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ISL55190, ISL55290
Data Sheet March 30, 2007 FN6262.1
Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Low Power Op Amp
The ISL55190 and ISL55290 are single and dual high speed operational amplifiers featuring low noise, low distortion, and rail-to-rail output drive capability. They are designed to operate with single and dual supplies from +5VDC (2.5VDC) down to +3VDC (1.5VDC). These amplifiers draw 16mA of quiescent supply current per amplifier. For power conservation, this family offers a low-power shutdown mode that reduces supply current to 21A and places the amplifiers' output into a high impedance state. The ISL55190 ENABLE logic places the device in the shutdown mode with EN = 0 and the ISL55290 is placed in the shutdown mode with EN = 1. These amplifiers have excellent input and output overload recovery times and outputs that swing rail-to-rail. Their input common mode voltage range includes ground. The ISL55190 and ISL55290 are stable at gains as low as 5 with an input referred noise voltage of 1.2nV/Hz and harmonic distortion products -95dBc (2nd) and -92dBc (3rd) below a 4MHz 2VP-P signal. The ISL55190 is available in space-saving 8 Ld DFN and 8 Ld SOIC packages. The ISL55290 is available in a 10 Ld MSOP package.
Features
* 1.2nV/Hz input voltage noise, fO = 1kHz * Harmonic Distortion -95dBc, -92dBc, fO = 4MHz * Stable at gains as low as 5 * 800MHz gain bandwidth product (AV = 5) * 268V/s typical slew rate * 16mA typical supply current (21A in disable mode) * 300V typical offset voltage * 25A typical input bias current * 3V to 5V single supply voltage range * Rail-to-rail output * Enable pin * Pb-free plus anneal available (RoHS compliant)
Applications
* High speed pulse applications * Low noise signal processing * ADC buffers * DAC output amplifiers * Radio systems
Ordering Information
PART NUMBER (Note) ISL55190IBZ PART MARKING 55190 IBZ TAPE AND REEL PACKAGE (Pb-Free) 8 Ld SOIC PKG. DWG. # MDP0027
* Portable equipment
TABLE 1. ENABLE LOGIC ENABLE ISL55190 ISL55290 EN = 1 EN = 0 DISABLE EN = 0 EN = 1
ISL55190IBZ-T13 55190 IBZ ISL55190IRZ 190Z
13" 8 Ld SOIC MDP0027 (2,500 pcs) Tape and Reel 8 Ld DFN L8.3x3D
ISL55190IRZ-T13 190Z ISL55290IUZ 5290Z
13" 8 Ld DFN L8.3x3D (2,500 pcs) Tape and Reel 10 Ld MSOP MDP0043
ISL55290IUZ-T13 5290Z
13" 10 Ld MSOP MDP0043 (2500 pcs) Tape and Reel
Coming Soon Evaluation Board ISL55190EVAL1Z Coming Soon Evaluation Board ISL55290EVAL1Z NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright (c) Intersil Americas Inc. 2006, 2007. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
ISL55190, ISL55290 Pinouts
ISL55190 (8 LD SOIC) TOP VIEW
FEEDBACK 1 IN- 2 IN+ 3 V- 4 + 8 EN 7 VS+ 6 OUT 5 NC EN 1 FEEDBACK 2 IN- 3 IN+ 4 +
ISL55190 (8 LD DFN) TOP VIEW
8 V+ 7 OUT 6 NC 5 V-
ISL55290 (10 LD MSOP) TOP VIEW
OUT_A 1 IN-_A 2 IN+_A 3 V- 4 EN_A 5 + + 10 V+ 9 OUT_B 8 IN-_B 7 IN+_B 6 EN_B
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FN6262.1 March 30, 2007
ISL55190, ISL55290
Absolute Maximum Ratings (TA = +25C)
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V Supply Turn On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . . . 1V/s Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . V- - 0.5V to V+ + 0.5V ESD Rating Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . .3kV Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . .300V
Thermal Information
Thermal Resistance JA (C/W) 8 Ld DFN Package . . . . . . . . . . . . . . . . . . . . . . . . . 65.75 8 Ld SO Package . . . . . . . . . . . . . . . . . . . . . . . . . . 110 10 Ld MSOP Package . . . . . . . . . . . . . . . . . . . . . . . 115 Ambient Operating Temperature Range . . . . . . . . . .-40C to +85C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65C to +150C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . +125C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA
Electrical Specifications
PARAMETER DC SPECIFICATIONS VOS V OS --------------T IOS IB VCM CMRR PSRR AVOL VOUT
V+ = 5V, V -= GND, RL = 1k, RG = 30, RF = 120. unless otherwise specified. Parameters are per amplifier. All values are at V+ = 5V, TA = +25C CONDITIONS MIN TYP MAX UNIT
DESCRIPTION
Input Offset Voltage Input Offset Drift vs Temperature Input Offset Current Input Bias Current Common-Mode Voltage Range Common-Mode Rejection Ratio Power Supply Rejection Ratio Large Signal Voltage Gain Maximum Output Voltage Swing VCM = 0V to 3.8V V+ = 3V to 5V VO = 0.5V to 4V, RL = 1k Output low, RL = 1k Output high, RL = 1k, V+= 5V -40C to +85C
-1100
-300 0.43
500
V V/C
-1.3
-0.3 -25
0.7 -40 3.8
A A V dB dB dB
0 80 80 85 95 100 115 39 4.960 4.978 16 30 21 RL = 10 RL = 10 V+ to VReferred to -V Referred to -V ISL55190 (EN) ISL55290 (EN) ISL55190 (EN) ISL55290 (EN) 20 0.8 5 20 110 110 3 2 130 130
100
mV V
IS,ON
Supply Current, Enabled
ISL55190 ISL55290
20 38 49
mA mA A mA mA
IS,OFF IO+ IOVSUPPLY VINH VINL IENH
Supply Current, Disabled Short-Circuit Output Current Short-Circuit Output Current Supply Operating Range ENABLE High Level ENABLE Low Level ENABLE Input High Current VEN = V+ ENABLE Input Low Current VEN = V-
5
V V
0.8 80 1.5 6.2 80
V nA A A nA
IENL
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FN6262.1 March 30, 2007
ISL55190, ISL55290
Electrical Specifications
PARAMETER AC SPECIFICATIONS GBW HD (4 MHz) ISO X-TALK ISL55290 PSRR CMRR VN IN Gain Bandwidth Product 2nd Harmonic Distortion 3rd Harmonic Distortion Off-state Isolation; EN = 1 ISL55290; fO = 10MHz; AV = 5; VIN = 640mVP-P; EN = 0 ISL55190 Rf/Rg = 402/100; CL = 1.2pF Channel-to-Channel Crosstalk Power Supply Rejection Ratio fO = 10MHz; Input Common Mode Rejection Ratio; fO = 10MHz; Input Referred Voltage Noise Input Referred Current Noise fO = 10MHz; AV = 5; VOUT (Driven Channel) = 640mVP-P; Rf/Rg = 402/100; CL = 1.2pF VS = 2.5V; AV = 5; VSOURCE = 640mVP-P; Rf/Rg = 402/100; CL = 1.2pF VS = 2.5V; AV = 5; VCM = 640mVP-P; Rf/Rg = 402/100; CL = 1.2pF fO = 1kHz fO = 10kHz AV = +5; VOUT = 100mVP-P; Rf/Rg = 402/100 AV = 5; VOUT = 2VP-P; Rf/Rg = 402/100 800 -95 -92 -65 -75 -45 -38 1.2 6 MHz dBc dBc dB dB dB dB nV/Hz pA/Hz V+ = 5V, V -= GND, RL = 1k, RG = 30, RF = 120. unless otherwise specified. Parameters are per amplifier. All values are at V+ = 5V, TA = +25C CONDITIONS MIN TYP MAX UNIT
DESCRIPTION
TRANSIENT RESPONSE SR tr, tf Large Signal Slew Rate Rise Time, tr 10% to 90% Fall Time, tf 10% to 90% Rise Time, tr 10% to 90% Fall Time, tf 10% to 90% tr, tf, Small Signal tpd tIOL Rise Time, tr 10% to 90% Fall Time, tf 10% to 90% Propagation Delay 10% VIN to 10% VOUT Positive Input Overload Recovery Time, tIOL+; 10% VIN to 10% VOUT Negative Input Overload Recovery Time, tIOL-; 10% VIN to 10% VOUT tOOL AV = 5; VOUT = 3.5VP-P; Rf/Rg = 402/100 CL = 1.2pF AV = 5; VOUT = 1VP-P; Rf/Rg = 402/100 CL = 1.2pF AV = 5; VOUT = 1VP-P; Rf/Rg = 402/100 CL = 1.2pF AV = 5; VOUT = 100mVP-P; Rf/Rg = 402/100 CL = 1.2pF VS = 2.5V; AV = 5; VIN = +VCM +0.1V; Rf/Rg = 402/100; CL = 1.2pF VS = 2.5V; AV = 5; VIN = -V -0.5V; Rf/Rg = 402/100; CL = 1.2pF 163 268 11.2 9.8 4.4 4.0 2.2 2.0 1.6 15 18 17 17 420 240 160 32 V/uS ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns
Positive Output Overload Recovery VS = 2.5V; AV = 5; VIN = 1.1VP-P; Time, tOOL+; 10% VIN to 10% VOUT Rf/Rg = 402/100; CL = 1.2pF Negative Output Overload Recovery VS = 2.5V; AV = 5; VIN = 1.1VP-P; Time, tOOL-; 10% VIN to 10% VOUT Rf/Rg = 402/100; CL = 1.2pF
tEN ISL55190
ENABLE to Output Turn-on Delay Time; 10% EN to 10% VOUT ENABLE to Output Turn-off Delay Time; 10% EN to 10% VOUT
AV = 5; VIN = 500mVP-P; Rf/Rg = 402/100 CL = 1.2pF AV = 5; VIN = 500mVP-P; Rf/Rg = 402/100 CL = 1.2pF AV = 5; VIN = 500mVP-P; Rf/Rg = 402/100 CL = 1.2pF AV = 5; VIN = 500mVP-P; Rf/Rg = 402/100 CL = 1.2pF
tEN ISL55290
ENABLE to Output Turn-on Delay Time; 10% EN to 10% VOUT ENABLE to Output Turn-off Delay Time;10% EN to 10% VOUT
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves
2 AV = 5 Rf = 1.21k, RG = 301 1 RL = 1k VOUT = 100mVP-P 0 NORMALIZED GAIN (dB) -1 -2 -3 -4 -5 -6 -7 -8 .01 0.1 1.0 10 FREQUENCY (MHz) 100 1k Rf = 100, RG = 24.9 Rf = 402, RG = 100 Rf = 604, RG = 150 1 0 NORMALIZED GAIN (dB) -1 -2 -3 -4 -5 -6 -7 -8 0.1 1.0 10 100 FREQUENCY (MHz) 1k AV = 5 Rf = 402 Rg = 100 RL = 1k VOUT = 200mV VOUT = 1V VOUT = 100mV
FIGURE 1. GAIN vs FREQUENCY vs Rf AND Rg
FIGURE 2. GAIN vs FREQUENCY vs VOUT
1 0 CLOSED LOOP GAIN (dB) NORMALIZED GAIN (dB) -1 -2 -3 -4 -5 -6 -7 -8 -9 .01 AV = 5 Cg = 0.8pF CL = 1.2pF Rg = 100 Rf = 402 VP-P = 100mV 0.1 RL= 1000 RL= 499 RL= 249 RL= 100
70 60 50 40 30 20 10 AV = 5 Rf/Rg = 402/100 1.0 10 FREQUENCY (MHz) 100 1k 0 0.1 1.0 10 FREQUENCY (MHz) 100 1k AV = 10 Rf/Rg = 909/100 AV = 1000 Rf/Rg = 100k/100 RL = 1k CL = 2.2pF Cg = 2.5pF VP-P = 100mV
AV = 100 Rf/Rg = 10k/100
FIGURE 3. ISL55290 GAIN vs FREQUENCY vs RL
FIGURE 4. CLOSED LOOP GAIN vs FREQUENCY
1 0 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) -1 -2 -3 -4 -5 -6 -7 -8 -9 .01 AV = 5 CG = 1.6pF g = 1.6pF RL = 1k RG = 100 g = 100 RF= 402 f = 402 VP-P = 100mV P-P OUT = 100mV 0.1 VS = 2.4V VS= 5.0V = 5.0V
4 3 2 1 0 -1 -2 -3 AV = 5 RL = 1k -4 Rf = 402 -5 Rg = 100 VOUT = 100mVP-P -6 .01 0.1 1.0 CL = 2.2pF CL = 1.2pF CL = 13.2pF CL = 8.0pF CL = 4.5pF
1.0 10 FREQUENCY (MHz)
100
1k
10
100
1k
FREQUENCY (MHz)
FIGURE 5. GAIN vs FREQUENCY vs VS
FIGURE 6. ISL55190 GAIN vs FREQUENCY vs CL
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
5 AV = 5 4 RL = 1k R = 402 3 Rf = 100 g 2 VOUT = 100mVpp 1 0 -1 -2 -3 -4 -5 .01 0.1 1.0 10 100 1k CL = 2.2pF CL = 2.2pF CL = 1.2pF 5 4 NORMALIZED GAIN (dB) CL = 13.2pF CL = 8.0pF 3 2 1 0 -1 -2 -3 -4 -5 .01 0.1 1.0 Cg = 3.0pF Cg = 2.3pF Cg = 1.8pF Cg = 0.8pF 10 100 1k AV = 5 RL = 1k Rg = 100 Rf = 402 VOUT = 100mVP-P Cg = 9.0pF Cg = 7.6pF Cg = 5.5pF Cg = 4.1pF
NORMALIZED GAIN (dB)
FREQUENCY (MHz)
FREQUENCY (MHz)
FIGURE 7. ISL55290 GAIN vs FREQUENCY vs CL
FIGURE 8. ISL55190 GAIN vs FREQUENCY vs Cg
5 DISABLED INPUT IMPEDANCE () 4 NORMALIZED GAIN (dB) 3 2 1 0 -1 -2 -3 -4 -5 .01 0.1 1.0 10 100 1k FREQUENCY (MHz) AV = 5 RL = 1k Rg = 100 Rf = 402 VOUT = 100mVP-P Cg = 10.5pF Cg = 8.7pF Cg = 5.2pF Cg = 3.8pF Cg = 2.7pF Cg = 2.0pF Cg = 1.6pF Cg = 0.5pF
10M 1M 100k 10k 1k 100 10 1 .01 AV = 5 RL = 1k Cg = 1.6pF CL = 1.2pF Rf = 402 Rg = 100 VSOURCE = 500mVP-P
0.1
1.0 10 FREQUENCY (MHz)
100
1k
FIGURE 9. ISL55290 GAIN vs FREQUENCY vs Cg
FIGURE 10. DISABLED INPUT IMPEDANCE vs FREQUENCY
100k ENABLED INPUT IMPEDANCE ()
1000
OUTPUT IMPEDANCE ()
10k
OUTPUT DISABLED
1k AV = 5 RL = 1k RL = 1k Cg = 1.6pF Rf = 402 CL = 1.2pF Ri = 100 Rf = 402 = 500mVP-P V RSOURCE i = 100
100 AV = 5 Rf = 402 Rg = 100 VSOURCE = 1VP-P
100
10
1 .01
0.1
1.0 10 FREQUENCY (MHz)
100
1k
10 .01
0.1
1.0
10
100
1k
FREQUENCY (MHz)
FIGURE 11. ENABLED INPUT IMPEDANCE vs FREQUENCY
FIGURE 12. DISABLED OUTPUT IMPEDANCE vs FREQUENCY
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
100 AV = 5 Rg = 100 Rf = 402 VSOURCE =1VP-P GAIN (dB) 10 A =5 0 CV = 0.8pF g -10 RL = 1k Rg = 100 -20 Rf = 402 VCM = 1VP-P -30 -40 -50 -60 0.1 -70 -80 0.01 .01 0.1 1.0 10 100 1k -90 .01 0.1 1.0 10 FREQUENCY (MHz) 100 1k
OUTPUT IMPEDANCE ()
10
1 OUTPUT ENABLED
FREQUENCY (MHz)
FIGURE 13. ENABLED OUTPUT IMPEDANCE vs FREQUENCY
FIGURE 14. CMRR vs FREQUENCY
10 AV = 5 0 C = 0.8pF g -10 RL = 1k Rg = 100 -20 Rf = 402 VSOURCE = 1VP-P -30 -40 -50 -60 -70 -80 -90 .01 PSRR+
0 -20 OFF ISOLATION (dB) PSRR-40 -60 -80 -100 -120 AV = 5 Cg = 1.6pF CL = 1.2pF RL = 1k Rf = 402 Ri = 100 VIN = 640mVP-P
PSRR (dB)
0.1
1.0
10
100
1k
.01
0.1
1.0
10
100
1k
FREQUENCY (MHz)
FREQUENCY (MHz)
FIGURE 15. PSRR vs FREQUENCY
FIGURE 16. OFF ISOLATION vs FREQUENCY
0 INPUT NOISE VOLTAGE (nVHz) AV = 5 Cg = 1.6pF -20 C = 1.2pF L RL = 1k Rf = 402 -40 Ri = 100 VOUT (DRIVEN CHANNEL) = 640mVP-P -60 -80 -100 -120 .01
100 AV = 100 Cg = 1.6pF Rf = 330 Rg = 3.3 Ri = 1k 10
CROSSTALK (dB)
1 0.1 1.0 10 100 1k 0.1 1 10 100 1k 10k 100k FREQUENCY (MHz) FREQUENCY (Hz)
FIGURE 17. ISL55290 CHANNEL TO CHANNEL CROSSTALK vs FREQUENCY
FIGURE 18. INPUT VOLTAGE NOISE vs FREQUENCY
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
1000 0.6 AV = 5 VS = 2.5V 0.4 RL = 1k CL = 1.3pF VOUT = 1VP-P 0.2 0 -0.2 -0.4 -0.6 0
INPUT NOISE CURRENT (pAHz)
100
10 AV = 100 Cg = 1.6pF Rf = 330 Rg = 3.3 Ri = 1k 1 0.1 1 10 100 1k FREQUENCY (Hz) 10k 100k
LARGE SIGNAL (V)
10
20
30
40 50 60 TIME (s)
70
80
90
100
FIGURE 19. INPUT NOISE CURRENT vs FREQUENCY
FIGURE 20. LARGE SIGNAL STEP RESPONSE
0.06 0.04 OVERSHOOT (%) SMALL SIGNAL (V) 0.02 0 -0.02 -0.04 -0.06 0 10 20 30 40 50 60 70 80 90 100 TIME (s)
50 45 40 35 30 25 20 15 10 5 0 0 5 10 CL (pF) 15 20 -2 25 -3 1 VOUT = 0.5V VOUT = 1V VOUT = 3.5V 0 -1 AV = 5 VS = 2.5V RL = 1k CL = 1.3pF VOUT =100mVP-P AV = 5 RL = 1k Rg = 100 Rf = 402 VOUT = 0.1V 3 2 OUTPUT (V) OUTPUT (V)
FIGURE 21. SMALL SIGNAL STEP RESPONSE
FIGURE 22. ISL55290 PERCENT OVERSHOOT vs VOUT, CL
1.4 1.3 1.2 1.1 INPUT (V) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0 10 20 30 40 TIME (ns) 50 60 70 OUTPUT INPUT AV = 5 RL = 10k VS = 2.5V Rg = 100 Rf = 402 VIN = VCM +0.1V
3.0 2.5 2.0 1.5 INPUT (V) 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 80 OUTPUT (V)
-1.0 -1.5 -2.0 -2.5 -3.0 -3.5 -4.0 0 10 20 30 40 TIME (ns) OUTPUT AV = 5 RL = 10k VS = 2.5V Rg = 100 Rf = 402 VIN = -V-0.5V 50 60 70
3 2 1 0 -1 -2 -3 80
INPUT
FIGURE 23. POSITIVE INPUT OVERLOAD RECOVERY TIME
FIGURE 24. NEGATIVE INPUT OVERLOAD RECOVERY TIME
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
0.6 0.4 0.2 INPUT(V) 0 -0.2 -0.4 -0.6 0 10 20 30 AV = 5 RL = 10k VS = +2.5V Rg = 100 Rf = 402 VIN = 1.1VP-P 40 50 60 TIME (nS) 70 80 90 100 INPUT 3 2 OUTPUT 1 0 -1 -2 -3 3.0 2.5 2.0 OUTPUT (V) OUTPUT (V) 1.5 1.0 ENABLE 0.5 0 -0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 TIME (s) 1.0 0 -1.0 4.0 6.0 5.0 4.0 3.0 2.0 ENABLE (V)
AV = 5 RL = 1k Rg = 100 Rf = 402 VIN = 0.5V
OUTPUT
FIGURE 25. OUTPUT OVERLOAD RECOVERY TIME
FIGURE 26. ISL55290 ENABLE TO OUTPUT DELAY
265 AV = 5 RL = 10k Ri = 100 Rf = 402
-220 -230 SLEW RATE (V/s) -240 -250 -260 -270 -280 AV = 5 RL = 10k Ri = 100 Rf = 402 3.0 3.5 4.0 4.5 VS (V) 5.0 5.5
255 SLEW RATE (V/s)
245
235
225
215 3.0 3.5 4.0 4.5 VS (V) 5.0 5.5
-290
FIGURE 27. ISL55290 POSITIVE SLEW RATE vs VS
FIGURE 28. ISL55290 NEGATIVE SLEW RATE vs VS
24 n = 100 22 MAX CURRENT (mA) 20 18 16 14 12 10 -40 -20 0 20 40 TEMPERATURE (C) 60 80 MIN ISL55190 MEDIAN CURRENT(A)
34 n = 100 32 30 MAX 28 26 24 22 20 18 16 -40 MIN -20 0 20 40 TEMPERATURE (C) 60 80 MEDIAN
FIGURE 29. SUPPLY CURRENT ENABLED vs TEMPERATURE VS = 2.5V
FIGURE 30. SUPPLY CURRENT DISABLED vs TEMPERATURE VS = 2.5V
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
17.5 16.5 15.5 CURRENT(mA) 14.5 13.5 12.5 11.5 10.5 9.5 8.5 -40 -20 0 20 40 TEMPERATURE (C) 60 80 MIN ISL55190 MEDIAN MAX CURRENT(A) n = 100 7.5 n = 100 7.0 6.5 MAX 6.0 5.5 5.0 4.5 4.0 3.5 3.0 -40 -20 0 20 40 TEMPERATURE (C) 60 80 MIN MEDIAN
FIGURE 31. SUPPLY CURRENT ENABLED vs TEMPERATURE VS = 1.5V
FIGURE 32. SUPPLY CURRENT DISABLED vs TEMPERATURE VS = 1.5V
600 500 300 100 VOS ( V) -100 -300 -500 -700 -900 -1100 -40 -20 0 20 40 TEMPERATURE (C) 60 80 -900 -1200 -40 MIN MEDIAN VOS ( V) MAX n = 100 300 MEDIAN 0 -300 -600 MIN MAX n = 100
-20
0
20 40 TEMPERATURE (C)
60
80
FIGURE 33. VIO vs TEMPERATURE VS = 2.5V
FIGURE 34. VIO vs TEMPERATURE VS = 1.5V
-22 -23 -24 -25 IBIAS + (A) -26 -27 -28 -29 -30 -31 -32 -40 -20 0 MIN 20 40 TEMPERATURE (C) 60 80 MEDIAN IBIAS - (A) n = 100 MAX
-22 n = 100 -23 -24 -25 -26 -27 -28 -29 -30 -31 -40 MIN -20 0 20 40 TEMPERATURE (C) 60 80 MEDIAN MAX
FIGURE 35. IBIAS+ vs TEMPERATURE VS = 2.5V
FIGURE 36. IBIAS- vs TEMPERATURE VS = 2.5V
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
-21 -22 -23 -24 IBIAS + (A) -25 -26 -27 -28 -29 -30 -31 -40 -20 0 20 40 MIN IBIAS - (A) MEDIAN n = 100 MAX -21 -22 -23 -24 -25 -26 -27 -28 -29 80 -30 -40 MIN -20 0 20 40 60 80 MEDIAN n = 100 MAX
60
TEMPERATURE (C)
TEMPERATURE (C)
FIGURE 37. IBIAS+ vs TEMPERATURE VS = 1.5V
FIGURE 38. IBIAS- vs TEMPERATURE VS = 1.5V
0.4 0.2 0 -0.2
n = 100 MAX
0.5 0.3 0.1 -0.1 IOS (nA) -0.3 -0.5 -0.7 -0.9 MIN -1.1 -1.3 MIN MEDIAN n = 100 MAX
-0.4 IOS (A) -0.6 -0.8 -1.0 -1.2 -1.4 -1.6 -40 -20 0 MEDIAN
20 40 TEMPERATURE (C)
60
80
-1.5 -40
-20
0
20 40 TEMPERATURE (C)
60
80
FIGURE 39. IOS vs TEMPERATURE VS = 2.5V
FIGURE 40. IOS vs TEMPERATURE VS = 1.5V
98 n = 100 97 96 CMRR (dB) 95 94 93 92 91 -40 -20 0 20 40 60 80 V+ = 3V 90 MIN 80 -40 -20 0 20 40 60 80 TEMPERATURE (C) TEMPERATURE (C) PSRR (dB) V+ = 5V 120 110 MEDIAN 100 130 n = 100 MAX
FIGURE 41. CMRR vs TEMPERATURE. V+ = 2.5V, 1.5V
FIGURE 42. PSRR vs TEMPERATURE 1.5V to 2.5V, VS = 2.5V
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Typical Performance Curves (Continued)
4.986 4.984 4.982 VOUT (mV) VOUT (mV) 4.980 4.978 4.976 4.974 4.972 4.970 4.968 -40 -20 0 20 40 TEMPERATURE (C) 60 80 MIN MEDIAN n = 100 MAX 110 100 90 80 70 60 50 40 30 20 -40 MIN -20 0 20 40 60 80 MEDIAN MAX n = 100
TEMPERATURE (C)
FIGURE 43. VOUT HIGH vs TEMPERATURE VS = 2.5V, RL = 1k
FIGURE 44. VOUT LOW vs TEMPERATURE VS = 2.5V, RL = 1k
2.986 n = 100 2.984 2.982 2.980 2.978 MEDIAN 2.976 2.974 MIN 2.972 -40 -20 0 20 40 TEMPERATURE (C) 60 80 VOUT (mV) VOUT (V) MAX
60 n = 100 55 50 45 40 MEDIAN 35 30 25 MIN 20 -40 -20 0 20 40 60 80 TEMPERATURE (C) MAX
FIGURE 45. VOUT HIGH vs TEMPERATURE VS = 1.5V, RL = 1k
FIGURE 46. VOUT LOW vs TEMPERATURE VS = 1.5V, RL = 1k
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Pin Descriptions
ISL55190 (8 Ld SOIC) 5 2 ISL55190 (8 Ld DFN) 6 3 2 (A) 8 (B) ISL55290 (10 Ld MSOP) PIN NAME NC INFUNCTION Not connected Inverting input
V+
EQUIVALENT CIRCUIT
IN-
IN+
VCircuit 1
3 4 6
4 5 7
3 (A) 7 (B) 4 1 (A) 9 (B)
IN+ VOUT
Non-inverting input Negative supply Output
(See circuit 1)
V+
OUT
VCircuit 2
7
8
10 5 (A) 6 (B)
V+ EN
Positive supply Enable pin with internal pulldown referenced to the -V pin; Logic "1" selects the disabled state; Logic "0" selects the enabled state.
V+
EN VCircuit 3a
8
1
EN
Enable pin with internal pulldown referenced to the -V pin; Logic "0" (-V) selects the disabled state; Logic "1" (+V) selects the enabled state.
V+
EN VCircuit 3b
1
2
FEEDBACK Feedback pin to reduce INcapacitance
FEEDBACK
V+
OUT
VCircuit 4
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Applications Information
Product Description
The ISL55190 and ISL55290 are single and dual high speed, voltage feedback amplifiers designed for fast pulse applications, as well as communication and imaging systems that require very low voltage and current noise. Both devices are stable at a minimum gain of 5 and feature low distortion while drawing moderately low supply current. The ISL55190 and ISL55290 use a classical voltage-feedback topology, which allows them to be used in a variety of high speed applications where current-feedback amplifiers are not appropriate due to restrictions placed upon the feedback element used with the amplifier. where: * PDMAXTOTAL is the sum of the maximum power dissipation of each amplifier in the package (PDMAX) * PDMAX for each amplifier can be calculated using Equation 2:
V OUTMAX PD MAX = 2*V S x I SMAX + ( V S - V OUTMAX ) x --------------------------R
L
(EQ. 2)
where: * TMAX = Maximum ambient temperature * JA = Thermal resistance of the package * PDMAX = Maximum power dissipation of 1 amplifier * VS = Supply voltage * IMAX = Maximum supply current of 1 amplifier * VOUTMAX = Maximum output voltage swing of the application * RL = Load resistance
Enable/Power-Down
Both devices can be operated from a single supply with a voltage range of +3V to +5V, or from split 1.5V to 2.5V. The logic level input to the ENABLE pins are TTL compatible and are referenced to the -V terminal in both single and split supply applications. The following discussion assumes single supply operation. The ISL55190 uses a logic "0" (<0.8V) to disable the amplifier and the ISL55290 uses a logic "1" (>2V) to disable its amplifiers. In this condition, the output(s) will be in a high impedance state and the amplifier(s) current will be reduced to 21A. The ISL55190 has an internal pull-up on the EN pin and is enabled by either floating or tying the EN pin to a voltage >2V. The ISL55290 has internal pull-downs on the EN pins and are enabled by either floating or tying the EN pins to a voltage <0.8V. The enable pins should be tied directly to their respective supply pins when not being used (EN tied to -V for the ISL55290 and EN tied to +V for the ISL55190).
Power Supply Bypassing and Printed Circuit Board Layout
As with any high frequency device, good printed circuit board layout is necessary for optimum performance. Low impedance ground plane construction is essential. Surface mount components are recommended, but if leaded components are used, lead lengths should be as short as possible. The power supply pins must be well bypassed to reduce the risk of oscillation. The combination of a 4.7F tantalum capacitor in parallel with a 0.01F capacitor has been shown to work well when placed at each supply pin. For good AC performance, parasitic capacitance should be kept to a minimum, especially at the inverting input. When ground plane construction is used, it should be removed from the area near the inverting input to minimize any stray capacitance at that node. Carbon or Metal-Film resistors are acceptable with the Metal-Film resistors giving slightly less peaking and bandwidth because of additional series inductance. Use of sockets (particularly for the SOIC package) should be avoided if possible. Sockets add parasitic inductance and capacitance which, will result in additional peaking and overshoot. For inverting gains, this parasitic capacitance has little effect because the inverting input is a virtual ground, but for noninverting gains, this capacitance (in conjunction with the feedback and gain resistors) creates a pole in the feedback path of the amplifier. This pole, if low enough in frequency, has the same destabilizing effect as a zero in the forward open-loop response. The use of large-value feedback and gain resistors exacerbates the problem by further lowering the pole frequency (increasing the possibility of oscillation).
Current Limiting
The ISL55190 and ISL55290 have no internal currentlimiting circuitry. If the output is shorted, it is possible to exceed the Absolute Maximum Rating for output current or power dissipation, potentially resulting in the destruction of the device.
Power Dissipation
It is possible to exceed the +125C maximum junction temperatures under certain load and power-supply conditions. It is therefore important to calculate the maximum junction temperature (TJMAX) for all applications to determine if power supply voltages, load conditions, or package type need to be modified to remain in the safe operating area. These parameters are related using Equation 1:
T JMAX = T MAX + ( JA xPD MAXTOTAL ) (EQ. 1)
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FN6262.1 March 30, 2007
ISL55190, ISL55290
CURRENT INPUT
+5VDC
RF 10k
RGRT 100 PARASITIC L TO R RSENSE 0.01 RG+ 100 RREF 10k VREF +2.5V CURRENT INPUT
ISL55190 IN- V+ FEEDBACK OUT IN+ VRL
VOUT
FIGURE 47. GROUND SIDE CURRENT SENSE AMPLIFIER
The ISL55190 single has a dedicated feedback pin which is internally connected to the amplifier output and located next to the inverting input pin. This additional output connection enables the PC board trace capacitance at the inverting pin to be minimized.
Current Sense Application Circuit
The schematic in Figure 47 provides an example of utilizing the ISL55190 high speed performance with the ground sensing input capability to implement a single-supply, G =1 0 differential low side current sense amplifier. This circuit can be used to sense currents of either polarity. The reference voltage applied to VREF (+2.5V) defines the amplifier output 0A current sense reference voltage at one half the supply voltage level (VS = +5VDC), and RSENSE sets the current sense gain and full scale values. In this example the current gain is 10A/V over a maximum current range of slightly less than 25A with RSENSE = 0.01. The amplifier VIO error (-1.1mV max) and input bias offset current (IIO) error (1.3A) together contribute less than 15mV (150mA) at the output for better than 0.3% full scale accuracy. The amplifier's high slew rate and fast pulse response make this circuit suitable for low-side current sensing in PWM and motor control applications. The excellent input overload recovery response enables the circuit to maintain performance in the presence of parasitic inductance that can cause fast rise and falling edge spikes that can momentarily overload the input stage of the amplifier.
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Small Outline Package Family (SO)
A D N (N/2)+1 h X 45
A E E1 PIN #1 I.D. MARK c SEE DETAIL "X"
1 B
(N/2) L1
0.010 M C A B e C H A2 GAUGE PLANE A1 0.004 C 0.010 M C A B b DETAIL X
SEATING PLANE L 4 4
0.010
MDP0027
SMALL OUTLINE PACKAGE FAMILY (SO) INCHES SYMBOL A A1 A2 b c D E E1 e L L1 h N NOTES: 1. Plastic or metal protrusions of 0.006" maximum per side are not included. 2. Plastic interlead protrusions of 0.010" maximum per side are not included. 3. Dimensions "D" and "E1" are measured at Datum Plane "H". 4. Dimensioning and tolerancing per ASME Y14.5M-1994 SO-8 0.068 0.006 0.057 0.017 0.009 0.193 0.236 0.154 0.050 0.025 0.041 0.013 8 SO-14 0.068 0.006 0.057 0.017 0.009 0.341 0.236 0.154 0.050 0.025 0.041 0.013 14 SO16 (0.150") 0.068 0.006 0.057 0.017 0.009 0.390 0.236 0.154 0.050 0.025 0.041 0.013 16 SO16 (0.300") (SOL-16) 0.104 0.007 0.092 0.017 0.011 0.406 0.406 0.295 0.050 0.030 0.056 0.020 16 SO20 (SOL-20) 0.104 0.007 0.092 0.017 0.011 0.504 0.406 0.295 0.050 0.030 0.056 0.020 20 SO24 (SOL-24) 0.104 0.007 0.092 0.017 0.011 0.606 0.406 0.295 0.050 0.030 0.056 0.020 24 SO28 (SOL-28) 0.104 0.007 0.092 0.017 0.011 0.704 0.406 0.295 0.050 0.030 0.056 0.020 28 TOLERANCE MAX 0.003 0.002 0.003 0.001 0.004 0.008 0.004 Basic 0.009 Basic Reference Reference NOTES 1, 3 2, 3 Rev. M 2/07
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FN6262.1 March 30, 2007
ISL55190, ISL55290
Package Outline Drawing
L8.3x3D
8 LEAD DUAL FLAT NO-LEAD PLASTIC PACKAGE (DFN) Rev 0, 9/06
PIN 1 INDEX AREA
B 0.075 C 4X
3.00
A
1.45
PIN 1 INDEX AREA
6X 0.50 BSC 3.00 1.75 1.50 REF
8X 0.25
0.10 M C A B
8X 0.40
TOP VIEW
2.20
BOTTOM VIEW
(8X 0.25)
(8X 0.60)
SEE DETAIL X''
0.10 C 0.85
C SEATING PLANE 0.08 C
(1.75) (6X 0.50 BSC)
SIDE VIEW
(1.45) (2.20)
TYPICAL RECOMMENDED LAND PATTERN
c
0.20 REF
5
0~0.05
DETAIL "X"
NOTES: 1. Controlling dimensions are in mm. Dimensions in ( ) for reference only. 2. Unless otherwise specified, tolerance : Decimal 0.05 Angular 2 3. Dimensioning and tolerancing conform to JEDEC STD MO220-D. 4. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 identifier may be either a mold or mark feature. 5. Tiebar shown (if present) is a non-functional feature.
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FN6262.1 March 30, 2007
ISL55190, ISL55290 Mini SO Package Family (MSOP)
0.25 M C A B D N A (N/2)+1
MDP0043
MINI SO PACKAGE FAMILY MILLIMETERS SYMBOL A A1 MSOP8 1.10 0.10 0.86 0.33 0.18 3.00 4.90 3.00 0.65 0.55 0.95 8 MSOP10 1.10 0.10 0.86 0.23 0.18 3.00 4.90 3.00 0.50 0.55 0.95 10 TOLERANCE Max. 0.05 0.09 +0.07/-0.08 0.05 0.10 0.15 0.10 Basic 0.15 Basic Reference NOTES 1, 3 2, 3 Rev. D 2/07 NOTES: 1. Plastic or metal protrusions of 0.15mm maximum per side are not included.
E
E1
PIN #1 I.D.
A2 b c
B
1 (N/2)
D E E1
e C SEATING PLANE 0.10 C N LEADS b
H
e L L1 N
0.08 M C A B
L1 A c SEE DETAIL "X"
2. Plastic interlead protrusions of 0.25mm maximum per side are not included. 3. Dimensions "D" and "E1" are measured at Datum Plane "H". 4. Dimensioning and tolerancing per ASME Y14.5M-1994.
A2 GAUGE PLANE L DETAIL X
0.25
A1
3 3
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com 18
FN6262.1 March 30, 2007

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