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LM2902W
LOW POWER QUAD OPERATIONAL AMPLIFIER
s WIDE GAIN BANDWIDTH: 1.3MHz s INPUT COMMON-MODE VOLTAGE RANGE s LARGE VOLTAGE GAIN: 100dB s VERY LOW SUPPLY CURRENT/AMPLI: s LOW INPUT BIAS CURRENT: 20nA s LOW INPUT OFFSET CURRENT:2nA s WIDE POWER SUPPLY RANGE:
SINGLE SUPPLY: +3V TO +30V DUAL SUPPLIES: 1.5V TO 15V s ESD INTERNAL PROTECTION : 2kV DESCRIPTION This circuit consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specially for automotive and industrial control systems. It operates from a single power supply over a wide range of voltages. Operation from split power supplies is also possible. All the pins are protected against electrostatic discharges up to 2000v. ORDER CODE
Part Number LM2902W Temperature Range -40C, +125C Package N * D * P * P TSSOP14 (Thin Shrink Small Outline Package)
INCLUDES GROUND
375A
N DIP14 (Plastic Package)
D SO14 (Plastic Micropackage)
N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape & Reel (PT)
PIN CONNECTIONS (top view)
Output 1 1 Inverting Input 1 2 Non-inverting Input 1 3 VCC + 4 Non-inverting Input 2 Inverting Input 2 5 6 + + + +
14 Output 4 13 Inverting Input 4 12 Non-inverting Input 4 11 VCC 10 Non-inverting Input 3 9 8 Inverting Input 3 Output 3
Output 2 7
Sept 2003
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LM2902W
SCHEMATIC DIAGRAM (1/4 LM2902)
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vid VI Supply Voltage Differential Input Voltage Input Voltage Output Short-circuit to Ground 1) Power Dissipation N Suffix D Suffix Input Current 2) Operating Free-Air Temperature Range Storage Temperature Range Parameter Value 16 to 32 -0.3 to Vcc + 0.3 -0.3 to Vcc + 0.3 Infinite 500 400 50 -40 to +125 -65 to +150 mW mA C C Unit V V V
ptot Iin Toper Tstg
1. 2.
Short-circuit from the output to VCC can cause excessive heating if V CC > 15V. The maximum output current is approximately 40mA independent of the magnitude of VCC. Destructive dissipation can result from simultaneous short-circuit on all amplifiers. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-Amps to go to the VCC voltage level (or to ground for a large overdrive) for the time duration than an input is driven negative. This is not destructive and normal output will set up again for input voltage higher than -0.3V.
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LM2902W
ELECTRICAL CHARACTERISTICS VCC+ = 5V, V cc- = Ground, VO = 1.4V, Tamb = 25C (unless otherwise specified)
Symbol
1)
Parameter Input Offset Voltage Tamb = +25C Tmin Tamb Tmax. Input Offset Current Tamb = +25C Tmin Tamb Tmax. Input Bias Current 2) Tamb = +25C Tmin Tamb Tmax. Large Signal Voltage Gain VCC+ = +15V,RL=2k, Vo = 1.4V to 11.4V Tamb = +25C Tmin Tamb Tmax. Supply Voltage Rejection Ratio (RS 10k) Tamb = +25C Tmin Tamb Tmax. Supply Current, all Amp, no load VCC = +5V Tamb = +25C VCC = +30V VCC = +5V Tmin Tamb Tmax. VCC = +30V Input Common Mode Voltage Range (Vcc= +30V)3) Tamb = +25C Tmin Tamb Tmax. Common-mode Rejection Ratio (RS 10k) Tamb = +25C Tmin Tamb Tmax. Output Short-circuit Current (Vid = +1V) VCC = +15V, Vo = +2V Output Sink Current (Vid = -1V) VCC = +15V, Vo = +2V VCC = +15V, Vo = +0.2V High Level Output Voltage (Vcc + 30V) RL = 2k Tamb = +25C Tmin Tamb Tmax. Tamb = +25C RL = 10k Tmin Tamb Tmax. (Vcc + 5V), RL = 2k Tmin Tamb Tmax. Tamb = +25C Low Level Output Voltage (RL = 10k) Tamb = +25C Tmin Tamb Tmax Slew Rate Vcc = 15V, Vi = 0.5 to 3V, RL = 2k, CL = 100pF, unity gain
Min.
Typ. 2
Max. 7 9 30 40 150 300
Unit mV
Vio
Iio
2
nA
Iib
20
nA
Avd
50 25 65 65
100
V/mV
SVR
110
dB
Icc
0.7 1.5 0.8 1.5
1.2 3 1.2 3 VCC -1.5 VCC -2
mA
Vicm
0 0 70 60 20 10 12 26 26 27 27 3.5 3 80
V
CMR
dB
IO Isink
40 20 50 27 28
70
mA
mA A
VOH
V
VOL
5
20 20
mV
SR
V/s 0.4
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LM2902W
Symbol GBP THD
Parameter Gain Bandwidth Product Vcc = 30V,Vin = 10mV, RL = 2k, CL = 100pF Total Harmonic Distortion f = 1kHz, AV = 20dB, RL = 2k, Vo = 2Vpp, CL = 100pF, Vcc = 30V Equivalent Input Noise Voltage f = 1kHz, RS = 100, Vcc = 30V Input Offset Voltage Drift Input Offset Current Drift Channel Separation 1kHz f 20kHz
+ +
Min.
Typ. 1.3
Max.
Unit MHz %
0.015 40 7 10 120 30 200 nV ----------Hz V/C pA/C dB
en DVio DIio VO1/VO2
1. 2. 3. 4.
4)
VO = 1.4V, RS = 0, 5V < VCC < 30V, 0V < Vic < VCC - 1.5V The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output, so no loading charge change exists on the input lines The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC+ -1.5V, but either or both inputs can go to +32V without damage. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequences.
INPUT BIAS CURRENT versus AMBIENT TEMPERATURE
IB (nA)
INPUT VOLTAGE RANGE
15
24 21 18 15 12 9 6 3 0
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C)
CURRENT LIMITING (Note 1)
90
INPUT VOLTAGE (V)
10
Negative
5
Positive
0
5
10
15
POWER SUPPLY VOLTAGE (V)
SUPPLY CURRENT
4
VCC
OUTPUT CURRENT (mA)
SUPPLY CURRENT (mA)
80 70 60 50 40 30 20 10 0
-55 -35 -15 5
-
IO
3
mA -
ID
+
2
+
1
Tamb = 0C to +125C
Tamb = -55C
25 45 65 85 105 125
0
10
20
30
TEMPERATURE (C)
POSITIVE SUPPLY VOLTAGE (V)
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LM2902W
GBP (mhz)
GAIN BANDWIDTH PRODUCT
OUTPUT VOLTAGE (V)
VOLAGE FOLLOWER PULSE RESPONSE
4 3 2 1 0 3 RL 2 k VCC = +15V
GAIN BANDWIDTH PRODUCT (MHz)
1.35
INPUT VOLTAGE (V)
1.30 1.25 1.2 1.15 1.1 1.05 1 -95 -9
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C)
COMMON MODE REJECTION RATIO
2 1
0 10 20 30 40
TIME ( s)
OUTPUT CHARACTERISTICS
10 VCC = +5V VCC = +15V VCC = +30V
COMMON MODE REJECTION RATIO (dB)
120
100 80
100 eI 100 100k eO + +7.5V +7.5V 100k
OUTPUT VOLTAGE (V)
1
v cc IO + VO
60 40
v cc /2
0.1
20 0 100 1K
0.01
10K 100K 1M
0,001 0,01 0,1
Tamb = +25C 1 10 100
FREQUENCY (Hz)
OUTPUT SINK CURRENT (mA)
VOLTAGE FOLLOWER PULSSE RESPONSE (SMALL SIGNAL)
500
OPEN LOOP FREQUENCY RESPONSE (NOTE 3)
140
0.1F VI VCC/2 + 10M
OUTPUT VOLTAGE (mV)
120
VOLTAGE GAIN (dB)
100 80 60 40 20 0
1.0 10 100
VCC
VO
450
el
+ eO 50pF
VCC = 30V & -55C Tamb +125C
400 Input 350 Output 300 Tamb = +25C VCC = 30 V
0 1 2 3 4 5 6 7 8
VCC = +10 to + 15V & -55C Tamb +125C 1k 10k 100k 1M 10M
250
FREQUENCY (Hz)
TIME (s)
LARGE SIGNAL FREQUENCY RESPONSE
20
100k 1k +15V VO +7V + 2k
OUTPUT VOLTAGE REFERENCED
OUTPUT CHARACTERISTICS
8 7 6
V CC /2 + IO VO V CC
OUTPUT SWING (Vpp)
15
VI
TO VCC+ (V)
5 4 3 2 1
0,001 0,01
-
10
Independent of V CC T amb = +25C
5
0
1k 10k 100k 1M
0,1
1
10
100
FREQUENCY (Hz)
OUTPUT SOURCE CURRENT (mA)
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LM2902W
TYPICAL SINGLE - SUPPLY APPLICATIONS AC COUPLED INVERTING AMPLIFIER
100 INPUT CURRENT (nA) 75
Rf 100k
50
CI R1 10k
1/4 LM2902
R1 (as shown AV = -10) Co 0 eo RL 10k 2VPP
A V= -
Rf
25
Tamb= +25C
eI ~ R2 VCC 100k
0 10 20 30 POSITIVE SUPPLY VOLTAGE (V)
160 R L = 20k
RB 6.2k R3 100k
C1 10F
VOLTAGE GAIN (dB)
120
80
R L = 2k
AC COUPLED NON-INVERTING AMPLIFIER
40
R1 100k R2 1M
0
10
20
30
POSITIVE SUPPLY VOLTAGE (V)
POWER SUPPLY & COMMON MODE REJECTION RATIO (dB) 120
C1 0.1F
1/4 LM2902
A V= 1 + R2 R1 (as shown A V = 11) Co 0 eo RL 10k 2V PP
CI
POWER SUPPLY & COMMON MODE REJECTION RATIO (dB)
RB 6.2k eI ~ R3 1M
115 110 105 100 95 90 85 80 75 70
SVR
R4 100k
V CC
C2 10F R5 100k
CMR
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C)
NON-INVERTING DC GAIN
Avd (dB)
LARGE SIGNAL VOLTAGE GAIN
LARGE SIGNAL VOLTAGE GAIN 120
10k 1/4 LM2902
eO
A V = 1 + R2 R1 (As shown A V = 101) +5V
115 110
-55
100
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C)
0 e I (mV)
6/10
e
105
R1 10k
R2 1M
O
(V)
LM2902W
DC SUMMING AMPLIFIER
e1 100k
ACTIVER BADPASS FILTER
R1 100k
C1 330pF
100k e2 e3 100k
1/4 LM2902
eO
e1
1/4 LM2902
R4 10M C2 330pF
R5 470k
1/4 LM2902
100k 100k
R3 10k 1/4 LM2902
R6 470k eO R7 100k V CC R8 100k C3 10F
e4
100k
eo = e1 + e2 - e3 - e4 where (e1 + e2) (e3 + e4) to keep eo 0V
Fo = 1kHz Q = 50 Av = 100 (40dB)
HIGH INPUT Z ADJUSTABLE GAIN DC INSTRUMENTATION AMPLIFIER
HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER
R1 100k
R2 100k R1 100k R3 100k
1/4 LM2902
e1
1/4 LM2902
R3 100k
R4 100k
R4 100k
R2 2k
Gain adjust
1/4 LM2902
eO
+V1 +V2
eo = [ 1 +
1/4 LM2902
Vo
R5 100k
R4 ] (e2 - e1) R3
As shown eo = (e2 - e1)
1/4 LM2902
e2
If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + 2R1 ] (e2 - e1) R2 As shown eo = 101 (e2 - e1)
R6 100k
R7 100k
LOW DRIFT PEAK DETECTOR
USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT (GENERAL CONCEPT)
IB
1/4 I B LM2902
1/4
I
eo Zo
I
I B LM2902 2N 929 0.001 F
eo
eI
1/4 LM2902
IB
eI ZI
1F
C *
2I B
2N 929 2I B R 1M
0.001F IB 3R 3M IB
1/4 LM2902
IB
IB 3M IB
1/4 LM2902
Input current compensation
Aux. amplifier for input current compensation
* Polycarbonate or polyethylene
1.5M
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LM2902W
PACKAGE MECHANICAL DATA
Plastic DIP-14 MECHANICAL DATA
mm. DIM. MIN. a1 B b b1 D E e e3 F I L Z 1.27 3.3 2.54 0.050 8.5 2.54 15.24 7.1 5.1 0.130 0.100 0.51 1.39 0.5 0.25 20 0.335 0.100 0.600 0.280 0.201 1.65 TYP MAX. MIN. 0.020 0.055 0.020 0.010 0.787 0.065 TYP. MAX. inch
P001A
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LM2902W
PACKAGE MECHANICAL DATA
SO-14 MECHANICAL DATA
DIM. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 8.55 5.8 1.27 7.62 4.0 5.3 1.27 0.68 8 (max.) 0.149 0.181 0.019 8.75 6.2 0.35 0.19 0.5 45 (typ.) 0.336 0.228 0.050 0.300 0.157 0.208 0.050 0.026 0.344 0.244 0.1 mm. MIN. TYP MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.003 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010
PO13G
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LM2902W
PACKAGE MECHANICAL DATA
TSSOP14 MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 4.9 6.2 4.3 5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 5.1 6.6 4.48 0.002 0.031 0.007 0.004 0.193 0.244 0.169 0.197 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0089 0.201 0.260 0.176 inch
A
A2 A1 b e K c L E
D
E1
PIN 1 IDENTIFICATION
1
0080337D
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement 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 STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States (c) http://www.st.com
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