View GM35805_1245140.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
Features
Short Circuit Protected Outputs True Differential Input Stage Single Supply Operation: 3.0 V to 32 V Low Input Bias Currents Internally Compensated Common Mode Range Extends to Negative Supply Single and Split Supply Operation ESD Clamps on the Inputs Increase Ruggedness of the Device without Affecting Operation
Description
Utilizing the circuit designs perfected for two operational amplifiers, these dual operational amplifiers feature low power drain, a common mode input voltage range extending to GND/ V EE, and single supply or split supply operation. The GM358 is equivalent to one-half of an GM324. These amplifiers have several distinct advantages over standard operational amplifier types in single supply applications. They can operate at supply voltages as low as 3.0 V or as high as 32 V, with quiescent currents about one-ifth of those associated with the MC1741 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.
SINGLE SUPPLY
SPLIT SUPPLIUES
3.0V to VCC(max) VCC VCC 1.5V to VCC(max) 1 1
2
2 1.5V to VEE(max) VEE VEE/ GND VEE/ GND
www.gammamicro.com
GM358 V0.1
1
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
MARKING INFORMATION & PIN CONFIGURATIONS (TOP VIEW)
SOP-8
Output B VCC Input BInput B+ Output B VCC
DIP - 8
Input BInput B+
8
7
6
5
8
7
6
5
GM358 AYWW
1
Output A Input A-
GM358 AYWW
1
VEE/ GND Input A+ Output A Input A-
2
3
4
2
3
4
VEE/ GND Input A+
Output A 1
8 VCC + + 7 Output B 6 Input B5 Input B+
A : Assembly Location Y : Year W W : Weekly
Input A- 2 Input A+ 3 VEE/ GND 4
ORDERING INFORMATION
Ordering Number
GM358D8T GM358S8T GM358S8R
Package
DIP-8 SOP-8 SOP-8
Shipping
60 Units / Tube 100 Units / Tube 2,500 Units /Tape &Reel
* For detail Ordering Number identification, please see last page.
GM358
2
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Power Supply Voltage Single Supply Split Supllies Input Differential Voltage Range (Note 1 ) Input Common Mode Voltage Range(Note 2) Output Short Circuit Duration Junction Temperature Thermal Resistance, Junction - to - Air (Note 3) Operating Ambient Temperature Range Storage Temperature Range ESD Tolerance - Human Body Model (Note 4)
SYMBOL
VCC VCC, VEE VIDR VICR tSC TJ RqJA TA TSTG -
VALUE
32 16 32 -0.3 to 32 Continuous 150 238 0 to +70 -55 to +125 2000
UNIT
Vdc
Vdc Vdc C C/ W C C V
Note 1: Split Power Supplies. Note 2: For Supply Voltages less 32V the absolute maximum input voltage is equal to the supply voltage. Note 3: RqJA for Case 846A Note 4: ESD data avilable upon request.
GM358
3
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
ELECTRICAL CHARACTERISTICS
(VCC = 5V, at specified free - air temperature, unless otherwise specified)
CHARACTERISTICS
Input Offset Voltage Average Temperature Coefficient of Input Offset Voltage Input Offset Current Average Temperature Coefficient of Input Offset Voltage Input Bias Current
SYMBOL
VIO
TEST CONDITIONS
VCC = 5V to MAX VCC = VICRmin VO = 1.4V 25C Full range Full range 25C Full range Full range 25C Full range 25C
Min
Typ
3
Max
7
Unit
mV
9 7 2 50 nA 150 10 -20 -250 nA -500 0 to VCC-1.5 V 0 to VCC-2 VCC-1.5 26 27 28 5 25 15 65 80 dB 100 20 mV V/ mV V pA/ C V/C
aVIO
IIO
VO = 1.4V
aIIO
IIB
VO = 1.4V
Common-Mode Input Voltage Range
VICR
VCC = 5V to MAX Full range RL 2kW 25C Full range Full range Full range 25C Full range 25C
High - Level Output Voltage
VOH
VCC=MAX, RL=2kW VCC=MAX, RL 10kW
Low - Level Output Voltage Large - Signal Differential Voltage Amplification Common Mode Rejection Ration Supply Voltage Rejection Ration Crosstalk Attenuation
VOL AVD
RL RL
10kW
VCC=15V, VO=1V to 11V, 2kW
CMRR
VCC = 5V to MAX, VIC = VICRmin VCC = 5V to MAX f = 1kHz to 20kHz VCC = 15V, VO = 0, VID = 1V VCC = 15V, VO =15V, VID = -1V VO = 200mV, VID = -1
kSVR VO1/ VO2
25C 25C 25C Full range 25C Full range 25C 25C Full range
65
100 120
dB dB
-20 -10
-30 mA
Output Current
IO
10 5 12
20
30 40 0.7 1 60 1.2
A mA
Short - Circuit Output Current
IOS
VCC at 5V, VO = 0, GND at -5V VO = 2.5V, no load
Supply current (two amplifiers)
ICC
VCC = MAX, VO = 0.5VCC Full range no load
mA 2
* All characteristics are measured under open loop conditions with zero common-mode input voltage unless otherwise specified. "MAX" VCC for testing purposes is 30V. Full range is 0C to 70C.
GM358
4
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
SCHEMATIC BLOCK DIAGRAM
Output
Bias Circuitry Common to both Amplifiers VCC Q22
Q16 Q19 5.0pF
Q15
Q14 Q13 40k Q12 25k
Q23
Q24
Q18 Q20 Inputs Q11 Q9 Q17 Q2 Q3 Q4 Q21 Q6 Q7 Q5 Q8 Q10 2.0k 2.4k VEE/ GND Q1 Q25
CIRCUIT DESCRIPTION
The GM358 series is made by using two internally compensated, andtwo - stage operational amplifiers. The first stage of each consists of differential input devices Q20 and Q18, with input buffer transistors Q21 and Q17, and the differential to single ended converter Q3 and Q4. The first stage performs not only the first stage gain function, but also performs the level shifting and transconductance reduction functions. By reducing the transconductance, a smaller compensation capacitor (only 5.0 pF) can be employed, thus saving chip area. The transconductance reduction is accomplished by splitting the collectors of Q20 and Q18. Another feature of this input stage is that the input common mode range can include the negative supply or ground, in single supply operation, without saturating either the input devices or the differential to single - ended converter. The second stage consists a standard current source load amplifier stage. Each amplifier is biased from an internal voltage regulator, which has a low temperature coefficient thus giving each amplifier good temperature characteristics as well as excellent power supply rejection.
GM358
5
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
Typical Performance Characteristics
120
Avol, Open loop Voltage Range (dB)
100 80 60 40 20 0 -20 1.0
VOR, Output Voltage (mV)
V CC = 15V V EE = GND T A = 25C
14 12 10 8.0 6.0 R L =2.0W V CC =15V 4.0 V EE =GND Gain=-100 2.0 R =1.0KW I R =100kW 0F 1.0 10
VIN 1k +7 VDC
100k +5 - VDC + VO 2k
10
100
1.0k
10k
100k
1.0M
100
f, Frequency (kHZ)
1000
f, Frequency (HZ)
Figure 1. Large-Signal Open Loop Voltage Gain
Figure 2. Large - Signal Frequency Response
550
ICC, Power Supply Current (mA)
VO, Output Voltage (mV)
V CC =30V 500 V EE =GND T =25C 450 A C L =50pF 400 350 300 250 200 0 0 1.0 2.0 3.0 4.0
t, Time(ms)
2.4
+ V eO 50pF
+
2.1 1.8 1.5 1.2 0.9 0.6 0.3
ein
mA +
lD
Input Output
TA =25C RL = 0 5.0 10 15 20 25 30 35
VCC, Power Supply Voltage (V)
5.0
6.0
7.0
8.0
0
Figure 3. Small Signal Voltage Follower Pulse Response (Noninverting)
Figure 4. Power Supply Current versus Power Supply Voltage
90
IIB, Input Bias Current (nA)
80
70 0 2.0 4.0 6.0 8.0 10 12 14 16 18 20
VCC, Power Supply Voltage (V)
Figure 5. Input Bias Current versus Supply Voltage
GM358
6
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
TYPICAL APPLICATIONS
50k e1
-
1/2
1 CR
R
GM358
+
5.0k 10k Vref VCC aR1 R1 bR1 VO fO= 1 2 RC e2 1 CR R
-
1/2
-
GM358
e0
1/2
GM358
+
+
1 Vref= VCC 2 R R C C
-
1/2
GM358
For: fO = 1.0kHz R = 16kW C = 0.01F
+
e0 = C(1 + a + b) (e2 - e1)
Figure 6. Wien Bridge Oscillator
Figure 7. High Impedance Differential Amplifier
R2 Hysteresis R1 Vref Vin C Vin R1 C R3 VOH VO VO
VCC
-
1/2
R2
1/2
GM358
GM358
+
R1 (V - Vref) + Vref R2 + R2 OL R1 VINH= (V - vref) + Vref R2 + R2 OL R1 H= (V - VOL) R2 + R2 OH VOL Vref Given:
+
C0 C0 =10C Vref =
VO
VINL=
VINL
VINH Vref
1 V 2 CC
f0 = center frequency A(f0) = gain center frequency
Choose value f0, C Then: R3 = R1 = Q p f0 C R3 2 A(f0)
Figure 8. Comparator with Hysteresis
R1* 0.1 VL R2 100
IL RL
-
1/2
GM358
R1 R3 2 4Q R1 -R2 Qf For less than 10% error from operational amplifier. 0 0 < 0.1 BW Where f0 and BW are expressed in Hz. R2 = If source impedance varies, filter may be preceded with voltage follower buffer to stabilize filter parameter. Figure 9. Multiple Feedback Bandpass Filter
+
R3 1k
VO
VO =
1V(IL) 1A + VIN
-
1/2
*(Increase R1 for IL small) + VL V - 2 Figure 10. Current Monitor
GM358
VO
+
VO = VIN
Figure 11. Voltage Follower
GM358
7
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
SOP-8 PACKAGE OUTLINE DIMENSIONS
0.008 +0.0018 -0.0005
0 ~ 8
0.028
+0.013 -0.022 +0.33 -0.56
0.200
+0.05 -0.01
Pad Layout
0.060 1.52
0.710
0.236 0.008 5.990
+0.21 -0.20 +0.003 -0.004
0.275 7.0
0.155 4.0
0.154
PIN INDENT
3.91 0.1
0.024 0.6 0.050 1.270
Inches ( mm )
0.191
+0.002 -0.004 +0.05 -0.10
4.850
0.063 0.005 1.600 0.130
0.057 NOM 1.450 NOM
( Inches ) mm
0.007 0.003 0.175 0.075
0.050 NOM 1.270 NOM
0.016
+0.004 -0.003 +0.10 -0.08
0.410
DIP-8 PACKAGE OUTLINE DIMENSIONS
0.26 0.006 6.60
+0.15 -0.16
0.30 7.62
+0.010 -0.015 +0.25 -0.38
0.36 0.01 9.14
+0.25 -0.26
0.01 0.25 0.365 0.02 9.27 0.51 0.13 3.30
+0.002 -0.006 +0.05 -0.15
+0.002 -0.003 +0.05 -0.08
0.180 MAX 4.570 MAX
GM358
0.015 MIN 0.380 MIN 0.125 MIN 3.180 MIN
0.018 0.004 0.46 0.10 0.039 0.07 0.99 0.18
0.06 0.01 1.52 +0.26 -0.25
0.100 NOM 2.540 NOM
0.021 0.005 0.53 +0.12 -0.13
(
Inches ) mm
8
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
ORDERING NUMBER
GM 358 S8 R
Gamma Micro. Circuit Type Package S8: SOP-8 D8: DIP-8 Shipping R: Tape & Reel
GM358
9
MICROELECTRONICS
A
A
Signal Conditioning GM358
DUAL OPERATIONAL AMPLIFIER
GM358
10

▲Up To Search▲

Price & Availability of GM35805

	To Download GM35805 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .