DUAL OPERATIONAL AMPLIFIER Power Management Utilizing circui

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DUAL OPERATIONAL AMPLIFIER Power Management Utilizing circui

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GM358
DUAL OPERATIONAL AMPLIFIER
Power Management
Utilizing circuit designs perfected operational amplifiers, these dual operational amplifiers feature power drain, common mode input voltage range extending GND/ VEE, single supply split supply operation. GM358 series equivalent one-alf GM324. These amplifiers have several distinct advantages over standard operational amplifier types single supply applications. They operate supply voltages high with quiescent currents about one-ifth those associated with MC1741 amplifier basis). common mode input range includes negative supply, thereby eliminating necessity external biasing components many applications. output voltage range also includes negative power supply voltage.
Features
Short Circuit Protected Outputs True Differential Input Stage Single Supply Operation: Input Bias Currents Internally Compensated Common Mode Range Extends Negative Supply Single Split Supply Operation Clamps Inputs Increase Ruggedness Device without Affecting Operation
SINGLE SUPPLY
SPLIT SUPPLIUES
3.0V VCC(max) 1.5V VCC(max)
1.5V VEE(max) VEE/ VEE/
www.gammamicro.com
PRELIMINARY
GM358
Revision May. 2004
GM358 MARKING INFORMATION CONFIGURATIONS (TOP VIEW)
SOP-8(SO
Output Input BInput Output
Input BInput
GM358 AYWW
Output Input
GM358 AYWW
VEE/ Input Output Input
VEE/ Input
Output
Output Input Input
Assemble Location Year Work weeks
Input Input VEE/
ORDERING INFORMATION
Ordering Number
GM358D8T GM358S8T GM358S8R
Package
DIP-8 SO-8 SO-8
Shipping
Units Tube Units Tube 2,500 Units /Tape &Reel
detail Ordering Number identification, please last page.
GM358
GM358
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Power Supply Voltage Single Supply Split Supllies Input Differential Voltage Range (Note Input Common Mode Voltage Range(Note Output Short Circuit Duration Junction Temperature Thermal Resistance, Junction (Note Operating Ambient Temperature Range Storage Temperature Range Tolerance Human Body Model (Note
SYMBOL
VCC, VIDR VICR RqJA TSTG
VALUE
Continuous +125 2000
UNIT
Note Split Power Supplies. Note Supply Voltages less absolute maximum input voltage equal supply voltage. Note RqJA Case 846A Note data avilable upon request.
GM358
GM358 ELECTRICAL CHARACTERISTICS
(VCC specified free temperature, unless otherwise specified) CHARACTERISTICS
Input Offset Voltage Average Temperature Coefficient Input Offset Voltage Input Offset Current Average Temperature Coefficient Input Offset Voltage Input Bias Current
SYMBOL
TEST CONDITIONS
VICRmin 1.4V 25°C Full range Full range 25°C Full range Full range 25°C Full range 25°C
Unit
-250 -500 VCC-1.5 VCC-2 VCC-1.5 µV/°C
aVIO
1.4V
aIIO
1.4V
Common-Mode Input Voltage Range
VICR
Full range (Note 25°C Full range Full range Full range 25°C Full range 25°C
High Level Output Voltage
VCC=MAX, RL=2kW VCC=MAX, 10kW
Level Output Voltage Large Signal Differential Voltage Amplification Common Mode Rejection Ration Supply Voltage Rejection Ration Crosstalk Attenuation
10kW
VCC=15V, VO=1V 11V,
CMRR
MAX, VICRmin 1kHz 20kHz 15V, 15V, =15V, 200mV,
kSVR VO1/
25°C 25°C 25°C Full range 25°C Full range 25°C 25°C Full range
Output Current
GM358
Short Circuit Output Current
2.5V, load
Supply current (two amplifiers)
MAX, 0.5VCC Full range load
characteristics measured under open loop conditions with zero common-mode input voltage unless otherwise specified. "MAX" testing purposes 30V. Full range 70°C. Note Only GM358
GM358
SCHEMATIC BLOCK DIAGRAM
Bias Circuitry Common both Amplifiers 5.0pF Inputs 2.0k 2.4k VEE/
Output
CIRCUIT DESCRIPTION
GM358 series made using internally compensated, stage operational amplifiers. first stage each consists differential input devices with input buffer transistors differential single ended converter first stage performs only first stage gain function also performs level shifting transconductance reduction functions. reducing transconductance, smaller compensation capacitor (only employed, thus saving chip area. transconductance reduction accomplished splitting collectors Q18. Another feature this input stage that input common mode range include negative supply ground, single supply operation, without saturating either input devices differential single ended converter. second stage consists standard current source load amplifier stage. Each amplifier biased from internal voltage regulator which temperature coefficient thus giving each amplifier good temperature characteristics well excellent power supply rejection.
GM358
GM358 Typical Performance Characteristics
Avol, Open loop Voltage Range (dB)
VOR, Output Voltage (mV)
25°C
=2.0W =15V =GND Gain=-100 =1.0KW =100kW
100k
1.0k
100k
1.0M
Frequency (kHZ)
1000
Frequency (HZ)
Figure Large-Signal Open Loop Voltage Gain
Figure Large Signal Frequency Response
ICC, Power Supply Current (mA)
Output Voltage (mV)
=30V =GND =25°C =50pF
Time(ms)
50pF
Input Output
=25°C
VCC, Power Supply Voltage
Figure Small Signal Voltage Follower Pulse Response (Noninverting)
Figure Power Supply Current versus Power Supply Voltage
IIB, Input Bias Current (nA)
GM358
VCC, Power Supply Voltage
Figure Input Bias Current versus Supply Voltage
GM358 TYPICAL APPLICATIONS
GM358
5.0k Vref
GM358
GM358
Vref=
GM358
For: 1.0kHz 16kW 0.01µF
Figure Wien Bridge Oscillator
Figure High Impedance Differential Amplifier
Hysteresis Vref
GM358
GM358
Vref) Vref VINH= vref) Vref VOL) VINL= Vref Given:
=10C Vref
VINL
VINH Vref
center frequency A(f0) gain center frequency
Choose value Then: A(f0)
Figure Comparator with Hysteresis
GM358
less than error from operational amplifier. Where expressed source impedance varies, filter preceded with voltage follower buffer stabilize filter parameter. Figure Multiple Feedback Bandpass Filter
*(Increase small) Figure Current Monitor
GM358
Figure Voltage Follower
GM358
1V(IL)
GM358
SOP-8(SO-8) PACKAGE OUTLINE DIMENSIONS
0.008 +0.0018 -0.0005
0.028
+0.022 -0.013 +0.56 -0.33
(0.20
+0.05 -0.01
(0.71
Layout
0.060 1.52
0.236 0.008
0.154
+0.003 -0.004
(5.99
+0.21 -0.20
0.275
0.155
INDENT
(3.91 0.1)
0.024
0.050 1.270
Inches
0.191
+0.004 -0.002 +0.10 -0.05
(4.85
0.063 0.005 (1.60 0.13)
0.057 (1.45)
Inches
0.0025 0.0015 (0.175 0.075)
0.050 (1.270)
0.016
+0.004 -0.003 +0.10 -0.08
(0.41
DIP-8 PACKAGE OUTLINE DIMENSIONS
0.26 0.006 (6.60
+0.16 -0.15
0.30
+0.015 -0.010
(7.62 +0.38 -0.25
0.36 0.01 (9.14
+0.26 -0.25
0.13
+0.006 -0.002
0.01
+0.003 -0.002
(0.25 +0.08 -0.05
0.365 0.02 9.27 0.51
(3.30 +0.15 -0.05
0.180 4.570
0.015 0.380
GM358
0.125 3.180
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 2.540
0.021 0.005 (0.53 +0.13 -0.12
Inches
GM358
ORDERING NUMBER
Gamma Micro. Circuit Type Package SO-8 DIP-8 Shipping Tape Reel
GM358

DUAL OPERATIONAL AMPLIFIER Power Management Utilizing circui

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