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OP297GSZ-REEL

Description
Op Amp Dual Precision Amplifier ±20V 8-Pin SOIC N T/R
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size321KB,17 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
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OP297GSZ-REEL Overview

Op Amp Dual Precision Amplifier ±20V 8-Pin SOIC N T/R

OP297GSZ-REEL Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.33.00.01
TypePrecision Amplifier
Manufacturer TypePrecision Amplifier
Number of Channels per Chip2
Maximum Input Offset Voltage (mV)0.2@±15V
Minimum Dual Supply Voltage (V)±2
Typical Dual Supply Voltage (V)±3|±5|±9|±12|±15|±18
Maximum Dual Supply Voltage (V)±20
Maximum Input Offset Current (uA)0.0002@±15V
Maximum Input Bias Current (uA)0.0002@±15V
Maximum Supply Current (mA)1.25@±15V
Power Supply TypeDual
Typical Slew Rate (V/us)0.15@±15V
Typical Input Noise Voltage Density (nV/rtHz)20@±15V
Typical Voltage Gain (dB)130.1
Typical Noninverting Input Current Noise Density (pA/rtHz)0.02@±15V
Minimum PSRR (dB)114
Minimum CMRR (dB)114
Minimum CMRR Range (dB)105 to 115
Typical Gain Bandwidth Product (MHz)0.5
Shut Down SupportNo
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
PackagingTape and Reel
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width4(Max)
PCB changed8
Lead ShapeGull-wing
Dual Low Bias Current
Precision Operational Amplifier
OP297
FEATURES
Low offset voltage: 50 μV maximum
Low offset voltage drift: 0.6 μV/°C maximum
Very low bias current: 100 pA maximum
Very high open-loop gain: 2000 V/mV minimum
Low supply current (per amplifier): 625 μA maximum
Operates from ±2 V to ±20 V supplies
High common-mode rejection: 120 dB minimum
PIN CONFIGURATION
OUTA
1
–INA
2
+INA
3
V–
4
A
B
8
7
6
5
V+
OUTB
00300-001
–INB
+INB
Figure 1.
APPLICATIONS
Strain gage and bridge amplifiers
High stability thermocouple amplifiers
Instrumentation amplifiers
Photocurrent monitors
High gain linearity amplifiers
Long-term integrators/filters
Sample-and-hold amplifiers
Peak detectors
Logarithmic amplifiers
Battery-powered systems
60
V
S
= ±15V
V
CM
= 0V
40
INPUT CURRENT (pA)
20
I
B
0
I
B
+
–20
I
OS
–40
–50
–25
The OP297 is the first dual op amp to pack precision perform-
ance into the space saving, industry-standard 8-lead SOIC
package. The combination of precision with low power and
extremely low input bias current makes the dual OP297 useful
in a wide variety of applications.
Precision performance of the OP297 includes very low offset
(less than 50 μV) and low drift (less than 0.6 μV/°C). Open-
loop gain exceeds 2000 V/mV, ensuring high linearity in every
application.
Errors due to common-mode signals are eliminated by the
common-mode rejection of over 120 dB, which minimizes
offset voltage changes experienced in battery-powered systems.
The supply current of the OP297 is under 625 μA.
The OP297 uses a super-beta input stage with bias current
cancellation to maintain picoamp bias currents at all tempera-
tures. This is in contrast to FET input op amps whose bias
currents start in the picoamp range at 25°C, but double for
every 10°C rise in temperature, to reach the nanoamp range
above 85°C. Input bias current of the OP297 is under 100 pA at
25°C and is under 450 pA over the military temperature range
per amplifier. This part can operate with supply voltages as low
as ±2 V.
0
25
50
TEMPERATURE (°C)
75
100
125
Figure 2. Low Bias Current over Temperature
400
1200 UNITS
T
A
= 25°C
V
S
= ±15V
V
CM
= 0V
300
NUMBER OF UNITS
200
100
–60
–40
–20
0
20
40
60
80
100
INPUT OFFSET VOLTAGE (µV)
Figure 3. Very Low Offset
Combining precision, low power, and low bias current, the
OP297 is ideal for a number of applications, including instru-
mentation amplifiers, log amplifiers, photodiode preamplifiers,
and long term integrators. For a single device, see the
OP97;
for
a quad device, see the
OP497.
Rev. G
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2008 Analog Devices, Inc. All rights reserved.
00300-003
0
–100 –80
00300-002
GENERAL DESCRIPTION
–60
–75

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Description Op Amp Dual Precision Amplifier ±20V 8-Pin SOIC N T/R Op Amp Dual Precision Amplifier ±20V 8-Pin PDIP N Tube Op Amp Dual Precision Amplifier ±20V 8-Pin PDIP N Tube Array/Network Resistor, Isolated, Thin Film, 0.16W, 1040ohm, 0.5% +/-Tol, -100,100ppm/Cel, 5030, Fixed Resistor, Thin Film, 0.125W, 40.2ohm, 150V, 0.1% +/-Tol, 10ppm/Cel, Surface Mount, 1206, CHIP Op Amp Dual Precision Amplifier ±20V 8-Pin SOIC N Tube
EU restricts the use of certain hazardous substances Compliant Compliant Compliant - - Compliant
ECCN (US) EAR99 EAR99 EAR99 - - EAR99
Part Status Active Active Active - - Active
HTS 8542.33.00.01 8542.33.00.01 8542.33.00.01 - - 8542.33.00.01
Type Precision Amplifier Precision Amplifier Precision Amplifier - - Precision Amplifier
Manufacturer Type Precision Amplifier Precision Amplifier Precision Amplifier - - Precision Amplifier
Number of Channels per Chip 2 2 2 - - 2
Maximum Input Offset Voltage (mV) 0.2@±15V 0.2@±15V 0.1@±15V - - 0.1@±15V
Minimum Dual Supply Voltage (V) ±2 ±2 ±2 - - ±2
Typical Dual Supply Voltage (V) ±3|±5|±9|±12|±15|±18 ±3|±5|±9|±12|±15|±18 ±3|±5|±9|±12|±15|±18 - - ±18|±3|±15|±12|±9|±5
Maximum Dual Supply Voltage (V) ±20 ±20 ±20 - - ±20
Maximum Input Offset Current (uA) 0.0002@±15V 0.0002@±15V 0.00015@±15V - - 0.00015@±15V
Maximum Input Bias Current (uA) 0.0002@±15V 0.0002@±15V 0.00015@±15V - - 0.00015@±15V
Maximum Supply Current (mA) 1.25@±15V 1.25@±15V 1.25@±15V - - 1.25@±15V
Power Supply Type Dual Dual Dual - - Dual
Typical Slew Rate (V/us) 0.15@±15V 0.15@±15V 0.15@±15V - - 0.15@±15V
Typical Input Noise Voltage Density (nV/rtHz) 20@±15V 20@±15V 20@±15V - - 20@±15V
Typical Voltage Gain (dB) 130.1 130.1 130.1 - - 130.1
Typical Noninverting Input Current Noise Density (pA/rtHz) 0.02@±15V 0.02@±15V 0.02@±15V - - 0.02@±15V
Minimum PSRR (dB) 114 114 114 - - 114
Minimum CMRR (dB) 114 114 114 - - 114
Minimum CMRR Range (dB) 105 to 115 105 to 115 105 to 115 - - 105 to 115
Typical Gain Bandwidth Product (MHz) 0.5 0.5 0.5 - - 0.5
Shut Down Support No No No - - No
Minimum Operating Temperature (°C) -40 -40 -40 - - -40
Maximum Operating Temperature (°C) 85 85 85 - - 85
Packaging Tape and Reel Tube Tube - - Tube
Pin Count 8 8 8 - - 8
Standard Package Name SOP DIP DIP - - SOP
Supplier Package SOIC N PDIP N PDIP N - - SOIC N
Mounting Surface Mount Through Hole Through Hole - - Surface Mount
Package Height 1.5(Max) 3.3 3.3 - - 1.5(Max)
Package Length 5(Max) 9.27 9.27 - - 5(Max)
Package Width 4(Max) 6.35 6.35 - - 4(Max)
PCB changed 8 8 8 - - 8
Lead Shape Gull-wing Through Hole Through Hole - - Gull-wing
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