OP297FSZ datasheet, PDF - EEWORLD Datasheet

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OP297FSZ: DescriptionOp Amp Dual Precision Amplifier ±20V 8-Pin SOIC N Tube; CategoryAnalog mixed-signal IC Amplifier circuit; File Size321KB，17 Pages; ManufacturerADI; Websitehttps://www.analog.com; Environmental Compliance

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OP297FSZ Overview

Op Amp Dual Precision Amplifier ±20V 8-Pin SOIC N Tube

OP297FSZ Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.33.00.01
Type	Precision Amplifier
Manufacturer Type	Precision Amplifier
Number of Channels per Chip	2
Maximum Input Offset Voltage (mV)	0.1@±15V
Minimum Dual Supply Voltage (V)	±2
Typical Dual Supply Voltage (V)	±18\|±3\|±15\|±12\|±9\|±5
Maximum Dual Supply Voltage (V)	±20
Maximum Input Offset Current (uA)	0.00015@±15V
Maximum Input Bias Current (uA)	0.00015@±15V
Maximum Supply Current (mA)	1.25@±15V
Power Supply Type	Dual
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 Support	No
Minimum Operating Temperature (°C)	-40
Maximum Operating Temperature (°C)	85
Packaging	Tube
Pin Count	8
Standard Package Name	SOP
Supplier Package	SOIC N
Mounting	Surface Mount
Package Height	1.5(Max)
Package Length	5(Max)
Package Width	4(Max)
PCB changed	8
Lead Shape	Gull-wing

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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

–INA

+INA

V–

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

= ±15V

= 0V

INPUT CURRENT (pA)

–

–20

–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.

TEMPERATURE (°C)

100

125

Figure 2. Low Bias Current over Temperature

400

1200 UNITS

= 25°C

= ±15V

= 0V

300

NUMBER OF UNITS

200

100

–60

–40

–20

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

00300-003

–100 –80

00300-002

GENERAL DESCRIPTION

–60

–75

OP297

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications ....................................................................................... 1

General Description ......................................................................... 1

Pin Configuration ............................................................................. 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Electrical Characteristics ............................................................. 3

Absolute Maximum Ratings............................................................ 4

Thermal Resistance ...................................................................... 4

ESD Caution .................................................................................. 4

Typical Performance Characteristics ............................................. 5

Applications Information ................................................................ 9

AC Performance ............................................................................9

Guarding and Shielding ................................................................9

Open-Loop Gain Linearity ....................................................... 10

Application Circuits ....................................................................... 11

Precision Absolute Value Amplifier ......................................... 11

Precision Current Pump ............................................................ 11

Precision Positive Peak Detector .............................................. 11

Simple Bridge Conditioning Amplifier ................................... 11

Nonlinear Circuits ...................................................................... 12

Outline Dimensions ....................................................................... 13

Ordering Guide .......................................................................... 14

REVISION HISTORY

4/08—Rev. F to Rev. G

Changes to Table 2 Conditions ....................................................... 3

Changes to Table 2 Power Supply Rejection Parameter .............. 3

Changes to Figure 5, Figure 6, Figure 7 ......................................... 5

Changes to Figure 16 ........................................................................ 6

Updated Outline Dimensions ....................................................... 13

Changes to Ordering Guide .......................................................... 14

2/06—Rev. E to Rev. F

Updated Format .................................................................. Universal

Changes to Features.......................................................................... 1

Deleted OP297 Spice Macro Model Section ................................. 9

Updated Outline Dimensions ....................................................... 13

Changes to Ordering Guide .......................................................... 14

7/03—Rev. D to Rev. E

Changes to TPCs 13 and 16 ............................................................ 4

Edits to Figures 12 and 14 ............................................................... 8

Changes to Nonlinear Circuits Section ......................................... 8

10/02—Rev. C to Rev. D

Edits to Figure 16 ...............................................................................6

10/02—Rev. B to Rev. C

Edits to Specifications .......................................................................2

Deleted Wafer Test Limits ................................................................3

Deleted Dice Characteristics ............................................................3

Deleted Absolute Maximum Ratings ..............................................4

Edits to Ordering Guide ...................................................................4

Updated Outline Dimensions ....................................................... 12

Rev. G | Page 2 of 16

OP297FSZ Related Products

	OP297FSZ	OP297GSZ-REEL	OP297GPZ	OP297FPZ	GUB-GL0ALF-01-1041-D-C	PCF1206-12-40R2BI
Description	Op Amp Dual Precision Amplifier ±20V 8-Pin SOIC N Tube	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
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)	0.1@±15V	0.2@±15V	0.2@±15V	0.1@±15V	-	-
Minimum Dual Supply Voltage (V)	±2	±2	±2	±2	-	-
Typical Dual Supply Voltage (V)	±18\|±3\|±15\|±12\|±9\|±5	±3\|±5\|±9\|±12\|±15\|±18	±3\|±5\|±9\|±12\|±15\|±18	±3\|±5\|±9\|±12\|±15\|±18	-	-
Maximum Dual Supply Voltage (V)	±20	±20	±20	±20	-	-
Maximum Input Offset Current (uA)	0.00015@±15V	0.0002@±15V	0.0002@±15V	0.00015@±15V	-	-
Maximum Input Bias Current (uA)	0.00015@±15V	0.0002@±15V	0.0002@±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	Tube	Tape and Reel	Tube	Tube	-	-
Pin Count	8	8	8	8	-	-
Standard Package Name	SOP	SOP	DIP	DIP	-	-
Supplier Package	SOIC N	SOIC N	PDIP N	PDIP N	-	-
Mounting	Surface Mount	Surface Mount	Through Hole	Through Hole	-	-
Package Height	1.5(Max)	1.5(Max)	3.3	3.3	-	-
Package Length	5(Max)	5(Max)	9.27	9.27	-	-
Package Width	4(Max)	4(Max)	6.35	6.35	-	-
PCB changed	8	8	8	8	-	-
Lead Shape	Gull-wing	Gull-wing	Through Hole	Through Hole	-	-

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