Difference Amplifier. AD8271 Datasheet

AD8271 Amplifier. Datasheet pdf. Equivalent

Part AD8271
Description Programmable Gain Precision Difference Amplifier
Feature www.DataSheet4U.com Programmable Gain Precision Difference Amplifier AD8271 FUNCTIONAL BLOCK DIAGRA.
Manufacture Analog Devices
Datasheet
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AD8271
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FEATURES
With no external resistors
Difference amplifier, gains of ½, 1, or 2
Single-ended amplifier: over 40 different gains
Set reference voltage at midsupply
Excellent ac specifications
15 MHz bandwidth
30 V/μs slew rate
High accuracy dc performance
0.08% maximum gain error
10 ppm/°C maximum gain drift
80 dB minimum CMRR (gain of 2)
10-lead MSOP package
Supply current: 2.6 mA
Supply range: ±2.5 V to ±18 V
APPLICATIONS
ADC driver
Instrumentation amplifier building blocks
Level translators
Automatic test equipment
High performance audio
Sine/cosine encoders
GENERAL DESCRIPTION
The AD8271 is a low distortion, precision difference amplifier
with internal gain setting resistors. With no external components,
it can be configured as a high performance difference amplifier
with gains of ½, 1, or 2. It can also be configured in over 40 single-
ended configurations, with gains ranging from −2 to +3.
The AD8271 comes in a 10-lead MSOP package. The AD8271
operates on both single and dual supplies and requires only a
2.6 mA maximum supply current. It is specified over the industrial
temperature range of −40°C to +85°C and is fully RoHS compliant.
For a dual channel version of the AD8271, see the AD8270
data sheet.
Programmable Gain
Precision Difference Amplifier
AD8271
FUNCTIONAL BLOCK DIAGRAM
P1 1
2
P2
P3 3
P4 4
10k
10k
20k
20k
10k
10k
10k
10 N3
9
N2
8 N1
OUT
7
–VS 5
AD8271
Figure 1.
6 +VS
Table 1. Difference Amplifiers by Category
High
Speed
AD8270
AD8273
AD8274
AMP03
High
Voltage
AD628
AD629
Single-Supply
Unidirectional
AD8202
AD8203
Single-Supply
Bidirectional
AD8205
AD8206
AD8216
Rev. 0
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2009 Analog Devices, Inc. All rights reserved.



AD8271
AD8271www.DataSheet4U.com
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
Functional Block Diagram .............................................................. 1 
General Description ......................................................................... 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Difference Amplifier Configurations ........................................ 3 
Absolute Maximum Ratings............................................................ 6 
Thermal Resistance ...................................................................... 6 
Maximum Power Dissipation ..................................................... 6 
ESD Caution.................................................................................. 6 
Pin Configuration and Function Description .............................. 7 
Typical Performance Characteristics ............................................. 8 
Operational Amplifier Plots...................................................... 14 
Theory of Operation ...................................................................... 15 
REVISION HISTORY
1/09—Revision 0: Initial Version
Circuit Information.................................................................... 15 
Driving the AD8271................................................................... 15 
Power Supplies ............................................................................ 15 
Input Voltage Range................................................................... 15 
Applications Information .............................................................. 16 
Difference Amplifier Configurations ...................................... 16 
Single-Ended Configurations ................................................... 17 
Kelvin Measurement .................................................................. 18 
Instrumentation Amplifier........................................................ 18 
Driving Cabling .......................................................................... 19 
Driving an ADC ......................................................................... 19 
Outline Dimensions ....................................................................... 20 
Ordering Guide .......................................................................... 20 
Rev. 0 | Page 2 of 20







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