AD8202 Amplifier Datasheet

AD8202 Datasheet PDF, Equivalent


Part Number

AD8202

Description

Single-Supply Difference Amplifier

Manufacture

Analog Devices

Total Page 21 Pages
Datasheet
Download AD8202 Datasheet


AD8202
Data Sheet
High Common-Mode Voltage,
Single-Supply Difference Amplifier
AD8202
FEATURES
High common-mode voltage range
−6 V to +28 V at a 5 V supply voltage
Operating temperature range: −40°C to +125°C
Supply voltage range: 3.5 V to 12 V
Low-pass filter (1-pole or 2-pole)
Excellent ac and dc performance
±1 mV voltage offset
±1 ppm/°C typical gain drift
80 dB CMRR min dc to 10 kHz
Qualified for automotive applications
APPLICATIONS
Transmission control
Diesel injection control
Engine management
Adaptive suspension control
Vehicle dynamics control
GENERAL DESCRIPTION
The AD8202 is a single-supply difference amplifier for amplifying
and low-pass filtering small differential voltages in the presence of a
large common-mode voltage (CMV). The input CMV range
extends from −6 V to +28 V at a typical supply voltage of 5 V.
The AD8202 is available in die and packaged form. The MSOP
and SOIC packages are specified over a wide temperature range,
from −40°C to +125°C, making the AD8202 well-suited for use
in many automotive platforms.
Automotive platforms demand precision components for
better system control. The AD8202 provides excellent ac and
dc performance keeping errors to a minimum in the user’s
system. Typical offset and gain drift in the SOIC package are
0.3 µV/°C and 1 ppm/°C, respectively. Typical offset and gain
drift in the MSOP package are 2 µV/°C and 1 ppm/°C, respec-
tively. The device also delivers a minimum CMRR of 80 dB
from dc to 10 kHz.
The AD8202 features an externally accessible 100 kΩ resistor
at the output of the Preamp A1 that can be used for low-pass
filter applications and for establishing gains other than 20.
FUNCTIONAL BLOCK DIAGRAMS
+IN 8
–IN 1
200k
NC A1 A2
7 34
100k
G = ×10
+IN
A1
–IN
200k
+VS
6
AD8202
G = ×2
+IN
A2
–IN
10k
5 OUT
10k
NC = NO CONNECT
Figure 1. SOIC (R) Package Die Form
2
GND
BATTERY
CLAMP
DIODE
14V
4-TERM
SHUNT
INDUCTIVE
LOAD
5V
+IN NC +VS OUT
AD8202
OUTPUT
POWER
DEVICE
–IN GND A1 A2
BATTERY
COMMON
NC = NO CONNECT
Figure 2. High Line Current Sensor
POWER
DEVICE
5V
OUTPUT
+IN NC +VS OUT
14V
4-TERM
SHUNT
AD8202
–IN GND A1 A2
CLAMP
DIODE
INDUCTIVE
LOAD
COMMON
NC = NO CONNECT
Figure 3. Low Line Current Sensor
Rev. H
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AD8202
AD8202* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
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Documentation
Application Notes
• AN-1321: Common-Mode Transients in Current Sense
Applications
• AN-244: A User's Guide to I.C. Instrumentation Amplifiers
• AN-245: Instrumentation Amplifiers Solve Unusual Design
Problems
• AN-669: Effectively Applying the AD628 Precision Gain
Block
• AN-671: Reducing RFI Rectification Errors in In-Amp
Circuits
• AN-683: Strain Gage Measurement Using an AC Excitation
Data Sheet
• AD8202: High Common-Mode Voltage, Single-Supply
Difference Amplifier Data Sheet
Technical Books
• A Designer's Guide to Instrumentation Amplifiers, 3rd
Edition, 2006
Reference Materials
Technical Articles
• Auto-Zero Amplifiers
• Current Measurement in Solenoids for Automotive Control
Systems
• High-performance Adder Uses Instrumentation Amplifiers
Design Resources
• AD8202 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
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Technical Support
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Features Data Sheet High Common-Mode Voltage, Si ngle-Supply Difference Amplifier AD8202 FEATURES High common-mode voltage ran ge −6 V to +28 V at a 5 V supply volt age Operating temperature range: −40 C to +125°C Supply voltage range: 3.5 V to 12 V Low-pass filter (1-pole or 2 -pole) Excellent ac and dc performance ±1 mV voltage offset ±1 ppm/°C typic al gain drift 80 dB CMRR min dc to 10 k Hz Qualified for automotive application s APPLICATIONS Transmission control Die sel injection control Engine management Adaptive suspension control Vehicle dy namics control GENERAL DESCRIPTION The AD8202 is a single-supply difference am plifier for amplifying and low-pass fil tering small differential voltages in t he presence of a large common-mode volt age (CMV). The input CMV range extends from −6 V to +28 V at a typical suppl y voltage of 5 V. The AD8202 is availab le in die and packaged form. The MSOP a nd SOIC packages are specified over a w ide temperature range, from −40°C to +125°C, making the AD8.
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