AD8202YRZ-RL Analog Devices Inc, AD8202YRZ-RL Datasheet

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AD8202YRZ-RL

Manufacturer Part Number
AD8202YRZ-RL
Description
IC,Differential Amplifier,SINGLE,SOP,8PIN,PLASTIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD8202YRZ-RL

Amplifier Type
Differential
Number Of Circuits
1
Slew Rate
0.28 V/µs
Gain Bandwidth Product
50kHz
Current - Input Bias
40nA
Voltage - Input Offset
1000µV
Current - Supply
250µA
Voltage - Supply, Single/dual (±)
3.5 V ~ 12 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Current - Output / Channel
-
-3db Bandwidth
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
High common-mode voltage range
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
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 −8 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.
Rev. D
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.
−8 V to +28 V at a 5 V supply voltage
±1 mV voltage offset
±1 ppm/°C typical gain drift
80 dB CMRR min dc to 10 kHz
Single-Supply Difference Amplifier
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
+IN
–IN
BATTERY
BATTERY
High Common-Mode Voltage,
8
1
NC = NO CONNECT
200kΩ
FUNCTIONAL BLOCK DIAGRAMS
COMMON
14V
14V
CLAMP
CLAMP
DIODE
DIODE
200kΩ
NC
COMMON
7
Figure 1. SOIC (R) Package Die Form
Figure 2. High Line Current Sensor
Figure 3. Low Line Current Sensor
+IN
–IN
POWER
DEVICE
G = ×10
A1
4-TERM
4-TERM
SHUNT
SHUNT
© 2005 Analog Devices, Inc. All rights reserved.
100kΩ
A1
INDUCTIVE
LOAD
INDUCTIVE
LOAD
POWER
DEVICE
3
A2
+IN
+IN
–IN
–IN
4
AD8202
AD8202
GND
GND
NC
NC
+IN
–IN
G = ×2
A2
+V
+V
+V
5V
5V
6
A1
A1
NC = NO CONNECT
NC = NO CONNECT
S
S
S
AD8202
OUT
OUT
www.analog.com
A2
A2
10kΩ
10kΩ
AD8202
GND
2
OUTPUT
OUTPUT
5
OUT

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AD8202YRZ-RL Summary of contents

Page 1

FEATURES High common-mode voltage range − + supply voltage Operating temperature range: −40°C to +125°C Supply voltage range: 3 Low-pass filter (1-pole or 2-pole) Excellent ac and dc performance ...

Page 2

AD8202 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Specifications..................................................................................... 3 Single Supply ................................................................................. 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions............................. 5 Typical Performance Characteristics ............................................. ...

Page 3

SPECIFICATIONS SINGLE SUPPLY T = operating temperature range unless otherwise noted Table 1. Parameter Conditions SYSTEM GAIN Initial Error 0.02 ≤ V vs. Temperature VOLTAGE OFFSET Input Offset (RTI 0.15 V; 25°C ...

Page 4

AD8202 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage Transient Input Voltage (400 ms) Continuous Input Voltage (Common Mode) Reversed Supply Voltage Protection Operating Temperature Range Die SOIC MSOP Storage Temperature Output Short-Circuit Duration Lead Temperature Range (Soldering, 10 sec) ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic X 1 −IN −409.0 2 GND −244 +229 +410.0 5 OUT +410 +121 +IN −409.0 –IN ...

Page 6

AD8202 TYPICAL PERFORMANCE CHARACTERISTICS T = 25° kΩ, unless otherwise noted 100 1k FREQUENCY ...

Page 7

NO LOAD –20 –30 –40 10k LOAD –50 –60 – SUPPLY VOLTAGE (V) Figure 12. Output Minus Supply vs. Supply Voltage OUTPUT INPUT 1 2 CH1 500mVΩ CH2 50mVΩ M ...

Page 8

AD8202 SUPPLY TEMPERATURE RANGE = 9 25°C TO 85° DRIFT (μV/°C) OS Figure 18. Offset Drift Distribution, MSOP, Temperature Range = 25°C to 85° ...

Page 9

TEMPERATURE = –40° ERROR (%) Figure 24. MSOP Gain Accuracy, Temperature = −40° SUPPLY TEMPERATURE RANGE = 8 +25°C TO –40° ...

Page 10

AD8202 (μV) OS Figure 30. V Distribution, SOIC, Temperature = −40° TEMPERATURE RANGE = –40° 25° DRIFT (μV/°C) OS Figure ...

Page 11

TEMPERATURE = –40° ERROR (%) Figure 36. Gain Accuracy, SOIC, Temperature = −40° SUPPLY TEMPERATURE RANGE = 35 + 25°C TO –40° ...

Page 12

AD8202 THEORY OF OPERATION The AD8202 consists of a preamp and buffer arranged as shown in Figure 40. Like-named resistors have equal values. The preamp uses a dynamic bridge (subtractor) circuit. Identical networks (within the shaded areas), consisting of R ...

Page 13

SUPPLY TEMPERATURE RANGE = –120 +125°C TO –40°C –100 –80 –60 –40 – 0.5 1.0 1.5 DIFFERENTIAL-MODE VOLTAGE (V) Figure 41. A2 Input Bias Current vs. Input Voltage and Temperature. The Shaded Area is ...

Page 14

AD8202 APPLICATIONS The AD8202 difference amplifier is intended for applications that require extracting a small differential signal in the presence of large common-mode voltages. The differential input resistance is nominally 325 kΩ, and the device can tolerate common-mode voltages higher ...

Page 15

GAIN TRIM Figure 45 shows a method for incremental gain trimming by using a trim potentiometer and external resistor, R The following approximation is useful for small gain ranges: ΔG ≈ (10 MΩ/R )% EXT Thus, the adjustment range is ...

Page 16

AD8202 FREQUENCY 20dB/DECADE 40LOG ( 1-POLE FILTER, CORNER f , AND 1 A 2-POLE FILTER, CORNER f , HAVE 2 THE SAME ATTENUATION –40LOG ( FREQUENCY ...

Page 17

... Temperature Range AD8202YR −40°C to +125°C AD8202YR-REEL −40°C to +125°C AD8202YR-REEL7 −40°C to +125°C 1 AD8202YRZ −40°C to +125°C 1 AD8202YRZ-RL −40°C to +125°C 1 AD8202YRZ-R7 −40°C to +125°C AD8202YRMZ 1 −40°C to +125°C 1 AD8202YRMZ-RL −40°C to +125°C ...

Page 18

AD8202 NOTES Rev Page ...

Page 19

NOTES Rev Page AD8202 ...

Page 20

AD8202 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04981-0-11/05(D) Rev Page ...

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