AD8200 Datasheet, PDF (1/8 Pages) Analog Devices – High Common-Mode Voltage, Single Supply Difference Amplifier

a High Common-Mode Voltage, Single Supply
Difference Amplifier
FEATURES
High Common-Mode Voltage Range –2 V to +24 V at a
5 V Supply Voltage
Operating Temperature Range
Die: –40؇C to +150؇C
8-Lead SOIC: –40؇C to +125؇C
Supply Voltage Range: 4.7 V to 12 V
Low-Pass Filter (One Pole or Two Pole)
EXCELLENT AC AND DC PERFORMANCE
15 ␮V/؇C Max Offset Drift
20 ppm/؇C Max Gain Drift
80 dB CMRR Min DC to 10 kHz
PLATFORMS
Transmission Control
Diesel Injection Control
Engine Management
Semi-Active Suspension Control
Vehicle Dynamics Control
AD8200
FUNCTIONAL BLOCK DIAGRAM
SOIC (R) Package
DIE Form
+IN
–IN
200k⍀
NC
A1 A2
+V_S
100k⍀
G = X10
+IN
A1
–IN
200k⍀
AD8200
G = X2
+IN
A2
–IN
10k⍀
OUT
10k⍀
NC = NO CONNECT
GND
GENERAL DESCRIPTION
The AD8200 is a single-supply difference amplifier for amplifying
and low-pass filtering small differential voltages in the presence
of a large common-mode voltage. The input CMV range extends
from –2 V to +24 V at a typical supply voltage of 5 V.
The AD8200 is offered in die and packaged form. Both package
options are specified over wide temperature ranges, making the
AD8200 well suited for use in many automotive platforms. The
SOIC package is specified over a temperature range of –40°C to
+125°C. The die is specified from –40°C to +150°C.
Automotive platforms demand precision components for better
system control. The AD8200 provides excellent ac and dc per-
formance that keeps errors to a minimum in the user’s system.
Typical offset and gain drift in the SOIC package are 6 µV/°C
and 10 ppm/°C, respectively. The device also delivers a mini-
mum CMRR of 80 dB from dc to 10 kHz.
The AD8200 features an externally accessible 100 kΩ resistor at
the output of the preamp A1, which can be used for low-pass
filter applications, and for establishing gains other than 20.
CLAMP
DIODE
INDUCTIVE
LOAD
5V
BATTERY 14V
4 TERM
SHUNT
POWER
DEVICE
+IN NC +V_S OUT
AD8200
–IN GND A1 A2
OUTPUT
BATTERY 14V
POWER
DEVICE
5V
4 TERM
SHUNT
+IN NC +V_S OUT
AD8200
–IN GND A1 A2
OUTPUT
CLAMP
DIODE
INDUCTIVE
LOAD
COMMON
NC = NO CONNECT
Figure 1. High-Line Current Sensor
REV. 0
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
COMMON
NC = NO CONNECT
Figure 2. Low-Line Current Sensor
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© Analog Devices, Inc., 2000