AD8200_15 Datasheet, PDF (1/12 Pages) Analog Devices – High Common-Mode Voltage, Single-Supply Difference Amplifier

High Common-Mode Voltage, Single-Supply
Difference Amplifier
AD8200
FEATURES
FUNCTIONAL BLOCK DIAGRAM
High Common-Mode Voltage Range –2 V to +24 V at a
SOIC (R) Package
5 V Supply Voltage
Die Form
Operating Temperature Range
Die: –40؇C to +150؇C
NC
A1 A2
+V_S
Supply Voltage Range: 4.7 V to 12 V
Low-Pass Filter (One Pole or Two Pole)
AD8200
EXCELLENT AC AND DC PERFORMANCE
؎1 mV Voltage Offset
؎10 ppm/؇C Typ Gain Drift
80 dB CMRR Min DC to 10 kHz
PLATFORMS
E _{Transmission Control}
Diesel Injection Control
Engine Management
T Adaptive Suspension Control
Vehicle Dynamics Control
+IN
–IN
200k⍀
100k⍀
G =؋10
+IN
A1
–IN
200k⍀
NC = NO CONNECT
G =؋2
+IN
A2
–IN
10k⍀
10k⍀
OUT
GND
E ^{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
L _{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
O 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.
BS ^BATTERY
CLAMP
DIODE
14V
4 TERM
SHUNT
INDUCTIVE
LOAD
5V
+IN NC +V_S OUT
AD8200
OUTPUT
O^POWER
–IN GND A1 A2
BATTERY 14V
POWER
DEVICE
5V
+IN NC +V_S OUT
OUTPUT
4 TERM
SHUNT
AD8200
–IN GND A1 A2
DEVICE
CLAMP
DIODE
INDUCTIVE
LOAD
COMMON
NC = NO CONNECT
Figure 1. High Line Current Sensor
COMMON
NC = NO CONNECT
Figure 2. Low Line Current Sensor
REV. B
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