AD8216_15 Datasheet, PDF (1/16 Pages) Analog Devices – High Bandwidth, Bidirectional 65 V Difference Amplifier

Data Sheet
FEATURES
±4000 V HBM ESD
Ideal for current shunt applications
High common-mode voltage range
−4 V to +65 V operating
−40 V to +80 V survival
3 MHz bandwidth
<100 ns output propagation delay
Gain: 3 V/V
Wide operating temperature range
Die: −40°C to +150°C
8-lead SOIC: −40°C to +125°C
Adjustable output offset
Available in 8-lead SOIC
Excellent ac and dc performance
10 μV/°C offset drift
10 ppm/°C gain drift
Qualified for automotive applications
APPLICATIONS
High-side current sensing in
DC-to-dc converters
Motor controls
Transmission controls
Diesel-injection controls
Engine management
Suspension controls
Vehicle dynamic controls
GENERAL DESCRIPTION
The AD8216 is a single-supply, difference amplifier ideal for
amplifying small differential voltages in the presence of large
common-mode voltages. The operating input common-mode
voltage range extends from −4 V to +65 V. The typical supply
voltage is 5 V. The AD8216 features a 3 MHz bandwidth,
allowing for the input-to-output propagation delay that is
always less than 150 ns. This feature is ideal for applications
monitoring rapidly increasing and decreasing load currents.
The AD8216 is offered in a SOIC package. The operating
temperature range is −40°C to +125°C.
High Bandwidth, Bidirectional
65 V Difference Amplifier
AD8216
FUNCTIONAL BLOCK DIAGRAM
V+
6
+IN 8
–IN 1
5 OUT
AD8216
7 V_REF1
NC 4
NC = NO CONNECT
2
GND
Figure 1.
3 V_REF2
Excellent ac and dc performance over temperature keep errors
in the measurement loop to a minimum. Offset and gain drift
are guaranteed to a maximum of 20 μV/°C and 15 ppm/°C,
respectively.
The output offset can be adjusted from 0.06 V to 4.9 V with a
5 V supply by using the VREF1 pin and the VREF2 pin. With the
VREF1 pin attached to the V+ pin and the VREF2 pin attached to
the GND pin, the output is set at half scale. Attaching both VREF1
and VREF2 to GND causes the output to be unipolar, starting
near ground. Attaching both VREF1 and VREF2 to V+ causes the
output to be unipolar, starting near V+. Other offsets can be
obtained by applying an external voltage to VREF1 and VREF2.
Rev. B
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