Very Low Distortion, Dual-Channel,
High Precision Difference Amplifier
±4000 V HBM ESD
Very low distortion
0.00025% THD + N (20 kHz)
0.0015% THD + N (100 kHz)
Drives 600 Ω loads
Two gain settings
Gain of ½ (−6 dB)
Gain of 2 (+6 dB)
0.05% maximum gain error
10 ppm/°C maximum gain drift
Excellent ac specifications
20 V/μs minimum slew rate
800 ns to 0.01% settling time
High accuracy dc performance
77 dB minimum CMRR
700 μV maximum offset voltage
14-lead SOIC package
Supply current: 2.5 mA maximum per channel
Supply range: ±2.5 V to ±18 V
FUNCTIONAL BLOCK DIAGRAM
High performance audio
Instrumentation amplifier building blocks
Automatic test equipment
The AD8273 is a low distortion, dual-channel amplifier with
internal gain setting resistors. With no external components, it
can be configured as a high performance difference amplifier
(G = ½ or 2), inverting amplifier (G = ½ or 2), or noninverting
amplifier (G = 1½ or 3).
The AD8273 operates on both single and dual supplies and only
requires 2.5 mA maximum supply current for each amplifier. It
is specified over the industrial temperature range of −40°C to
+85°C and is fully RoHS compliant.
Table 1. Difference Amplifiers by Category
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