Instrumentation amp offers low drift
Offered as the industry's lowest-drift instrumentation amplifier, the
AD621 has a maximum gain drift of 5 ppm/ degreesC and a voltage offset
drift of 0.6 microvolts/ degreesC. In addition, it has a maximum
nonlinearity of 10 ppm of full scale, an initial offset voltage of 50
microvolts, and a gain error of 0.05%. The AD621 has pin-strappable gains
of 10 and 100, an input voltage noise of 9 nV/
current noise of 0.1 pA/
to 0.01%. The device uses a maximum current of 1.3 mA from +/-2.3 to
+/-18-V supplies. It is available in 8-pin plastic DIPs, CerDIPs, and SO
packages. (From $3.82 ea/1,000–stock.) Analog Devices, Inc., Norwood,
MA Information 617-937-1428 Fax 617-821-4273
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