Published:2009/7/19 20:16:00 Author:Jessie | From:SeekIC
Inverting sample-and-hold circuit with gain equal to -R2/R1. The chip used is a Datel SHM-C-114-pin DIP. For a gain of-1 the bandwidth is one-half of that for the noninverting mode.R3 is equal to the parallel combination of R1 and R2 and is used to compensate for voltage offset caused by input bias current, R1 and R2 should be 100 PPM/℃ metal film resistors for a gain of -1. For high gains the ratio should be matched closely or trimmed with a small value carbon composition type resistor (courtesy Datel Systems, Inc.).
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