+12V single supply sampling instrument amplifier circuit with protective driver composed of SMP04 and instrument amplifier

Published:2012/8/28 2:39:00 Author:Ecco | Keyword: +12V, single supply , sampling instrument , amplifier , protective driver , instrument amplifier | From:SeekIC

The circuit also uses the two channels of sample and hold amplifier SMP04 to constitute differential sampling with instrumentation amplifier AMP02. The signal is input (±) to SMP04, then it is differential amplified and output after being sampling and holding by AMP02. The other two sample-and-hold amplifiers' control terminal S / H are always grounded to keep the sample state. One is used to drive shielded cable to protect it from the interference from common-mode voltage; the other one is used to provide +6 V reference voltage for AMP02.



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