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+12V single supply sampling instrument amplifier circuit wit

2015-01-03 14:53  
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+12V single supply sampling instrument amplifier circuit with protective driver composed of SMP04 and instrument amplifier
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.