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Chap 2. Operational amplifiers (op-amps)

Chap 2. Operational amplifiers (op-amps). Circuit symbol of an op-amp. Widely used Often requires 2 power supplies + V Responds to difference between two signals. 2.2 Ideal op-amp. Characteristics of an ideal op-amp R in = infinity R out = 0

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CMOS Comparator

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Filtering

Filtering. General medical device. gain. sensor. filter. v. gain. Further processing, display, etc. anti-aliasing filter. ADC. Biopotential amplitudes and frequency ranges. Low pass. High pass. 1 st order high pass filter. 1 st order low pass filter. 2 nd order band pass filter.

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