| 摘要 |
A single-DAC, multiple sample/hold conversion circuit includes a digital-to-analog converter and a plurality of sample/hold circuits each including an output amplifier, first and second hold capacitors coupled to inputs of the output amplifier and to terminals of and first and second sampling switches. An operational transconductance amplifier (OTA) has a first input coupled to an output of the digital-to-analog converter. A feedback switch is coupled between a second input of the OTA and the output of the output amplifier. A control circuit closes the feedback switch, first switch, and second switch of a sample/hold circuit selected according to an address input supplied to the control circuit.
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