Invention Grant
US08692701B2 Pipelined A/D converter circuit provided with A/D converter circuit parts of stages each including precharge circuit 失效
配有A / D转换器电路的流水线A / D转换电路各部分包括预充电电路

Pipelined A/D converter circuit provided with A/D converter circuit parts of stages each including precharge circuit
Abstract:
A pipelined A/D converter circuit includes a sample hold circuit configured to sample and hold an analog input signal, and output a sample hold signal, and an A/D converter circuit including A/D converter circuit parts connected to each other in cascade, and performs A/D conversion in a pipelined form. The pipelined A/D converter circuit part of each stage includes a sub-A/D converter circuit, a multiplier D/A converter circuit, and a precharge circuit. The sub-A/D converter circuit includes comparators, and A/D convert the input signal into a digital signal of predetermined bits, a multiplier D/A converter circuit for D/A converting the digital signal from the sub-A/D converter circuit into an analog control signal generated with a reference voltage served as a reference value, sample, hold and amplify the input signal by sampling capacitors based on the analog control signal.
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