一种适合于高速、高精度ADC的采样/保持电路

A Take/Hold Circuit for High Speed & Resolution ADC

采用非复位结构，在SMIC0．18μm CMOS工艺下，设计并实现了一种采样／保持电路，其性能满足10位精度、100MS／s转换速率的ADC的要求．电路在0～125℃，三种工艺角下仿真，其性能均满足要求；T／H电路的核心—OTA，经流片并测试，结果表明其功能正确，功耗与仿真值一致。

Using non-reset architecture, a take/hold circuit for 10 bit 100 MS/s ADC is implemented in SMIC 0.18 μm CMOS process. Simulation result proved the implementation. The core of T/H eireuit-OTA is fabricated. The measured results have shown that the OTA works fluently and the power consumption is near that simulated.