← 返回 JSSC 论文列表JSSC 2013第6期Data Converters65nmSAR ADC
A Resolution-Reconfigurable 5-to-10-Bit 04-to-1 V Power Scalable SAR ADC for Sens
一种用于传感器应用的可重构5至10位SAR ADC，具有功率可扩展特性。
65nm CMOS, 0.4-1V, 5kS/s-2MS/s, 10-bit模式下FOM为22.4fJ/conversion-step
SAR ADC功率可扩展分辨率可重构传感器应用低功耗
▸可重构5至10位DAC，功率随分辨率指数级变化
▸利用电源电压缩放进一步降低每转换能量
▸在转换间采用泄漏功率门控技术降低总功耗
Abstract
A power-scalable SAR ADC for sensor applications
is presented. The ADC features a recon figurable 5-to-10-bit DAC
whose power scales exponentially with resolution. At low r esolu-
tions where noise and linearity r equirements are reduced, supply
voltage scaling is leveraged to further reduce the energy-per-con-
version. The ADC operates up to 2 MS/s at 1 V and 5 kS/ sa t0 . 4
V , and its power scales linearly with sample rate down to leakage
levels of 53 nW at 1 V and 4 nW at 0.4 V. Leakage power