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A 08-V 230- W 98-dB DR Inverter-Based Modulator for Audio Applications Hao Luo Y
提出一种基于增益提升C类反相器的音频调制器，适用于低电压微功耗高分辨率应用。
65nm CMOS, 0.8V, 5MHz采样频率, 230μW功耗, 98dB动态范围
增益提升C类反相器低电压微功耗高分辨率
▸增益提升C类反相器作为低电压亚阈值放大器
▸片上体偏置补偿性能退化
▸适用于低电压微功耗高分辨率应用
Abstract
This paper presents a modulator based on a
gain-boost class-C inverter for audi o applications. The gain-boost
class-C inverter behaves as a low-voltage subthreshold ampli fier
and boosts its dc gain for the high-precision requirement. Mean-
while, an on-chip body bias is use d to compensate the performance
degradation of the inverter at a slow process corner or low supply
voltage. The proposed inverter-ba sed modulator is fabricated in a
65-nm mixed-signal CMOS process with a die area of 0.3 mm