Design and analysis of a feedback time difference amplifier with linear and programmable gain
Analog Integrated Circuits and Signal Processing(2017)
摘要
This paper proposes a feedback time difference amplifier (FTDA) that achieves linear, controllable gain and changeable input range for different time difference gains. The proposed FTDA consists of two identical feedback output generators. The feedback output generator achieves a linear input–output transfer characteristic by employing two p-type keepers for time gain feedback control. Its validity was demonstrated using 0.13 m SiGe BiCMOS process. The power consumption is 91.54 W for the highest gain with input signals at 2 MHz . The gain can be controlled from 25.06 to 734.9 s/s within 40 ps input time interval.
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关键词
Time amplification,Feedback technique,Time difference amplifier,Programmable gain,Linearity,Gain control,Time-to-digital converter
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