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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...
We present a low power radio frequency interference (RFI) mitigating receiver back-end application specific integrated circuit (ASIC). The ASIC includes an on-chip analog to digital converter (ADC) and a RFI detecting/mitigating digital signal processing (DSP) block. The ASIC is capable of processing signals with bandwidths exceeding 1.0GHz. The ADC has a 10-bit, 2 GS/s radiation-hard successive approximation...
This paper describes a feedback time difference amplifier (FTDA) with good linearity and high gain for coarse-fine time-to-digital converters. The symmetrical FTDA has two identical output generators. Each one consists of one SR-latch, one XOR gate, one buffer and two feedback P-type keepers. The improvement in linearity and time difference gain is achieved with two feedback paths based on meta-stability...
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