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A 50 MHz CMOS differential amplifier channel for a laser range finding device

Tarmo Ruotsalainen, Juha Kostamovaara

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Abstract

An integrated CMOS differential amplifier channel consisting of a transimpedance preamplifier, postamplifiers and gain control circuitry has been designed for the receiver of a pulsed time-of-flight laser range finding device. The amplifier channel has a measured total transimpedance of Z/sub t//spl ap/1.27 M/spl Omega/ with a bandwidth of BW/spl ap/60 MHz and an input-referred noise current of i/sub ni//spl ap/4.5 pA//spl radic/(Hz).>

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What this paper is about

An integrated CMOS differential amplifier channel consisting of a transimpedance preamplifier, postamplifiers and gain control circuitry has been designed for the receiver of a pulsed time-of-flight laser range finding device. The amplifier channel has a measured total transimpedance of Z/sub t//spl ap/1.27 M/spl Omega/ with a bandwidth of BW/spl ap/60 MHz and an input-referred noise current of i/sub ni//spl ap/4.5 pA//spl radic/(Hz).>

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Available abstract

An integrated CMOS differential amplifier channel consisting of a transimpedance preamplifier, postamplifiers and gain control circuitry has been designed for the receiver of a pulsed time-of-flight laser range finding device. The amplifier channel has a measured total transimpedance of Z/sub t//spl ap/1.27 M/spl Omega/ with a bandwidth of BW/spl ap/60 MHz and an input-referred noise current of i/sub ni//spl ap/4.5 pA//spl radic/(Hz).>

Key concepts: Transimpedance amplifier, Preamplifier, CMOS, Differential amplifier, Amplifier, Electrical engineering, Bandwidth (computing), Physics

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