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A dual-channel CMOS transimpedance amplifier array with automatic gain control for unmanned vehicle LADARs

Title
A dual-channel CMOS transimpedance amplifier array with automatic gain control for unmanned vehicle LADARs
Authors
Hong C.Park S.M.
Ewha Authors
박성민
SCOPUS Author ID
박성민scopus
Issue Date
2016
Journal Title
Transactions of the Korean Institute of Electrical Engineers
ISSN
1975-8359JCR Link
Citation
vol. 65, no. 5, pp. 831 - 835
Keywords
AGCCMOSDynamic rangeFeedforwardLADARTIA
Publisher
Korean Institute of Electrical Engineers
Indexed
SCOPUS; KCI scopus
Abstract
In this paper, a dual-channel feed-forward transimpedance(TIA) array is realized in a standard 0.18-μm CMOS technology which exploits automatic gain control function to provide 40-dB input dynamic range for either detecting targets nearby or sensing imminent danger situations. Compared to the previously reported conventional feed-forward TIA, the proposed automatic-gain-control feed-forward TIA(AFF-TIA) extends the input dynamic range 25 dB wider by employing a 4-level automatic gain control circuit. Measured results demonstrate the linearly varying transimpedance gain of 47 to 72 dBΩ, input dynamic range of 1:100, the bandwidth of ≧670 MHz, the equivalent input referred noise current spectral density of 6.9 pA/VHZ, the maximum sensitivity of - 26.8 dBm for 10-12 BER, and the power consumption of 27.6 mW from a single 1.8-V supply. The dual-channel chip occupies the area of 1.0 × 0.73 mm2 including I/O pads. Copyright © The Korean Institute of Electrical Engineers.
DOI
10.5370/KIEE.2016.65.5.831
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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