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High-gain differential CMOS transimpedance amplifier with on-chip buried double junction photodiode

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3 Author(s)
Xu, W. ; Dept. of Syst. & Ind. Eng., Univ. of Arizona, Tucson, AZ, USA ; Mathine, D.L. ; Barton, J.K.

An integrated fully differential CMOS transimpedance amplifier (TIA) with buried double junction photodiode input is described. The TIA features a variable high transimpedance gain (250 kΩ to 2.5 MΩ), large DC photocurrent rejection capability (>55 dB) and low input referred noise density at 100 kHz (2pA/√Hz).

Published in:

Electronics Letters  (Volume:42 ,  Issue: 14 )