Title :
An auto-ranging photodiode preamplifier with 114 dB dynamic range
Author :
Hoe, David H K ; Ribner, David B.
Author_Institution :
Gen. Electr. Corp. Res. & Dev. Center, Schenectady, NY, USA
fDate :
2/1/1996 12:00:00 AM
Abstract :
A low noise photodiode preamplifier integrated circuit with auto-ranging gain capability has been designed, fabricated, and tested. When connected to a 25 pF input capacitance, the four-channel device has an input referred noise below 0.5 fC, which is just 3 dB above the minimum kTC noise. The preamp chip is designed to handle a full-scale charge input of 210 pC and has a 114 dB dynamic range. The device achieves a linearity specification of 0.01% of input reading ±0.25 ppm of full scale with a sample period of 1 ms. The chip consumes 135 mW and is 5.8 mm×7.4 mm in size
Keywords :
analogue integrated circuits; integrated circuit noise; photodiodes; preamplifiers; auto-ranging gain; dynamic range; four-channel device; full-scale charge input; input referred noise; linearity; low noise photodiode preamplifier integrated circuit; Capacitance; Circuits; Dynamic range; Linearity; Noise level; Photodiodes; Preamplifiers; Quantization; Signal resolution; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
