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A 0.5-V 1-Msps Track-and-Hold Circuit With 60-dB SNDR

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2 Author(s)
Chatterjee, S. ; Columbia Univ., New York, NY ; Kinget, P.R.

We discuss a design technique that makes possible the operation of track-and-hold (T/H) circuits with very low supply voltages, down to 0.5 V. A 0.5-V 1-Msps T/H circuit with a 60-dB SNDR is presented. The fully differential circuit is fabricated in the CMOS part of a 0.25-mum BiCMOS process, with standard 0.6-V VT devices, and uses true low-voltage design techniques with no clock boosting and no voltage boosting. The T/H circuit has a measured current consumption of 600 muA

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:42 ,  Issue: 4 )