A 1.4 V switched capacitor filter
- 4 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 8.2/1-8.2/4
- https://doi.org/10.1109/cicc.1990.124687
Abstract
An approach to creating switched-capacitor circuits with supply voltages as low as 1.4 V is presented. The addition of one mask step creates an addition device type of low threshold. This device may be used both as a switch and in the amplifiers of switched capacitor circuits. A seventh order Chebyshev test circuit demonstrated performance approximating that of the more 5-10 V switched-capacitors filter circuits. By adding a second threshold adjustment implant mask for p-channel devices additional voltage reduction and performance improvement may be achievable.Keywords
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