Title :
A novel low-voltage switched-capacitor input branch
Author_Institution :
Mixed-Signal Design Group, Qualcomm Inc., San Diego, CA, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
A novel switched-capacitor (SC) input branch is proposed for low-voltage applications. This circuit can be used at the very first input providing external signals. It not only eliminates the problem of a floating switch from the signal path, but also reduces circuit complexities of earlier low-voltage input branches. This is achieved by modifying the common SC branch. In the proposed configuration, there is no need for a boosted-clock voltage, a switched-opamp method, or a reset-opamp technique.
Keywords :
CMOS analogue integrated circuits; SPICE; circuit complexity; circuit simulation; low-power electronics; switched capacitor networks; CMOS analog integrated circuits; Hspice simulations; circuit complexity; external signals; floating switch problem elimination; low-voltage switched-capacitor input branch; mixed-signal design; CMOS digital integrated circuits; CMOS technology; Capacitors; Clocks; Complexity theory; Digital circuits; Low voltage; Sampling methods; Switches; Switching circuits;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
DOI :
10.1109/TCSII.2003.811440
