Search International and National Patent Collections

1. (WO2018164818) DYNAMIC QUANTIZERS HAVING MULTIPLE RESET LEVELS

Pub. No.:    WO/2018/164818    International Application No.:    PCT/US2018/018255
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Thu Feb 15 00:59:59 CET 2018
IPC: H03K 5/00
Applicants: XILINX, INC.
Inventors: HUDNER, James
Title: DYNAMIC QUANTIZERS HAVING MULTIPLE RESET LEVELS
Abstract:
Various implementations are presented herein that improve the performance of dynamic quantizers over process, voltage and temperature ("PVT") and input common mode (Vcm) variations. This can be accomplished by separating and then varying the voltage supply (1 10) to the reset devices (170) connected to the input devices of the quantizer while leaving the supply to the other parts of the quantizer unchanged. The timing performance of the quantizer can be improved (reduced clock-to-q) by lowering the voltage supply to the reset devices. The input referred RMS noise and offset voltage of the circuit can be improved (reduced) by raising the voltage supply to the reset devices. Similarly, increases in Vcm due to process and voltage scaling can be mitigated by raising the voltage supply to the reset devices. Control systems are also provided herein to control the voltage supply to the reset devices to accomplish these and other objectives.