Kickback noise reduction techniques for CMOS latched comparators

Patrícia Figueiredo; J.C. Vital

doi:10.1109/tcsii.2006.875308

July 1, 2006IEEE Transactions on Circuits and Systems II Analog and Digital Signal Processing

Kickback noise reduction techniques for CMOS latched comparators

View at Publisher

Ask AI

Bookmark

Share

Key Points

To evaluate existing kickback noise reduction strategies and develop novel circuit techniques that minimize input disturbance in CMOS latched comparators.
Reviewed conventional circuit topologies designed to suppress kickback noise in regenerative comparators.
Introduced two novel circuit configurations designed to prevent internal node voltage swings from coupling to comparator input terminals.
Evaluated circuit performance using HSPICE simulations modeled in a standard 0.18-μm CMOS process technology.
The two proposed comparator topologies effectively mitigated kickback noise compared to standard architectures.
HSPICE simulations confirmed successful regeneration of analog input signals to full-scale digital levels while maintaining suppressed disturbance at the input nodes.

Ask about this paper

Answers are grounded in this paper and cite their sources.

Implication

Circuit simulation study demonstrates kickback noise reduction techniques in 0.18-micrometer CMOS latched comparators, highlighting improved input signal integrity for analog-to-digital converters.

Abstract

The latched comparator is a building block of virtually all analog-to-digital converter architectures. It uses a positive feedback mechanism to regenerate the analog input signal into a full-scale digital level. The large voltage variations in the internal nodes are coupled to the input, disturbing the input voltage-this is usually called kickback noise. This brief reviews existing solutions to minimize the kickback noise and proposes two new ones. HSPICE simulations of comparators implemented in a 0.18-/spl mu/m technology demonstrate their effectiveness.

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Figueiredo et al. (2006) studied this question.

synapsesocial.com/papers/6a01f2706668471b61d8b0f8 https://doi.org/10.1109/tcsii.2006.875308

View at Publisher

Ask AI

Bookmark

Share

Kickback noise reduction techniques for CMOS latched comparators

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Kickback noise reduction techniques for CMOS latched comparators

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Keep reading

Keep reading