By Topic

Low-power offset-cancellation switched-capacitor correlated double sampling bandgap reference

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $33
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Jianguang Chen ; Shanghai Research Institute of MicroEletronics, Peking University, People's Republic of China ; Gaolin Li ; Yuhua Cheng

A low-power offset-cancellation switched capacitor bandgap reference for a tyre pressure monitor system is proposed. It employs a correlated double sampling switched-capacitor amplifier with opamp offset voltage cancellation without requiring the output to slew to ground each time the amplifier is reset. Additionally the circuit topology is very insensitive to low opamp gain and allows a simple single-stage opamp structure. This structure also has clock feedthrough cancellation and is very suitable for low-power application owing to its small slew rate and low opamp gain requirement. Moreover, coarse and fine process calibration techniques are applied to minimise the process deviation. Simulation results are provided to verify the effectiveness of the topology.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 14 )