Dynamic Offset Compensated CMOS Amplifiers
Author | : Frerik Witte |
Publisher | : Springer Science & Business Media |
Total Pages | : 178 |
Release | : 2009-06-29 |
ISBN-10 | : 9789048127566 |
ISBN-13 | : 9048127564 |
Rating | : 4/5 (66 Downloads) |
Book excerpt: Dynamic Offset-Compensated CMOS Amplifiers describes the theory, design and realization of dynamic offset compensated CMOS amplifiers. It focuses on the design of general-purpose wide-band operational amplifiers and instrumentation amplifiers. Two offset compensation techniques are described: auto-zeroing and chopping. Several topologies are discussed, with which these techniques can be used in the design of wide-band dynamic offset-compensated amplifiers. Four implementations are discussed in detail: two low-offset wide-band operational amplifiers, a low-offset instrumentation amplifier, and a low-offset current-sense amplifier, which can sense the current drawn from supply voltages up to 28V .