High linearity OTA

OTAs are widely used in instrumentation amplifiers and ADCs. In many cases, to achieve high power efficiency, the OTA's input differential pair are biased in weak inversion. However, doing so will reduce the input signal range due to degraded linearity. Although techniques exist to improve such linearity for large input signals, they either require significant extra power consumption, or compromise PSRR, or have limited results.

In this project, you will propose innovative techniques to improve the OTA input differential pair's linearity without introducing significant drawbacks.

Assignment

The following project activities are expected:

·         Comprehensive literature study on input differential pair linearization

·         Propose novel linearization technique

·         Transistor-level circuit design

·         A tapeout is possible

·         Thesis writing

Requirements

You are an ambitious master student with good analog circuit design knowledge and high motivation. You should have obtained good grades from the following courses: Measurement and instrumentation, Analog circuit design fundamentals, CMOS I/II,

Contact

Last modified: 2024-12-05