Precision Analog

Precision analog circuits are widely used in industrial, biomedical, sensor interface applications, etc. Low offset, low flicker noise, high CMRR, and PSRR are the common specifications. Dynamic offset cancellation techniques are often employed.

We work on amplifiers and ADCs employing dynamic offset cancellation techniques.

We also work on linear amplifiers with self-calibration techniques to achieve high precision.

Projects

On-going

We are working on precision amplifier with self calibration techniques, stay tuned!

Closed

A multi-path chopper stabilized precision amplifier.

Key Publications:

Q. Fan, J. H. Huijsing, K. A.A. Makinwa, “A 21nV/√Hz Chopper-Stabilized Multi-path Current-Feedback Instrumentation Amplifier with 2µV Offset”, in IEEE Journal of Solid-State Circuits (JSSC), vol. 47, no. 2, pp. 464-475, Feb. 2012, doi: 10.1109/JSSC.2011.2175269.
Qinwen Fan, Johan H. Huijsing, Kofi A.A. Makinwa, “A 21nV/√Hz Chopper-Stabilized Multi-path Current-Feedback Instrumentation Amplifier with 2µV Offset”, 2010 IEEE International Solid-State Circuits Conference - (ISSCC), 2010, pp. 80-81, doi: 10.1109/ISSCC.2010.5434041.

Closed

A micro-watt capacitively-coupled chopper precision amplifier.

Key Publications:

Qinwen Fan, Fabio Sebastiano, Johan H. Huijsing, Kofi A.A. Makinwa, “A 1.8µW 1µV-Offset Capacitively-Coupled Chopper Instrumentation Amplifier in 65nm CMOS”, 2010 Proceedings of ESSCIRC, 2010, pp. 170-173, doi: 10.1109/ESSCIRC.2010.5619902.
Q. Fan, F. Sebastiano, J. H. Huijsing, K. A.A. Makinwa, “A 1.8 W 60 nV/√Hz Capacitively-Coupled Chopper Instrumentation Ampliﬁer in 65 nm CMOS for Wireless Sensor Nodes”, in IEEE Journal of Solid-State Circuits (JSSC), Vol. 47, No. 2, pp 464-475, Feb. 2011, doi: 10.1109/JSSC.2011.2143610.