TY - GEN
T1 - A fully integrated low noise CMOS instrumentation amplifier design for low-power biosensors
AU - Das, Vighnesh Rudra
AU - Lie, Donald Y.C.
AU - Nguyen, Tam
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/9/23
Y1 - 2014/9/23
N2 - This paper presents the design of a monolithic low power CMOS low-noise instrumentation amplifier (INA) for low-power biosensor applications. To achieve high-fidelity cardiac signal acquisition, the INA circuit and system design requirements are discussed. Design strategies for mitigating the in-band flicker noise and thermal noise using chopper-stabilization and current scaling techniques are investigated. Sub-threshold operation is also utilized to reduce power. The INA achieves a simulated noise spectral density of 39.9 nV/√Hz from dc to 300Hz in 4.6μW, with an outstanding noise efficiency factor (NEF) of 2.47.
AB - This paper presents the design of a monolithic low power CMOS low-noise instrumentation amplifier (INA) for low-power biosensor applications. To achieve high-fidelity cardiac signal acquisition, the INA circuit and system design requirements are discussed. Design strategies for mitigating the in-band flicker noise and thermal noise using chopper-stabilization and current scaling techniques are investigated. Sub-threshold operation is also utilized to reduce power. The INA achieves a simulated noise spectral density of 39.9 nV/√Hz from dc to 300Hz in 4.6μW, with an outstanding noise efficiency factor (NEF) of 2.47.
UR - http://www.scopus.com/inward/record.url?scp=84908494377&partnerID=8YFLogxK
U2 - 10.1109/MWSCAS.2014.6908470
DO - 10.1109/MWSCAS.2014.6908470
M3 - Conference contribution
AN - SCOPUS:84908494377
T3 - Midwest Symposium on Circuits and Systems
SP - 535
EP - 538
BT - 2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014
Y2 - 3 August 2014 through 6 August 2014
ER -