TY - GEN
T1 - An 8μW heterodyning chopper amplifier for directextraction of 2μVrms heuronal biomarkers
AU - Denison, Tim
AU - Santa, Wes
AU - Jensen, Randy
AU - Carlson, Dave
AU - Molnar, Gregory
AU - Avestruz, Al Thaddeus
PY - 2008
Y1 - 2008
N2 - A chopper architecture using heterodyne frequency selection provides both amplification and flexible bandpower extraction of neural signals. The bandpass center frequency is tunable from DC to 500Hz and the filter BW is programmable from 5 to 25Hz using an on-chip 3rd-order LPF. The filter configuaration is stored in on-chip non-volatile memory. The 2μV rms noise floor for a 10Hz band enables detection of key biomarkers. The "brain radio" including amplifiers, clocks and multipliers consumes 8μW from a 2V supply.
AB - A chopper architecture using heterodyne frequency selection provides both amplification and flexible bandpower extraction of neural signals. The bandpass center frequency is tunable from DC to 500Hz and the filter BW is programmable from 5 to 25Hz using an on-chip 3rd-order LPF. The filter configuaration is stored in on-chip non-volatile memory. The 2μV rms noise floor for a 10Hz band enables detection of key biomarkers. The "brain radio" including amplifiers, clocks and multipliers consumes 8μW from a 2V supply.
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U2 - 10.1109/ISSCC.2008.4523107
DO - 10.1109/ISSCC.2008.4523107
M3 - Conference contribution
AN - SCOPUS:49549125933
SN - 9781424420100
T3 - Digest of Technical Papers - IEEE International Solid-State Circuits Conference
SP - 162
EP - 164
BT - 2008 IEEE International Solid State Circuits Conference - Digest of Technical Papers, ISSCC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2008 IEEE International Solid State Circuits Conference, ISSCC
Y2 - 3 February 2008 through 7 February 2008
ER -