Title :
An autozeroing amplifier using PFET hot-electron injection
Author :
Hasler, Paul ; Minch, Bradley A. ; Diorio, D. ; Mead, Carver
Author_Institution :
California Inst. of Technol., Pasadena, CA, USA
Abstract :
We have developed an amplifier which removes its “off-set” as a natural part of its operation by modifying the charge on a floating gate. The charge on the floating gate is adapted by a combination of electron tunneling and hot-electron injection, resulting in a nonlinear high-pass filter with a cutoff frequency less than 1 Hz. We show experimental data from this autozeroing amplifier for various input waveforms, and an analytical model which fits the output waveforms. This autozeroing amplifier is a single-input case of a continuous learning circuit
Keywords :
MOS integrated circuits; VLSI; active networks; high-pass filters; hot carriers; nonlinear filters; operational amplifiers; tunnelling; PFET hot-electron injection; autozeroing amplifier; continuous learning circuit; cutoff frequency; electron tunneling; floating gate charge modification; input waveforms; nonlinear high-pass filter; output waveforms; Circuits; Clocks; Cutoff frequency; Filters; Operational amplifiers; Power supplies; Secondary generated hot electron injection; Steady-state; Tunneling; Voltage;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.541599
