Title :
A second-order section built from autozeroing floating-gate amplifiers
Author :
Hasler, Paul ; Stanford, Theron ; Minch, Bradley A.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
1/1/2001 12:00:00 AM
Abstract :
We introduce the autozeroing floating-gate (AFGA) second-order section. We built this second-order filter where the corner frequency and Q are electronically tunable based on a classic filter topology and principles of operational transconductance amplifiers. We built this second-order filter using three AFGAs-our floating-gate amplifier that sets its operating point by the interaction of hot-electron injection and electron tunneling
Keywords :
active filters; hot carriers; integrated circuit reliability; network topology; operational amplifiers; tunnelling; autozeroing floating-gate amplifiers; corner frequency; electron tunneling; filter topology; floating-gate amplifier; hot-electron injection; operating point; operational transconductance amplifiers; second-order filter; second-order section; Circuits and systems; Differential amplifiers; Low voltage; Operational amplifiers; Rail to rail inputs; Signal processing; Solid state circuits; Switches; Switching circuits; Threshold voltage;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
