Accurate Constant Transconductance Generation without Off-Chip Components
- Resource Type
- Conference
- Authors
- Mondal, Imon; Krishnapura, Nagendra
- Source
- 2015 28th International Conference on VLSI Design VLSI Design (VLSID), 2015 28th International Conference on. :249-253 Jan, 2015
- Subject
- Bioengineering
Components, Circuits, Devices and Systems
Computing and Processing
Transconductance
System-on-chip
Resistance
MOSFET
Resistors
Negative feedback
Mismatch
Off-chip
- Language
- ISSN
- 1063-9667
2380-6923
A process, voltage, and temperature invariant transconductance generation technique without the use of any off-chip components is proposed. It generates transconductance by tracking an MOSFET in linear region, whose conductance is precisely controlled by negative feedback using constant voltage and current references. Simulation results of a prototype transconductor in 0.13μm CMOS technology show an inaccuracy of less than 0.5% for 120°C variation of temperature and a deviation of ±4% with mismatch.