Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1508096 | Cryogenics | 2009 | 5 Pages |
Abstract
We present original CMOS amplifiers designed for the DC to 10 MHz frequency range and operating in the 70–380 K temperature range. Aimed applications concern readout circuitry to be associated with THz bolometric pixels (either high-Tc superconducting or uncooled semiconducting), which require accuracy, low noise and low power consumption. Two designs are described that both exhibit high fixed-gain (40 dB) in a feedback-free architecture, which is based on a new low-transconductance composite transistor for an accurate control of this gain. Both amplifiers have been realized in a regular 0.35 μm CMOS process and tested in the 4.2–380 K temperature range, exhibiting good agreement between designed and measured characteristics.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Vratislav Michal, Geoffroy Klisnick, Gérard Sou, Michel Redon, Alain J. Kreisler, Annick F. Dégardin,