Adaptive driver with automatic sense and calibration in CMOS 40LP

Author

Monga, Sushrant

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol. Delhi, New Delhi, India

fYear

2013

fDate

4-6 Sept. 2013

Firstpage

83

Lastpage

86

Abstract

Dynamically calibrated driver block is presented which automatically adapts its termination resistance to the channel´s impedance. The driver senses the channel and calibrates to its characteristic impedance anywhere between 30 - 120 ohms. This circuit functions successfully for a minimum propagation delay of 500 ps on the channel. Results on the STM CMOS 40LP process confirm the driver´s impedance match to that of the line with an accuracy of +/- 8% with +/-3σ variation in the process, +/- 10% voltage spread at 2.5V and temperature variation range of - 40 to 125 degrees centigrade.

Keywords

CMOS integrated circuits; calibration; driver circuits; electric impedance; impedance matching; STM CMOS 40LP process; adaptive driver; automatic sense; calibration; channel impedance; driver impedance match; dynamically calibrated driver block; temperature -40 degC to 125 degC; termination resistance; voltage 2.5 V; Accuracy; CMOS integrated circuits; Impedance; Radiation detectors; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

SOC Conference (SOCC), 2013 IEEE 26th International

Conference_Location

Erlangen

ISSN

2164-1676

Type

conf

DOI

10.1109/SOCC.2013.6749665

Filename

6749665