A translinear current-mode programmable analog exponential function synthesizer

Author

Abuelma´atti, Muhammad Taher

Author_Institution

King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia

fYear

1999

fDate

22-24 Nov. 1999

Firstpage

209

Lastpage

212

Abstract

A new circuit configuration is presented for synthesis of analog exponential functions. The proposed circuit is based on approximating the exponential function using rational functions. The circuit is flexible and can synthesize any exponential function, to any degree of accuracy, once its rational-function approximation is obtained. The proposed circuit uses only bipolar transistors and current-sources and is, therefore, very attractive for integration. SPICE simulation results are included.

Keywords

SPICE; bipolar analogue integrated circuits; bipolar transistors; circuit simulation; constant current sources; current-mode circuits; function approximation; function generators; programmable circuits; rational functions; SPICE simulation; analog exponential function synthesis; analog exponential functions; bipolar transistors; circuit configuration; circuit flexibility; circuit integration; current-sources; exponential function approximation; exponential function synthesis; rational functions; rational-function approximation; translinear current-mode programmable analog exponential function synthesizer; Circuit simulation; Circuit synthesis; DH-HEMTs; Error correction; Flexible printed circuits; Minerals; Petroleum; Synthesizers; Temperature dependence; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Microelectronics, 1999. ICM '99. The Eleventh International Conference on

Print_ISBN

0-7803-6643-3

Type

conf

DOI

10.1109/ICM.2000.884842

Filename

884842