Current-mode pseudo-exponential-control variable-gain amplifier using fourth-order Taylor's series approximation

Arthansiri, T.; Kasemsuwan, V.

doi:10.1049/el:20060083

Current-mode pseudo-exponential-control variable-gain amplifier using fourth-order Taylor's series approximation

Author(s)

Arthansiri, T.

Kasemsuwan, V.

Date Issued

March 30, 2006

Type

Article

DOI

10.1049/el:20060083

Abstract

A new current-mode pseudo exponential-control variable-gain amplifier (VGA) using CMOS technology is proposed. The technique is based on the fourth-order Taylor's series approximation. The VGA exhibits a linear-dB controllable output range of 30 dB with maximum error less than 0.5 dB.

Citation

Electronics Letters, 42(7), 379-380, 2006