Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:C4
Session:
Number:C4-2
An Improved Bipolar Multiplier using a High Linear Transconductors with Wideband Input
Sung-Ho Yun, Yun-Mi Na, Hyeong-Woo Cha,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
A improved bipolar multiplier using a high linear transconductors with wide dynamic range for accuracy instrumentation system was designed. The multiplier consists of two high linear transconductors, a multiplier core, and a differential to single-ended converter. The transconductor has high linear and wide dynamic input range because of adaptive bias circuits. For the verification of the performance for the proposed multiplier, we simulated with the circuit of the commercial device of the AD534. The simulation result shows that the AD534 has dynamic range of ±10V and the proposed multiplier has ±13V at supply voltage ±15V, respectively. The linearity error of the proposed multiplier was five times smaller than that of the AD534. The power dissipation of the multipliers were the same.