Programmable Gain, Temperature Compensated Logarithmic Amplifier based on Current Conveyor and OTA

被引：0

作者：

Kupreyev, Dmitriy ^{[1
]}

Dautov, Kassen ^{[1
]}

Hashmi, Mohammad ^{[1
]}

机构：

[1] Nazarbayev Univ, Sch Engn, Astana, Kazakhstan

来源：

2018 2ND INTERNATIONAL CONFERENCE ON COMPUTING AND NETWORK COMMUNICATIONS (COCONET) | 2018年

关键词：

LNA; Combined Lumped and Transformer Matching; Negative Feedback;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter reports a new logarithmic amplifier using a second generation current conveyor (CCII) and an operational trans-conductance amplifier (OTA) is presented. It utilizes the classical diode type exponential I-V relationship and allows voltage as well as current inputs and outputs. Moreover, the proposed design does not suffer prom the presence of the instability issue of an op-amp based logarithmic amplifiers, the reason behind which lies in the presence of the active element in the feedback loop. The achieved results demonstrate logarithmic behaviour and temperature insensitivity and is in complete consonance with the theoretical postulation.

引用

页码：185 / 188

页数：4

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