Design and Analysis of a Novel Automatic Gain Control Pre-Amplifier Circuit for Hearing Aid Device

被引：0
|
作者：
Singh, Rahul Kumar [1 ]
Dhiman, Rohit [2 ]
Chandel, Rajeevan [2 ]
机构：
[1] Natl Inst Technol, Hamirpur, India
[2] NIT Hamirpur, E&CE Dept, Hamirpur, India
来源：
2015 IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, COMPUTING AND COMMUNICATION TECHNOLOGIES (CONECCT) | 2015年
关键词：
Automatic gain control; cochlear device; fully differential Operational Amplifier; hearing aid; pre-amplifier; CHIP;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
In the present paper a novel automatic gain control pre-amplifier for hearing aid device is proposed and analyzed. The proposed design utilizes feedback and feed forward loop in order to control the gain of the device. Input and output thresholds have been accommodated to provide dual control. The weak input signal is amplified in three modes. High gain for low input and low gain for high input forms the basis of amplification. The measured average power dissipation of the complete pre-amplifier is 410 mu W with a dual power supply of +/- 0.7 V in 180 nm technology node. Frequency of operation is up to 20 kHz.
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收藏
页数：6
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