摘要
介绍了一种大动态范围视频对数放大器的设计,并给出了研制结果。该视频对数放大器是在自制单片IC基础上混合集成,单片IC采用PN结隔离双极工艺制作。经测试,该电路动态范围达84 dB、增益为75 dB、对数斜率为50 mV/dB、对数精度为±2 dB。
A large dynamic range video log amplifier is presented. The design of the circuit is described and test results is provided. This video log amplifier is based on a monolithic IC, which is fabricated using PN junction isolation bipolar process by SISC, and all peripheral devices are integrated using hybrid IC process. Test results indicate the circuit has a log dynamic range of 84 dB, gain of 75 dB, log slope of 50 mV/dB and log error less than ±2 dB.
出处
《微电子学》
CAS
CSCD
北大核心
2006年第6期782-784,793,共4页
Microelectronics
关键词
动态范围
直流耦合
集成视频对数放大器
负反馈
Dynamic range
DC coupled
Integrated video log amplifier
Negative feedback
