LTC6910系列数字控制可编程增益放大器原理与应用

Principle and application of digitally control programmable gain amplifiers LTC6910

LTC6910-1、LTC6910-2和LTC6910-3是占用PCB空间非常小的低噪声数字控制可编程增益放大器。它们可通过3位数字输入来提供8种电压增益以供选择。文中简要介绍LTC6910的主要特性、内部结构、引脚功能和工作原理,给出LTC6910的实际应用电路。

The LTC6910-1,LTC6910-2 and LTC6910-3 are low noise digital programmable gain amplifiers（PGA） that are easy to use and occuplies very little PCB space.They delivers a choice of eight voltage gains by a 3-bit digital input.The general characteristics of LTC6910-1/2/3 briefly, the feature,pin functions and operation principle are described , and application circuits of LTC6910 are in detail in this paper.