Look for "Programmable Gain" amplifiers. The Microchip MCP6S21 (8-pin DIP) has an SPI interface and gain settings of 1,2,4,5,8,10,16, and 32. They also have units with 2, 6 and 8 inputs but they are multiplexed so there is only one output.
Another option, opamp with a digital pot in the feedback._____Rob
but I wanted to setup a schedule to change the gain during different times of the day.
I have been looking for and IC that can take an oscillating signal (600Hz minimum) and amplify it.
Quote480VWarning Will Robinson, new and lethal criteria discovered Quotebut I wanted to setup a schedule to change the gain during different times of the day.I don't see how that precludes using the digital pot.I think you have to explain the minor detail of 480V before anyone can make further comment.For a start is this a small signal with a 480V offset, or a full 480V swing.____Rob