Gain/Attenuation (Newbie question)

Discussion in 'General Electronics Chat' started by NY10, Aug 3, 2010.

  1. NY10

    Thread Starter Member

    Jul 30, 2010
    Hi, all

    I just have some datasheets questions.

    I had read the datasheets, but not quite sure what they are doing exactly.

    The chips that I have questions are AD8180, VCA821, ADG734, and AD5245.

    If someone can explain these in detail, it is appreciated.
  2. kingdano

    Senior Member

    Apr 14, 2010
    AD8180 - Multiplexer

    VCA821 - Variable Gain Amplifier

    ADG734 - Essentially is an IC with 4 switches - the switches are actually CMOS devices - so they are logic level (digital) controlled switches

    AD5245 - A potentiometer which is controllable via a microcontroller - in this case using I2C as a communications protocol.²C

    Hope that helps,

    NY10 likes this.