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GainAMP click - MikroElektronika Digitally Programmable Gain Amplifier (PGA)

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  • GainAMP click - MikroElektronika Digitally Programmable Gain Amplifier (PGA)

    GainAMP click carries the LTC®6912 dual channel, low noise, digitally programmable gain amplifier (PGA). The click is designed to work on either 3.3V or 5V power supply. It communicates with the target MCU over SPI interface, with additional functionality provided by the following pins on the mikroBUS™ line: AN, RST.

    GainAMP click also features three pairs of screw terminals and a power indication LED.

    How it works

    The gains for both channels are independently programmable, using a 3-wire SPI interface to select voltage gains of 0, 1, 2, 5, 10, 20, 50, and 100V/V (LTC6912-1). All gains are inverting.

    The LTC®6912 consists of 2 matched amplifiers with rail-to-rail outputs. When operated with unity gain, they will also process rail-to-rail input signals.

    A half-supply reference generated internally at the AGND pin supports single power supply applications. Operating from single or split supplies from 2.7V to 10.5V total.

    Programmable gain amplifier

    A programmable-gain amplifier (PGA) is an electronic amplifier whose gain can be controlled externally (by analog or digital signals).


    Type Amplifier
    Applications Data Acquisition Systems, Dynamic Gain Changing, Automatic Ranging Circuits, Automatic Gain Control.
    MCU LTC®6912 dual channel gain amplifier
    Key Features Rail-to-Rail Output Swing, Rail-to-Rail Input Range, 2 Channels with Independent Gain Control, Three pairs of screw terminals, 3-wire SPI interface
    Interface SPI,Analog,GPIO
    Input Voltage 3.3V or 5V
    Compatibility mikroBUS
    Click board size S (28.6 x 25.4 mm)


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