SBOU281 May   2022

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 EVM Specifications
  3. 2Power Connections
    1. 2.1 Split-Supply Operation
    2. 2.2 Single-Supply Operation
  4. 3Input and Output Connections
    1. 3.1 Bias Mode Control Pins
    2. 3.2 Optional VCM Connection
  5. 4Schematic and Layout
    1. 4.1 Schematic
    2. 4.2 Layout

2.1 Split-Supply Operation

To operate as a split supply, apply the positive supply voltage to VCC, the negative supply voltage to VEE, and the ground reference to GND.

When operating with equal (balanced) split-supplies in the differential input configuration, the input common mode can be held to GND by shorting C4.

If operating with uneven supplies in the differential input configuration, the input common mode can be referenced to midsupply, VCC/2. This can be modified by adding resistors R25 and R26 and adjusting the values to obtain a midpoint or other voltages between the supplies. A high-frequency 0.1 ΩF decoupling capacitor connected to VCM can be included as C4 on the board.