SBOU229A August   2019  – April 2022 THS6222

 

  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 IREF Pin Connection
    3. 3.3 Optional VCM Pin Connection
  5. 4Board Layout
  6. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials
  7. 6Related Documentation
  8. 7Revision History

2.1 Split-Supply Operation

To operate as a split supply, apply the positive supply voltage to V+, the negative supply voltage to V–, and the ground reference from supply to GND.

When operating with equal (balanced) split-supplies, the input common mode is held to GND by R16 on the bottom of the THS6222RHFEVM PCB. This configuration is default and will be present upon opening the EVM for the first time.

If operating with uneven supplies, the input common mode must be referenced to midsupply, V+/2. For uneven supplies, this input common mode is not at GND potential. A board modification is required. Follow the steps in Single-Supply Operation for implementing uneven supplies on the THS6222RHFEVM.