SBOU240 October   2020 OPA455

 

  1.   Trademarks
  2. 1Overview
    1. 1.1 OPA455
    2. 1.2 OPA455EVM
    3. 1.3 Related Documentation
    4. 1.4 Evaluation Module Limitations and Cautions
      1. 1.4.1 High-Voltage Warning
      2. 1.4.2 Electrostatic Discharge Caution
  3. 2Getting Started
    1. 2.1 Power Supplies
    2. 2.2 Jumpers
    3. 2.3 Inputs
    4. 2.4 Outputs
    5. 2.5 Enable or Disable (E/D)
    6. 2.6 Status Flag
      1. 2.6.1 Circuit Protection
  4. 3Application Circuits
    1. 3.1 Improved Howland Current Pump
  5. 4Schematic, PCB Layout, and Bill of Materials
    1. 4.1 EVM Schematic
    2. 4.2 EVM Default Configuration
    3. 4.3 PCB Layout
    4. 4.4 Bill of Materials

1.2 OPA455EVM

The OPA455EVM is intended to provide basic functional evaluation of the OPA455. The EVM provides the following features:

  • Easy access to pertinent nodes with test points and terminal blocks
  • Convenient input and output filtering
  • Access to multiple nodes and footprints for compensation
  • Protection against power supply sequencing and inductive load kickback
  • Configurable for any common amplifier topology, including the improved Howland current pump
  • Footprints for providing a flexible reference voltage