SBOU265 February   2022 LMH34400

 

  1.   Trademarks
  2. 1Introduction
  3. 2Feature Description
  4. 3EVM Specifications
  5. 4Power Connections
  6. 5Input and Output Connections
    1. 5.1 Ambient Light Cancellation
    2. 5.2 Power Down Function
    3. 5.3 Optional Output DC Bias Configuration
  7. 6Layout
  8. 7Schematic
  9. 8Bill of Materials

1 Introduction

The LMH34400DRLEVM is an evaluation module (EVM) for the LMH34400DRL single-ended transimpedance amplifier. The EVM features standard input power receptacles, coaxial input and output connections, and an optional output bias through a fixed 1VDC LDO regulator. The input is 50 Ω matched and configured by default to receive a voltage input that is converted to a current through a 4.02 kΩ resistor, but can be reconfigured to receive a true current input. The EVM also includes easy-to-use jumpers to enable or disable the LDO and control the input bias current cancellation and device shutdown functions.