SLVUDF7 October   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Electrostatic Discharge Caution
    3. 1.3 Kit Contents
    4. 1.4 Specification
    5. 1.5 Device Information
    6. 1.6 Hot Surface Warning
  8. 2Hardware
    1. 2.1 Setup and Connections
    2. 2.2 Jumper Settings
    3. 2.3 Power-Supply Connections
    4. 2.4 Analog Input and Output Connections
    5. 2.5 Reference Input
    6. 2.6 Digital Input Pins and Gain Control
    7. 2.7 Modifications
  9. 3Hardware Design Files
    1. 3.1 PCB Layout
    2. 3.2 Schematic
    3. 3.3 Bill of Materials
  10. 4Additional Information
    1. 4.1 Trademarks
  11. 5Related Documentation

2.4 Analog Input and Output Connections

The programmable amplifier input signal connections for the PGA848EVM are provided through the use of SMA connectors J4 (IN+), J7(IN-), and test points TP4(IN+), TP8(IN-), located at the left of the EVM. The REF external input is provided through screw-terminal connector J2, located at the right of the board. The PGA848EVM also provides direct access to the REF pin through screw-terminal connector J2.1, and test point TP2 located at the right of the board.

The PGA848 output connection is provided through screw-terminal connector J5.4, SMA connector J3, and test point TP5, located at the right side of the EVM. Figure 2-7 displays a simplified diagram of the PGA848EVM input and output connections.

PGA848EVM PGA848EVM Analog Input and Output ConnectionsFigure 2-7 PGA848EVM Analog Input and Output Connections

Table 2-3 summarizes the input and output connectors and corresponding test points.

Table 2-3 PGA848EVM Analog Input and Output Connections
Connector DesignatorSignalCommentTest Point
J4IN+SMATP4
J7IN–SMATP8
J3OUTSMATP3
J5.4OUTScrew terminalTP3
J5.3GNDScrew terminalTP2
J5.2GNDScrew terminalTP9
J5.1

REF pin / REF_sense

Screw terminal

TP7

J2.1REF_ExtScrew terminalTP2
J2.2GNDScrew terminalN/A