SBOU272 November   2021 INA2126 , INA2128

 

  1.   Trademarks
  2. 1Overview
    1. 1.1 Features
    2. 1.2 INA Pinout
    3. 1.3 Compatible Devices
  3. 2Quick Start
    1. 2.1 Dual-Supply Configuration
    2. 2.2 Single-Supply Configuration
      1. 2.2.1 Direct Reference Connection
      2. 2.2.2 Buffered-Reference Voltage Connection
  4. 3EVM Components
    1. 3.1 Power
    2. 3.2 Inputs
      1. 3.2.1 Input Filtering
    3. 3.3 Output
      1. 3.3.1 Output Filtering
    4. 3.4 Reference
    5. 3.5 Miscellaneous
  5. 4Schematic, PCB Layout, and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials

2.1 Dual-Supply Configuration

Figure 2-1 shows an example of how to set up the EVM for dual-supply operation. These steps can be applied to channel A or channel B of the dual INA.

Figure 2-1 Dual-Supply Configuration
  1. +VS to test point TP1
  2. –VS to test point TP11
  3. Install jumper shunt to position 1 and 2 on J1
  4. Differential input signal connect to test points VinA– (TP14) and VinA+ (TP17) of channel A
    1. Differential input signal connect to test points VinB– (TP20) and VinB+ (TP22) of channel B
  5. Observe output at test point VOA (TP15)
    1. Observe output at test point VOB (TP21)
Note: C15 and C22 are prepopulated with 0.1-µF power-supply decoupling capacitors. See the respective device data sheet for additional power-supply decoupling information.