SBOU286A October   2022  – December 2022 INA350 , INA351

 

  1.   DDF Instrumentation Amplifier Evaluation Module
  2.   Trademarks
  3. 1Overview
    1. 1.1 Features
    2. 1.2 Instrumentation Amplifier Pinout
    3. 1.3 Compatible Devices
  4. 2PCB Layout
  5. 3Schematic
  6. 4EVM Components
    1. 4.1 Power
    2. 4.2 Inputs
      1. 4.2.1 Input Filtering
    3. 4.3 Output
      1. 4.3.1 Output Filtering
    4. 4.4 Reference
    5. 4.5 Other Passives
    6. 4.6 Miscellaneous
  7. 5Quick Start
    1. 5.1 Dual-Supply Configuration
    2. 5.2 Single-Supply Configuration
      1. 5.2.1 Direct-Reference Connection
      2. 5.2.2 Buffered-Reference Voltage Connection
  8. 6Bill of Materials
  9. 7Revision History

5.1 Dual-Supply Configuration

Figure 5-1 shows an example of how to set up the EVM for dual-supply operation.

Figure 5-1 Dual-Supply Configuration

The following connections were made:

  1. +VS to V+ test point
  2. -VS to V– test point
  3. Install 0-Ω resistor as R17 (or connect REF test point to GND)
  4. Differential input signal connect to IN– and IN+ test points
  5. Observe output at OUT test point

Note:

1. C9 and C12 are prepopulated with 0.1-µF power-supply decoupling capacitors. Refer to the device data sheet for additional power-supply decoupling information (Table 1-1).

2. A valid input common mode must be present on both inputs of the IA for proper operation.