SBOU268 November   2021 OPA593

 

  1.   Trademarks
  2. 1Overview
    1. 1.1 Getting Started
      1. 1.1.1 Related Documentation From Texas Instruments
    2. 1.2 High-Voltage Warning and Safe Use
    3. 1.3 Electrostatic Discharge Caution
  3. 2Operation
    1. 2.1 Jumper Blocks, Jacks, and Test Points
    2. 2.2 Inputs
    3. 2.3 Outputs
    4. 2.4 Enable or Disable
    5. 2.5 Status Flags
      1. 2.5.1 Circuit Protection
  4. 3Application Circuits
    1. 3.1 Setting Dual-Supply or Single-Supply Operation
      1. 3.1.1 Dual-Supply Operation Configuration
      2. 3.1.2 Single-Supply Operation Configuration
    2. 3.2 Common Op-Amp Configurations
      1. 3.2.1 Inverting Gain of –10 V/V
        1. 3.2.1.1 External Connections for –10 V/V Inverting Gain Configuration
        2. 3.2.1.2 Inverting Gain of –10 V/V Configuration Electrical Performance
      2. 3.2.2 Noninverting Gain of +2 V/V
        1. 3.2.2.1 External Connections to OPA593EVM for Noninverting Gain Configuration
        2. 3.2.2.2 Noninverting Gain Configuration Electrical Performance
      3. 3.2.3 Gain of +10 V/V Difference Amplifier
        1. 3.2.3.1 Jumper Shunt Locations for Difference-Amplifier Configuration
        2. 3.2.3.2 Gain of 10 V/V Difference Amplifier Configuration Electrical Performance
      4. 3.2.4 Improved Howland Current Pump
        1. 3.2.4.1 Jumper Shunt Locations for Improved Howland Current Pump Configuration
  5. 4Schematic, PCB Layout, and Bill of Materials
    1. 4.1 EVM Schematic
      1. 4.1.1 EVM Default Configuration
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials

3 Application Circuits

The OPA593EVM can be connected in a variety of standard op-amp circuits: inverting amplifier, noninverting amplifier, difference amplifier, and as an improved Howland current pump (V-I converter), as well as others. See the OPA593 data sheet for some typical application circuits.

As received, the OPA593EVM has eight (8), 100-mil jumper shunts across jumper blocks on the PCB. The locations have been selected to establish the OPA593 as either an inverting amplifier having a gain of –1 V/V when VIN– (J5) is driven, or as a noninverting amplifier having a gain of +1 V/V when VIN+ (J9) is driven.

Section 4.1.1, Section 4.1.1, provides a simplified OPA593EVM schematic. The schematic shows the jumper shunts (SH-J#) installed at particular jumper blocks. These jumper shunts as placed set up the two described gain settings.

Some of the jumper shunts are in passive jumper block locations where they do not contribute to the functionality of the circuit. This placement was done so that all eight shunts could be provided with the EVM and would be available for use in more involved circuits.