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

3.2.1 Inverting Gain of –10 V/V

Connect the jumper shunts as listed in Table 3-1 to establish an inverting gain of –10 V/V. The jumper shunt installations are illustrated in Figure 3-1. The jumper shunts are designated in the BOM as a shunt and have an SH-J# part designator. The jumper shunts appear in the schematic as the red jumpers connected across the various JP# jumper blocks.

Table 3-1 Jumper Shunt Connections for an Inverting Gain of –10 V/V
Jumper Block Jumper Shunt Connects Notes
JP3 R1 (1 kΩ) from VIN– to OPA593 -IN pin G = –10 V/V used
JP8 OPA593 noninverting input to GND
JP11 Open Enabled mode
JP13 Sets current limit to 100 mA
JP17 E/D Com pin E/D Com pin selection GND
JP18 RF1 (10 kΩ) inserted in OPA593 feedback path
JP21 1-kΩ, 2-W load resistor to OPA593 output
Figure 3-1 OPA593EVM Jumper Shunt Locations for G = –10 V/V Inverting Amplifier
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