The OPA593 is a high-voltage (85 V), high-precision, wide-bandwidth (10 MHz), high-output-current (250 mA), unity-gain-stable, power op amp.
The OPA593 uses a laser trimming technique to improve the offset voltage (20 µV, typical) and offset voltage drift (0.4 µV/°C, typical), and thus avoids the need for calibration. This device features mux-friendly inputs that enable differential input voltage range to the supply rails and help improve settling performance in multichannel systems.
An external resistor can be used to limit the current with specified accuracy, and thus provide more precise measurements. In case of an overcurrent or overtemperature condition, the device indicates erroneous operation through a status flag. An included disable feature is used to shutdown the device, saving power and placing the output into a high-impedance state.
The device is unity-gain stable, enabling operation as a high-impedance buffer. The wide bandwidth and high slew enable high signal gains. The high output current and capacitive drive allow the device to drive external field-effect transistors (FETs) used to provide higher system currents, such as in a digital power supply.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | OPA593 85-V, 250-mA Output Current, Precision, Power Op Amp datasheet (Rev. C) | PDF | HTML | Dec 23, 2022 |
| Application note | Optimizing Dual Feedback Compensation in the OPA593 With a Current Booster for 1μF Capacitive Loads in ATE App | PDF | HTML | Nov 19, 2024 | |
| Application brief | Paralleling the OPA593 High-Voltage, High-Current Op Amp for 2 × Output Current (Rev. A) | PDF | HTML | Jan 9, 2023 | |
| Application brief | How Do I Achieve a More Accurate Current Limit and Avoid Damaging My DUT? | PDF | HTML | Mar 10, 2022 | |
| Certificate | OPA593EVM EU RoHS Declaration of Conformity (DoC) | Oct 26, 2021 |
For additional terms or required resources, click any title below to view the detail page where available.
The OPA593EVM evaluation module (EVM) provides a platform to evaluate the OPA593 high-voltage, high-current operational amplifier. Multiple component footprints allow the most common op amp circuit configurations including an improved Howland current pump.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DNT) | 12 | Ultra Librarian |
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