The OPAx591 is a family of high precision, 85V CMOS power amplifiers available in small, industry standard packages.
These devices are laser trimmed to provide excellent dc performance, including 100µV max offset, 2µV/°C max offset drift. The high power supply and common-mode rejection help these op amps maintain high dc performance across different operating conditions. Degradation of precision is minimal because of the very low input bias current across the entire operating voltage range.
The OPAx591 also excels in ac performance despite the low quiescent current consumption. Proprietary design techniques provide 100V/µs slew rate and MUX-friendly inputs to enable fast settling of large signals. The low broadband noise help maintain signal fidelity across a wide frequency spectrum.
The combination of high precision, low noise, low power, and small packages make the OPAx591 a great choice for high voltage, space constrained systems where power consumption and, or thermal management is critical. Such systems include automated test equipment requiring high voltage and precision, power supplies requiring current or voltage sensing, and piezo actuator driving for haptic feedback systems.
This family of amplifiers operates over the extended industrial temperature range of –40°C to +125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | OPAx591 85V, Precision (100µV), Low-Power (420μA), High-Slew Rate (100V/μs) Op Amps With MUX-Friendly Inputs datasheet | PDF | HTML | 25 Feb 2026 |
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
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Analog Engineer's Calc Installer
General calculator tool for analog design support.