Dual 85V high speed-to-power ratio (100V/µs to 400µA), precision (100µV offset) amplifier

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.