OA4ZHA33Q

Instrumentation, Op Amps, Buffer Amps Overview

The OA4ZHA33Q is a quad zero-drift operational amplifier from STMicroelectronics, designed for high-precision applications. It features a gain-bandwidth product of 400 kHz and a slew rate of 190 mV/us. The input offset voltage is specified at 1 uV, with an input bias current of 300 pA. Operating on a supply voltage range of 1.8 V to 5.5 V, it consumes 31 uA per channel. The device offers rail-to-rail input and output capabilities, a common-mode rejection ratio of 115 dB, and an input voltage noise density of 37 nV/sqrt Hz. It supports output currents up to 18 mA and operates within a temperature range of -40°C to +125°C in a QFN-16 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Zero-drift architecture ensures very high accuracy and stability with minimal offset voltage drift over temperature.
• Rail-to-rail input and output stages maximize dynamic range for low-voltage single-supply systems.
• Low power consumption design enables efficient operation in battery-powered and energy-constrained applications.

Instrumentation, Op Amps, Buffer Amps Applications

• Precision sensor signal conditioning
• Medical instrumentation
• Industrial process control

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's official datasheet to ensure compatibility with your design requirements. Confirm that the component meets all relevant environmental compliance standards required for your target market before finalizing procurement decisions.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when ultra-low offset voltage and near-zero drift are critical for maintaining signal integrity over wide temperature ranges. The quad configuration provides multiple channels in a compact footprint, suitable for space-constrained designs requiring high precision without excessive power draw.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OA4ZHA series of low-power, high-precision op amps from STMicroelectronics. The series includes single (OA1ZHA), dual (OA2ZHA), and quad (OA4ZHA) versions, offering pinout compatibility with industry standards while delivering enhanced performance through chopper stabilization technology.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult official substitution lists for compatible alternatives within the same family or equivalent performance tiers from other manufacturers.