OP90GSZ-REEL

Instrumentation, Op Amps, Buffer Amps Overview

The OP90GSZ-REEL7 is a precision micropower operational amplifier manufactured by Analog Devices Inc. It operates from single supplies of 1.6 V to 36 V or dual supplies of ±0.8 V to ±18 V. Key electrical specifications include a maximum input offset voltage of 450 µV, a maximum supply current of 20 µA, and a minimum output drive capability of 5 mA. The device features a gain-bandwidth product of 20 kHz, a slew rate of 12 mV/µs, and an input bias current of 25 nA. It provides a common-mode rejection ratio of 100 dB and a power supply rejection ratio exceeding 109 dB. The component is housed in an 8-Lead SOIC package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Operates with true single-supply functionality, allowing input and output voltage ranges to include ground for zero-in, zero-out applications.
• Features high open-loop gain and low input offset voltage, eliminating the need for external nulling circuits.
• Includes internal protection resistors on the PNP input stage, allowing inputs to withstand voltages significantly beyond the supply rails without damage.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered portable instruments and remote sensors
• Micropower voltage references utilizing bandgap techniques
• Single-supply instrumentation amplifiers requiring high common-mode rejection
• Two-wire 4 mA to 20 mA current transmitters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the specific suffix REEL7 corresponds to the required tape and reel packaging configuration for automated assembly. Confirm RoHS compliance status as indicated by the Z suffix in the base part number. Ensure the operating temperature range meets the -40°C to +85°C requirement for the G grade variant. Cross-reference the datasheet revision to confirm pinout and electrical characteristics match the design intent.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when designing circuits constrained by low quiescent current requirements while maintaining precision performance. The device is suitable for applications where the input signal approaches the negative rail or ground in single-supply systems. Consider the 5 mA output drive capability for driving moderate loads directly. Evaluate the trade-off between the low bandwidth and the extremely low power consumption for sensor interface tasks.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the OP90 family of precision operational amplifiers designed for micropower applications. It serves as a high-performance alternative to standard general-purpose op amps in battery-operated environments. The series is characterized by its ability to function effectively at very low supply voltages while preserving signal integrity through high gain and low noise specifications.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OP90GSZ-REEL

Instrumentation, Op Amps, Buffer Amps FAQ

Does the OP90 require external offset nulling?

No, the OP90 is electronically adjusted on-chip for minimum offset voltage, eliminating the need for external nulling components in most applications.

What is the input voltage range in single-supply operation?

In single-supply operation, the input voltage range includes the negative rail (ground), allowing the amplifier to accommodate input signals down to zero volts.