OP77FZ

Instrumentation, Op Amps, Buffer Amps Overview

The OP77FZ is a single-channel, ultralow offset voltage operational amplifier manufactured by Analog Devices Inc. It features an 8-lead Ceramic Dual In-Line Package (CERDIP) with a Z suffix. The device operates within a supply voltage range of ±3 V to ±22 V and supports an operating temperature range from -25°C to +85°C. Key electrical specifications include a maximum input offset voltage of 60 µV, a maximum average input offset voltage drift of 0.6 µV/°C, and a minimum large-signal voltage gain of 2000 V/mV. The amplifier consumes a maximum power of 60 mW at ±15 V.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Outstanding gain linearity maintaining high accuracy over the full output voltage range
• Ultrahigh open-loop gain exceeding 10,000,000 for superior performance in high closed-loop applications
• Low initial offset voltage drift and rapid stabilization time reducing system errors
• High power supply rejection ratio virtually eliminating errors caused by supply drifts

Instrumentation, Op Amps, Buffer Amps Applications

• Precision high-gain differential amplifiers
• Precision current sinks and sources
• Precision absolute value amplifiers
• Low noise precision reference buffering
• Precision positive peak detectors

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'Z' corresponds to the 8-Lead Ceramic Dual In-Line Package (Q-8). Confirm that the component meets RoHS compliance requirements if applicable to the manufacturing process. Ensure the selected variant matches the required temperature range of -25°C to +85°C. Cross-reference the datasheet revision G specifications against the procurement documentation to ensure parameter consistency.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the OP77FZ when system designs require exceptional gain linearity and minimal offset voltage drift over temperature. This component is suitable for tight error budget applications where standard monolithic op amps introduce incorrectable nonlinearities. Consider the CERDIP package constraints for thermal management and board layout. Evaluate the low bias current and high input resistance for high-impedance sensor interfaces.

Instrumentation, Op Amps, Buffer Amps Part Context

The OP77 belongs to the Next Generation OP07 family of ultralow offset voltage operational amplifiers. It serves as an upgrade to previous designs by offering significantly lower power consumption and improved long-term stability. The device eliminates the need for external offset adjustment circuits in many applications due to its factory-trimmed characteristics and low temperature coefficient of offset voltage.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

OP77EZ

Instrumentation, Op Amps, Buffer Amps FAQ

Does the OP77FZ require external offset nulling?

No, the OP77FZ has a low initial offset voltage of 60 µV maximum and low drift, which typically eliminates the need for offset adjustment.

What is the maximum power supply voltage for the OP77FZ?

The absolute maximum supply voltage rating is ±22 V.