ADA4077-4ARUZ-R7

Overview

The ADA4077-4ARUZ-R7 is a quad high-precision operational amplifier from Analog Devices, packaged in a 14-lead TSSOP. It features an offset voltage of up to 50 µV and drift of 0.75 µV/°C at 25°C. The device operates on dual supplies ranging from ±2.5 V to ±15 V with a typical supply current of 400 µA per amplifier. Key electrical parameters include a gain bandwidth product of 3.9 MHz, a slew rate of 1.2 V/µs, and a common-mode rejection ratio exceeding 120 dB. It provides unity-gain stability without phase reversal.

Feature Summary

• Extremely low offset voltage and drift for high precision signal conditioning
• Low input bias current and noise density suitable for sensitive applications
• Capacitive load stability exceeding 1000 pF without external compensation
• MSL1 rated for robust assembly processes and extended industrial temperature range

Applications

• Sensor signal conditioning such as thermocouples, RTDs, and strain gauges
• Process control front-end amplifiers
• Precision diode power measurement in optical and wireless transmission systems
• Line powered and portable instrumentation
• Precision filters and voltage or current measurement level setting

Procurement Notes

Verify the specific package type (TSSOP) and channel count (Quad) match the design requirements. Confirm the A grade specifications for offset voltage and drift align with system accuracy needs. Ensure the operating temperature range covers the intended environmental conditions. Check that the reel packaging format meets production handling capabilities.

Selection Notes

Select this component when multiple channels are required in a compact surface-mount footprint. It serves as a direct upgrade to older OP07 family devices, offering significantly lower power consumption and higher bandwidth. Consider its immunity to phase reversal for robust feedback loop designs. Evaluate the trade-off between its moderate bandwidth and ultra-low offset characteristics for the specific application.

Part Context

This part belongs to the sixth generation of Analog Devices' industry-standard OP07 amplifier family. It replaces legacy precision amplifiers by integrating superior performance metrics into modern plastic packages. The ADA4077 series maintains compatibility with previous generations while improving power efficiency and dynamic performance for contemporary electronic designs.

Replacement Considerations

ADA4077-4ARZ is the tube-packaged equivalent of the same device.