AD8667ARZ

Overview

The AD8667ARZ is a dual-channel, precision, low-noise CMOS operational amplifier manufactured by Analog Devices. It features rail-to-rail output capability and operates on single supplies from 5 V to 16 V or dual supplies of ±2.5 V to ±8 V. The device utilizes DigiTrim® trimming for low offset voltage (max 300 µV at 16 V) and extremely low input bias current (0.3 pA typical). Key electrical parameters include a gain bandwidth product of 540 kHz, a slew rate of 0.3 V/µs, and a voltage noise density of 23 nV/√Hz. It is housed in an 8-lead SOIC package and functions within an extended industrial temperature range of −40°C to +125°C.

Feature Summary

• Utilizes patented DigiTrim® trimming technique to achieve low offset voltage and drift.
• Features rail-to-rail outputs that provide increased dynamic range for driving data converters.
• Combines very low input bias current with low noise for high impedance sensor applications.
• Operates on single or dual power supplies up to 16 V.

Applications

• Sensor front ends
• Transimpedance amplifiers
• Electrometer applications
• Photodiode amplification
• Low power ADC drivers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the package type and reel configuration. Ensure the component meets RoHS compliance requirements if applicable to your manufacturing process. Cross-reference the datasheet revision to confirm the operating temperature range and electrical characteristics match your design specifications before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring low input bias current and low noise without the cost of JFET amplifiers. It is suitable for systems needing rail-to-rail output swing and operation across wide supply voltages. Consider the 8-lead SOIC package constraints regarding thermal resistance and board space when integrating into the layout.

Part Context

The AD8667ARZ belongs to the AD8663/AD8667/AD8669 family of low noise, precision, 16 V CMOS rail-to-rail operational amplifiers. While the AD8663 is a single channel and the AD8669 is a quad, the AD8667 provides two channels in an 8-lead SOIC package. This family shares common performance characteristics such as low offset voltage and low supply current.

Replacement Considerations

The AD8667ARMZ serves as a direct pin-compatible replacement offering the same electrical performance in an 8-lead MSOP package.

FAQ

What is the maximum supply voltage for the AD8667ARZ?

The absolute maximum supply voltage rating is 18 V, but the recommended operating range extends up to 16 V.

Does the AD8667ARZ have a shutdown mode?

No, the AD8667ARZ does not feature a shutdown mode; it operates continuously within its specified temperature range.