AD8669ARZ-REEL7

Overview

The AD8669ARZ-REEL7 is a quad, low noise, precision, 16 V CMOS rail-to-rail operational amplifier manufactured by Analog Devices Inc. It utilizes the patented DigiTrim trimming technique to achieve low offset voltage and low input bias current. The device operates on single supplies from 5 V to 16 V or dual supplies of ±2.5 V to ±8 V. Key electrical parameters include a maximum supply current of 355 μA per amplifier at +125°C, a gain bandwidth product of 540 kHz, and a slew rate of 0.3 V/μs. Input characteristics feature a maximum offset voltage of 300 μV and an input bias current of 0.3 pA. The component is housed in a 14-lead SOIC package and supports an extended industrial operating temperature range from -40°C to +125°C.

Feature Summary

• Utilizes patented DigiTrim trimming technology for low offset voltage and low input bias current.
• Features rail-to-rail output capability to maximize dynamic range for driving data converters.
• Supports both single-supply (5 V to 16 V) and dual-supply operation.
• Designed for high impedance sensor applications with low noise and wide bandwidth.

Applications

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

Procurement Notes

Verify that the ordering suffix REEL7 corresponds to the reel packaging format specified in the manufacturer's ordering guide. Confirm the package type matches the 14-lead SOIC_N option. Ensure the RoHS compliance designation 'Z' aligns with project requirements. Cross-reference the specific part number against the official datasheet revision history to confirm parameter accuracy.

Selection Notes

Select this component when a quad configuration is required for precision signal conditioning. The combination of low offset voltage, low bias current, and rail-to-rail outputs makes it suitable for replacing higher-priced JFET amplifiers. Consider the 14-lead SOIC package for board space constraints compared to other available options like TSSOP.

Part Context

This component 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 device and the AD8667 is dual-channel, the AD8669 provides four independent amplifiers within a single package. All members share similar electrical characteristics and utilize the same DigiTrim technology.

Replacement Considerations

The AD8669ARUZ serves as a pin-compatible alternative offering the same electrical performance in a 14-lead TSSOP package instead of the SOIC form factor.

FAQ

How does the AD8669 achieve its low offset voltage?

The device uses Analog Devices' patented DigiTrim trimming technique to achieve low offset voltage specifications.

What is the input bias current specification for this amplifier?

The input bias current is specified at a typical value of 0.3 pA.