AD8651ARZ-REEL7

Overview

The AD8651ARZ-REEL7 is a single-channel, precision CMOS operational amplifier manufactured by Analog Devices. It features rail-to-rail input and output capabilities with a gain bandwidth product of 50 MHz and a slew rate of 41 V/µs. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V. Key electrical specifications include a typical input offset voltage of 100 µV, an input bias current of 1 pA, and a voltage noise density of 4.5 nV/√Hz at 100 kHz. It provides an output current capability of 40 mA and maintains high common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR). The component is housed in an 8-lead SOIC package and is rated for operation within an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Utilizes DigiTrim technology for post-package trimming of offset voltage across the entire common-mode range.
• Features true rail-to-rail input and output swing architecture using parallel NMOS and PMOS differential pairs.
• Provides high-speed performance with 50 MHz gain bandwidth and low distortion characteristics.
• Ensures stability without phase reversal when input common-mode voltages approach the supply rails.

Applications

• Optical communications systems
• Laser source drivers and controllers
• High-speed ADC and DAC interfaces
• Video line drivers
• Cell phone PA control circuits

Procurement Notes

Verify that the specific part number suffix REEL7 corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the manufacturer designation matches Analog Devices Inc. to ensure authenticity. Check RoHS compliance documentation if environmental regulations apply to the manufacturing environment. Ensure the ordering quantity aligns with standard reel sizes provided by the distributor.

Selection Notes

Select this component for applications requiring high precision combined with high speed in single-supply environments. The low input bias current makes it suitable for high-impedance sensor interfaces. Consider the 40 mA output drive capability when designing stages that must drive moderate loads directly. Verify that the 50 MHz bandwidth meets the signal frequency requirements of the target application.

Part Context

This device belongs to the AD865x family of precision amplifiers, which also includes dual-channel variants like the AD8652. The family shares core architectural features such as iCMOS processing and DigiTrim calibration. The AD8651 specifically isolates one channel within the 8-lead SOIC or MSOP footprint, offering space-saving solutions compared to older generation amplifiers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.