AD8618ARZ-REEL

Overview

The AD8618ARZ-REEL is a quad-channel, rail-to-rail input and output CMOS operational amplifier from Analog Devices. It operates on single supplies ranging from 2.7 V to 5.0 V. Key electrical specifications include a maximum offset voltage of 65 µV, a gain bandwidth product of 24 MHz, and a slew rate of 12 V/µs. The device provides an output current capability of 150 mA per channel with a supply current of approximately 2 mA per amplifier. It features low noise density of 10 nV/√Hz at 1 kHz and extremely low input bias current of 1 pA.

Feature Summary

• Patented trimming technique achieves superior precision without laser trimming
• Immune to phase reversal when input common-mode voltage exceeds limits
• Rail-to-rail input and output swing enables full dynamic range utilization
• High output drive capability suitable for low impedance loads

Applications

• Barcode scanners
• Battery-powered instrumentation
• Multipole filters
• Photodiode amplification
• ASIC input or output buffering

Procurement Notes

Verify the package type matches the required PCB footprint, as the AD8618 family includes both SOIC and TSSOP variants. Confirm the specific suffix indicates tape and reel packaging if automated assembly is planned. Ensure the operating temperature range meets the application requirements, as the device is specified over the extended industrial range. Cross-reference the datasheet revision to confirm parameter consistency.

Selection Notes

Select this component when high precision and wide bandwidth are required in a single-supply system. The quad configuration reduces board space compared to individual amplifiers. Consider the 150 mA output drive for driving low impedance loads or audio line drivers. Evaluate thermal dissipation if driving heavy capacitive loads or high currents near the absolute maximum ratings.

Part Context

The AD8618 is part of the DigiTrim® family of precision amplifiers, which also includes the single-channel AD8615 and dual-channel AD8616. These devices share similar performance characteristics but differ in channel count and package options. The AD8618 specifically offers four amplifiers in a 14-lead surface-mount package, providing a compact solution for multi-channel signal processing applications.

Replacement Considerations

AD8616ARZ-REEL

FAQ

Does the AD8618 suffer from output phase reversal?

No, the AD8618 is immune to phase inversion, even when the input voltage exceeds the maximum common-mode limit.

What is the maximum supply voltage for the AD8618?

The absolute maximum supply voltage rating is 6 V, though it is fully specified for operation between 2.7 V and 5.0 V.