AD8619ARZ-REEL7

Overview

The AD8619ARZ-REEL7 is a quad micro-power, low noise CMOS operational amplifier with rail-to-rail input and output capabilities. It operates from a single supply of 1.8 V to 5.5 V or dual supplies of ±0.9 V to ±2.5 V. Key electrical specifications include a maximum offset voltage of 2.2 mV, a maximum input bias current of 1 pA, and a typical voltage noise density of 25 nV/√Hz at 1 kHz. The device features a gain bandwidth product of 400 kHz, a slew rate of 0.1 V/μs, and a maximum supply current of 50 μA per amplifier across the operating temperature range of -40°C to +125°C.

Feature Summary

• Rail-to-rail input and output operation enables full signal swing in low voltage single-supply systems.
• Micropower consumption with low input bias current minimizes loading effects on high impedance sources.
• Low noise performance supports precision signal conditioning for weak signals.
• Unity gain stability without phase reversal ensures reliable operation when driving capacitive loads.

Applications

• Battery-powered instrumentation
• Multipole filters
• Current shunt sense circuits
• ADC predrivers
• DAC drivers and level shifters

Procurement Notes

Verify that the specific part number matches the required package type and reel configuration. Confirm RoHS compliance status as indicated by the suffix. Ensure the ordering quantity aligns with the manufacturer's standard packaging specifications. Check for any automotive qualification requirements if applicable to the end-use environment.

Selection Notes

Select this component for applications requiring low power consumption alongside precision amplification. The rail-to-rail I/O capability makes it suitable for buffering ADCs and DACs in portable devices. Consider the 400 kHz bandwidth and low noise characteristics for sensor interfaces where signal integrity is critical under tight power constraints.

Part Context

This device belongs to the AD8613/AD8617/AD8619 family of low cost micropower amplifiers. The AD8619 variant specifically provides four independent amplifiers within a single package. It shares core architectural features with the single-channel AD8613 and dual-channel AD8617, offering designers flexibility in channel count while maintaining consistent electrical performance profiles.

Replacement Considerations

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