AD8602DRZ

Overview

The AD8602DRZ is a dual-channel precision CMOS operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities, operating on a single supply voltage ranging from 2.7 V to 5.5 V. The device utilizes DigiTrim technology for low offset voltage specifications without laser trimming. Key electrical parameters include a gain-bandwidth product of 8.4 MHz, a slew rate of 6 V/µs at 5 V supplies, and an input bias current of 0.2 pA. It operates within an extended industrial temperature range of -40°C to +125°C and is housed in an 8-lead SOIC surface-mount package.

Feature Summary

• Rail-to-rail input and output architecture maximizes dynamic range in single-supply systems.
• DigiTrim patented post-assembly trimming achieves superior DC precision without laser adjustment.
• CMOS input stage provides extremely low input bias currents suitable for high-impedance sources.
• Unity-gain stable with no phase reversal during overdrive conditions.

Applications

• Current sensing applications including high-side and low-side monitoring
• Barcode scanners and portable instrumentation
• Cellular power amplifier controls
• Multipole filters and integrators
• ASIC input or output buffering

Procurement Notes

Verify the specific grade (A or D) required for your application, as offset voltage specifications vary significantly between grades. Confirm that the 8-lead SOIC package matches your PCB footprint requirements. Ensure the supply voltage remains within the 2.7 V to 5.5 V range to maintain specified performance characteristics. Check for automotive qualification if operating in harsh environments.

Selection Notes

Select this component when low offset voltage and wide bandwidth are critical in a dual-channel configuration. The DigiTrim technology ensures consistent performance across temperature ranges compared to standard CMOS amplifiers. Consider the 8.4 MHz gain-bandwidth product for signal processing tasks requiring moderate speed. Verify that the rail-to-rail output swing meets the interface requirements of downstream ADCs or DACs.

Part Context

The AD8602 is part of the AD860x family, which includes the single-channel AD8601 and quad-channel AD8604 variants. All members share identical core electrical characteristics and utilize the same DigiTrim technology. The DRZ suffix specifically denotes the 8-lead narrow SOIC surface-mount package variant within the dual-channel series.

Replacement Considerations

Direct functional substitutes within the same package include other AD8602 variants such as AD8602AR or AD8602ARM. Cross-family replacements like the OPA2340 offer similar rail-to-rail inputs but may differ in offset voltage specifications and pinout compatibility.