AD790JRZ-REEL

Overview

The AD790JRZ-REEL is a fast, precision voltage comparator manufactured by Analog Devices Inc. in an 8-Lead SOIC package with tape and reel packaging. It supports single 5 V or dual ±15 V supply operation. Key electrical parameters include a maximum propagation delay of 45 ns, a maximum input offset voltage of 250 µV, and a maximum input hysteresis voltage of 500 µV. The device features a low glitch output stage compatible with CMOS or TTL logic levels and includes an onboard latch function for synchronous operation.

Feature Summary

• Features a low-glitch output stage that minimizes current spikes and power supply disturbances to prevent unwanted oscillations.
• Incorporates built-in hysteresis to ensure stable switching when input signals slowly cross the reference level.
• Supports ground-referred inputs in single-supply mode and handles large differential input voltages in dual-supply mode.
• Includes a latch function to retain the comparator decision at the output for synchronous system applications.

Applications

• Zero-Crossing Detectors
• Overvoltage Detectors
• Precision Rectifiers

Procurement Notes

Verify the specific suffix 'JRZ-REEL' against the manufacturer's ordering guide to confirm the 8-Lead SOIC_N package option and commercial temperature range (0°C to 70°C). Ensure the procurement specification matches the required RoHS compliance status indicated by the 'Z' suffix. Cross-reference the datasheet revision history to confirm the document version aligns with the component batch being acquired.

Selection Notes

Select this component for general-purpose analog signal processing where high speed and precision are required. The AD790 is suitable for data acquisition systems needing a versatile comparator with low power dissipation relative to its speed class. Consider the onboard latch if synchronous operation is necessary. Evaluate the available performance grades based on the specific operating temperature requirements of the target application environment.

Part Context

The AD790 is a monolithic comparator fabricated using Analog Devices' Complementary Bipolar (CB) process. This technology enables a combination of fast response time and outstanding input voltage resolution. The device architecture provides symmetric output drive capability and controlled switching to maintain stability. It is designed to interface directly with digital logic families without requiring external clamping components.

Replacement Considerations

Public confirmed substitute part numbers: AD790JR, AD790JRZ, AD790JRZ-REEL7.