AD790JR-REEL

Overview

The AD790JR-REEL is a fast, precision voltage comparator manufactured by Analog Devices Inc. It operates from a single 5 V or dual ±15 V supply and features a maximum propagation delay of 45 ns. The device includes an onboard latch for synchronous operation and delivers CMOS or TTL compatible outputs. It supports a maximum differential input voltage of 15 V and dissipates only 60 mW of power. The component is housed in an 8-pin SOIC package and is supplied in tape and reel format.

Feature Summary

• Features a low-glitch output stage that minimizes current spikes and reduces power supply disturbances to prevent unwanted oscillations.
• Incorporates built-in hysteresis to enhance stability when processing slow, low-level signals or large amplitude dynamic inputs.
• Includes a latching function that retains the comparator decision at the output for applications requiring synchronous data capture.

Applications

• Zero-Crossing Detectors
• Overvoltage Detectors
• Pulse-Width Modulators
• Precision Rectifiers

Procurement Notes

Verify the specific ordering suffix to confirm the packaging configuration, as the REEL designation indicates tape and reel delivery per EIA-481A standards. Ensure the selected temperature grade matches the operational environment requirements. Confirm RoHS compliance status if environmental regulations apply to the manufacturing process. Cross-reference the datasheet revision to ensure all electrical specifications align with the production batch.

Selection Notes

Select this component for general-purpose analog signal processing where high speed and precision are required. The ability to operate from a single 5 V supply while accepting ground-referred inputs offers design flexibility not found in many other comparators. The wide differential input range allows direct interfacing with large amplitude signals without additional clamping circuitry. Consider the onboard latch feature if synchronous operation is necessary for the data acquisition system.

Part Context

The AD790 series utilizes Analog Devices' Complementary Bipolar (CB) process to achieve a combination of fast response time and outstanding input voltage resolution. This technology enables the device to handle both slow, low-level signals and fast, large-amplitude signals effectively. The series is available in multiple performance grades covering commercial, industrial, and military temperature ranges, ensuring reliability across diverse operating conditions.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.