AD790JN

Overview

The AD790JN is a fast, precision voltage comparator manufactured by Analog Devices Inc. It features a maximum propagation delay of 45 ns and operates from a single 5 V or dual ±15 V supply. The device offers CMOS or TTL compatible outputs with onboard latching functionality. It is available in an 8-pin plastic mini-DIP package (N-8) and supports a temperature range of 0°C to 70°C.

Feature Summary

• Built-in hysteresis and low-glitch output stage minimize unwanted oscillations
• Onboard latch function enables synchronous operation for data acquisition
• Low power dissipation relative to speed performance range
• Wide differential input voltage handling capability

Applications

• Zero-crossing detectors
• Overvoltage detectors
• Pulse-width modulators
• Precision rectifiers
• Discrete A/D converters

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature rating. The AD790JN designation indicates an 8-lead plastic DIP package rated for commercial temperatures. Confirm RoHS compliance status if required by design specifications. Ensure the component matches the exact pinout configuration for the selected package option before integration into the circuit layout.

Selection Notes

Select this component when a general-purpose comparator with high speed and precision is required. The AD790JN is suitable for analog signal processing where low glitch output is critical to prevent supply disturbances. Consider the onboard latch feature if synchronous sampling is necessary. Verify that the single or dual supply requirements align with the system's power architecture.

Part Context

The AD790 series includes multiple performance grades such as J, K, A, B, and S variants. These differ primarily in temperature ranges and offset voltage specifications. The AD790JN specifically belongs to the commercial grade category. Other packages include ceramic CERDIP and SOIC options. The family utilizes Analog Devices' complementary bipolar process technology.

Replacement Considerations

Direct replacement part numbers include AD790JNZ for RoHS-compliant versions in the same package. Alternative package options within the same model line are AD790JR for SOIC packaging. Verify thermal characteristics and pin compatibility when substituting between different package types.