AD586JRZ

Voltage Reference Overview

The AD586JRZ is a high precision monolithic voltage reference manufactured by Analog Devices Inc. It provides a fixed 5 V output with an initial accuracy of ±20 mV and a temperature coefficient of 25 ppm/°C over the 0°C to 70°C industrial range. The device utilizes a buried Zener diode architecture for low noise performance, typically 4 µV p-p from 0.1 Hz to 10 Hz. It operates within an input voltage range of 10.8 V to 36 V, drawing a quiescent current of approximately 3 mA. The unit is housed in an 8-lead SOIC package and supports sourcing or sinking up to 10 mA.

Voltage Reference Feature Summary

• Laser trimmed for high accuracy and low temperature drift without external components
• Buried Zener design ensures lower noise and drift compared to band gap references
• Includes dedicated noise reduction pin for additional filtering via external capacitor
• Features optional fine-trim capability for precise output calibration

Voltage Reference Applications

• Precision reference for 8-, 10-, 12-, 14-, or 16-bit DACs
• Reference source for successive approximation or integrating ADCs
• Multiplying CMOS DAC applications requiring stable voltage rails
• Stacked configurations for generating multiple precision voltages

Voltage Reference Procurement Notes

Verify the specific grade suffix (J) matches the required initial accuracy and temperature coefficient specifications for your application. Confirm that the SOIC-8 package option aligns with your PCB footprint requirements. Ensure the operating supply voltage remains within the 10.8 V to 36 V range to maintain specified line regulation and performance characteristics.

Voltage Reference Selection Notes

Select this component when a fixed 5 V reference with industry-standard pinout is needed for system upgrades. Consider the J grade for standard industrial temperature ranges. Evaluate the need for the noise reduction pin if low-frequency noise is critical. Verify load regulation requirements against the sourcing and sinking capabilities provided in the datasheet.

Voltage Reference Part Context

The AD586 series represents a significant advancement in monolithic voltage references, offering superior performance over many other 5 V references. It uses an industry-standard pinout, allowing for easy replacement in existing designs. The series includes various grades (J, K, L, M, A, B, S, T) and packages (PDIP, SOIC, CERDIP) to suit different precision and environmental needs.

Voltage Reference Replacement Considerations

Direct replacements include AD586JR, AD586KR, and AD586LR for similar SOIC packaging and functionality. For higher precision requirements, consider AD586MR or AD586BR variants. Ensure any substitute maintains the same pinout compatibility and meets the specific accuracy and temperature drift requirements of the original design.