AD586AR-REEL

Voltage Reference Overview

The AD586AR-REEL is a high precision monolithic voltage reference manufactured by Analog Devices Inc. It provides a fixed 5 V output with an initial accuracy of ±5 mV and a temperature coefficient of 15 ppm/°C across the industrial range of -40°C to +85°C. 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, draws a quiescent current of approximately 3 mA, and can source or sink up to 10 mA. The component is housed in an 8-lead SOIC package.

Voltage Reference Feature Summary

• Laser trimmed for high initial accuracy and low temperature drift without external components
• Buried Zener diode 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 for successive approximation or integrating ADCs with up to 14 bits of accuracy
• Multiplying CMOS DACs or ADCs requiring stable 5 V reference
• Stacked configurations for generating multiple precision voltages (e.g., 5 V, 10 V, 15 V)
• Precision current sources and high current supplies when paired with external transistors

Voltage Reference Procurement Notes

Verify that the specific ordering suffix corresponds to the required reel quantity and RoHS compliance status. Confirm the package type matches the PCB footprint requirements. Ensure the selected grade meets the necessary temperature range and accuracy specifications for the target application environment before finalizing procurement.

Voltage Reference Selection Notes

Select the AD586AR variant specifically for industrial temperature applications ranging from -40°C to +85°C. Choose this model over commercial grades if extended temperature stability is required. Consider the M, S, or T grades only if higher accuracy or wider temperature ranges are needed, as they offer different drift characteristics. Verify that the system supply voltage remains within the 10.8 V to 36 V operating window.

Voltage Reference Part Context

The AD586 series represents a significant advancement in monolithic voltage references, utilizing proprietary ion-implanted buried Zener technology. This approach offers superior noise and drift performance compared to standard band gap references. The device family includes various grades (J, K, L, A, B, M, S, T) offering different combinations of accuracy and temperature range, all sharing a common industry-standard pinout for easy system upgrades.

Voltage Reference Replacement Considerations

Direct replacements include other AD586 variants such as AD586KRZ-REEL7 or AD586LRZ-REEL7, provided the temperature range and accuracy specifications align with the design requirements. Ensure any substitute maintains the same 8-lead SOIC package and pinout compatibility.