Analog Devices Inc. AD580SH

Overview

AD580SH from Analog Devices is a hermetically sealed, 3-terminal bandgap voltage reference delivering a precision 2.500 V ±25 mV output over –55°C to +125°C, with 55 ppm/°C temperature coefficient, 1.5 mA max quiescent current, and TO-52 metal-can package - used as a stable reference for 12-bit DACs like AD7542 in single 5 V supply systems.

For engineers reviewing the AD580SH datasheet, AD580SH pinout, AD580SH application, or AD580SH equivalent, this page delivers verified specs, MIL-STD-883B-compliant thermal stability data, load regulation performance under 10 mA, noise characteristics (8 µV p-p, 0.1–10 Hz), and real-world use cases in aerospace-grade data acquisition and low-power converter biasing.

Technical Context

The AD580SH implements a laser-trimmed bandgap reference architecture using two bipolar transistors operated at different current densities to generate a compensating ΔV_BE term, summed with V_BE to yield a stable 2.5 V output. Its internal circuit requires no external components for regulation.

It operates across 4.5 V to 30 V input range while maintaining output accuracy within ±25 mV over full military temperature range (–55°C to +125°C), with guaranteed long-term stability of ≤250 µV and line regulation of ≤2 mV over 7–30 V input variation.

Key Specifications

Pinout & Package

AD580SH uses a hermetic TO-52 metal-can package (H-03A), 0.250" diameter × 0.195" height, with three terminals arranged in bottom-view configuration: +E (anode/input), –E (cathode/ground), and EOUT (output). The can body is electrically connected to –E.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision voltage reference applications.

Compared with REF02AH and LM399H, the AD580SH uniquely balances military-grade reliability, 2.5 V compatibility with standard DACs, and low-quiescent-current operation - making it the optimal choice for embedded systems where hermetic packaging, single-supply operation, and long-term drift control are jointly critical.

Availability

AD580SH is available at Aetrix Electronics and suitable for aerospace data acquisition, industrial process controllers, and military avionics requiring stable component supply with full traceability and extended lifecycle support.

Supply support for AD580SH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets since 1965.

The AD580 product line delivers laser-trimmed, temperature-compensated bandgap references optimized for high-accuracy data conversion in demanding environments - especially where MIL-STD-883B compliance and hermetic packaging are required.

FAQ

What is the maximum input voltage rating for AD580SH?

The AD580SH has an absolute maximum input voltage rating of 40 V, as specified in Table 3 of the Rev. B datasheet. Operation above this voltage risks permanent damage. For reliable long-term performance, the recommended operating input range remains 4.5 V to 30 V per the electrical specifications - ensuring stable 2.500 V output while preserving the device's 55 ppm/°C temperature coefficient and 250 µV long-term stability.

Is AD580SH compatible with 5 V-only systems?

Yes, AD580SH is fully compatible with 5 V-only systems. Its minimum operating input voltage is 4.5 V, and it delivers a stable 2.500 V ±25 mV output across the entire 4.5–30 V range. This makes AD580SH ideal for microprocessor-based data converters such as the AD7542 DAC, which operate from a single 5 V supply - eliminating the need for auxiliary ±15 V rails traditionally required by older reference architectures.

Does AD580SH require external capacitors or resistors to function?

No, AD580SH requires no external components to operate. As a true 3-terminal voltage-in/voltage-out reference, it functions with only +E, –E, and EOUT connections. The internal bandgap circuitry and laser-trimmed thin-film resistors provide full regulation and compensation. External 0.1 µF ceramic decoupling at +E is recommended for noise suppression but is not mandatory for basic functionality - a key advantage over 2-terminal shunt references or discrete Zener solutions.

What does the "/883B" suffix indicate in AD580SH/883B?

The "/883B" suffix denotes full compliance with MIL-STD-883B, Method 5005 - including temperature cycling, mechanical shock, vibration, and hermeticity testing. AD580SH/883B undergoes additional screening beyond standard AD580SH, ensuring suitability for defense, aerospace, and other high-reliability applications. Both share identical electrical specs, but only the /883B version carries the qualified test documentation required for DoD procurement.

How does AD580SH compare to Zener-based references in terms of temperature behavior?

Unlike classical Zener references that exhibit nonlinear "butterfly" or "S-curve" voltage vs. temperature behavior, AD580SH uses a bandgap architecture producing a quasi-parabolic characteristic. This enables guaranteed maximum deviation over the full –55°C to +125°C range (e.g., ±25 mV), rather than only at discrete test temperatures. As a result, AD580SH provides predictable, monotonic drift - critical for closed-loop systems where reference error directly impacts control accuracy.