ADI 5962-8876403XA
- Ultra-low noise precision op amp — 3 nV/√Hz at 10 Hz, 80 nV p-p (0.1 Hz to 10 Hz)
- A-grade input offset voltage: 25 µV maximum with 0.6 µV/°C maximum drift
- Radiation hardness assured (RHA) — low dose rate tested per MIL-PRF-38535
- High open-loop gain: 1.8 million V/V with 8 MHz gain-bandwidth product
- MIL-STD-883 Class B qualified under SMD 5962-88764 — ceramic SOIC (X) package
- Military temperature range: –55°C to +125°C
The ADI 5962-8876403XA is the radiation hardness assured (RHA) variant of the OP27 military family under SMD 5962-88764 — device type 03, A-grade accuracy, in a ceramic SOIC package. It shares the same fundamental precision low-noise amplifier architecture as the 5962-8876401LA — 3 nV/√Hz noise density, 25 µV maximum input offset voltage, 0.6 µV/°C maximum drift, and 1.8 million V/V open-loop gain — but adds low dose rate radiation testing that qualifies it for space and radiation-intensive defense environments where a standard MIL-STD-883 screening is not sufficient.
The distinction between device type 01 and device type 03 in the SMD 5962-88764 family is entirely in the radiation qualification. The 5962-8876403XA has been subjected to low dose rate irradiation testing, characterizing its performance degradation under the chronic, low-intensity radiation exposure typical of satellite orbits and space mission profiles — a test condition that standard high dose rate testing does not adequately simulate. For space payload designers and engineers working on radiation-tolerant defense electronics, this qualification data is the deciding factor. The ceramic SOIC package provides the hermetic sealing required for space and military harsh-environment applications in a surface-mount-compatible form factor.
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For engineers designing precision analog signal chains in radiation environments, the standard MIL-STD-883 qualification is a necessary starting point — not a sufficient endpoint. Low dose rate radiation effects, which dominate the degradation of linear ICs in space and certain defense environments, are not captured by the high dose rate testing that standard 883 screening applies. The ADI 5962-8876403XA addresses this directly: it is the RHA-qualified device type in the SMD 5962-88764 OP27 family, processed to MIL-STD-883 Class B with the addition of low dose rate irradiation testing that characterizes its behavior under realistic space mission radiation profiles.
5962-8876403XA vs 5962-8876401LA: Choosing the Right OP27 Military Variant
Both devices are precision low-noise OP27 amplifiers under the same SMD drawing, with identical A-grade electrical specifications. The selection comes down to radiation qualification and package format:
| 5962-8876403XA | 5962-8876401LA | |
|---|---|---|
| Device Type | 03 (RHA) | 01 (Standard) |
| Radiation Testing | Low Dose Rate RHA | Standard MIL-STD-883 |
| Package | Ceramic SOIC (X) | TO-99 Metal Can (L) |
| Mount Style | Surface Mount | Through-Hole |
| Best For | Space / RHA programs | Standard military programs |
| Offset Voltage (max) | 25 µV (A grade) | 25 µV (E grade) |
For programs operating in space orbit, high-altitude environments, or nuclear-hardened defense platforms where total ionizing dose and low dose rate effects must be characterized, the 5962-8876403XA is the correct procurement path. For standard military programs without RHA requirements, the 5962-8876401LA in the hermetic TO-99 package provides the same precision performance at standard MIL-STD-883 qualification.
5962-8876403XA in Space and Radiation-Tolerant Signal Chains
The OP27’s combination of low noise and precision offset performance makes it a common choice as the input amplification stage in space payload instrumentation — ahead of ADCs where the noise floor and offset drift of the amplifier directly determine the system’s measurement accuracy over the mission lifetime. In radiation environments, the 5962-8876403XA provides the additional assurance that its noise and offset specifications will remain within bounds as total ionizing dose accumulates. For designs that also require qualified precision referencing, the 5962-8866302LA AD584S pin-programmable voltage reference and the 5962-9078501MLA AD780S are natural companion components in a fully qualified space-grade analog signal chain.
Sourcing the ADI 5962-8876403XA
RHA-qualified linear ICs are among the most supply-constrained categories in military and space electronics — production volumes are small, qualified sources are limited, and lead times can be significant. We maintain verified 5962-8876403XA inventory with full lot traceability, low dose rate test data, MIL-STD-883 certificate of conformance, and anti-counterfeit inspection. For space programs with long procurement lead times and qualification documentation requirements, early engagement with our team is recommended. Contact us today to confirm availability and request a quote for the ADI 5962-8876403XA.
- RHA device type 03 — low dose rate tested for space and chronic radiation environment qualification
- A-grade electrical performance identical to standard military OP27A — no noise or accuracy tradeoff for RHA qualification
- Ceramic SOIC package enables surface-mount board assembly in radiation-hardened designs
- 1/f corner frequency of 2.7 Hz extends precision noise performance into the sub-10 Hz range
- Unity-gain stable — no external compensation required in any closed-loop configuration
- Full low dose rate test data and lot traceability documentation available on every order
- Export-compliant shipping for space and defense program procurement
- Companion RHA qualified products available for complete space-grade signal chain sourcing
Frequently Asked Questions (FAQ)
What Is the ADI 5962-8876403XA and How Does It Differ From the 5962-8876401LA?
The 5962-8876403XA is device type 03 under SMD 5962-88764 — the RHA (Radiation Hardness Assured) variant of the OP27A military op amp, with low dose rate irradiation testing added to the standard MIL-STD-883 Class B qualification. The 5962-8876401LA is device type 01 — the standard military variant without RHA testing, in a TO-99 metal can package. Both carry A-grade electrical specifications with 25 µV maximum input offset voltage.
What Is Low Dose Rate Radiation Testing and Why Does It Matter?
Standard high dose rate testing irradiates devices quickly to simulate total ionizing dose effects, but linear ICs often show enhanced degradation when exposed to the same total dose at low dose rates — as experienced in space orbits. This “enhanced low dose rate sensitivity” (ELDRS) means a device that passes high dose rate testing may fail at the dose rates it actually experiences in orbit. Low dose rate testing characterizes this behavior, making it essential for space and long-duration radiation environment qualification.
What Is the Package Difference Between the XA and LA Variants?
The 5962-8876403XA uses a ceramic SOIC (X package) — a surface-mount hermetic package. The 5962-8876401LA uses an 8-lead TO-99 hermetic metal can (L package) — a through-hole package. For space applications where surface-mount assembly is standard on modern space-grade PCBs, the ceramic SOIC of the 5962-8876403XA is typically preferred.
Is the 5962-8876403XA Unity-Gain Stable?
Yes. Like all OP27 variants, the 5962-8876403XA is unity-gain stable and requires no external frequency compensation in any closed-loop configuration. This applies across the full military temperature range and throughout the device’s radiation exposure lifetime.
How Do I Request a Quote for the ADI 5962-8876403XA?
Submit an inquiry through our website contact form or email our sales team directly. We will respond within 24 hours with pricing, availability, lead time, and available lot traceability documentation — and can discuss long-term supply agreements for space and defense production programs.