Analog Devices Inc. 5962R9463602VXA

Overview

5962R9463602VXA from DLA Land and Maritime is a radiation-hardened, monolithic silicon precision voltage reference delivering a stable 2.5 V output with ±5 mV initial error at +25°C, -15 to +15 ppm/°C temperature coefficient over -55°C to +125°C, and 3 µV_RMS wideband noise (0.1 Hz–1 kHz). It operates from 4.0 V to 36 V input and supports series/shunt mode operation up to ±10 mA - used in high-resolution ADC/DAC biasing, space-grade telemetry conditioning, and radiation-tolerant power monitoring circuits.

For engineers reviewing the 5962R9463602VXA datasheet, 5962R9463602VXA pinout, 5962R9463602VXA application, or 5962R9463602VXA equivalent, key selection factors include its 100 krad(Si) total ionizing dose (TID) rating, dual-mode (sourcing/sinking) capability, laser-trimmed temperature stability, and CDFP3-F10 hermetic flat-pack packaging for harsh-environment deployment.

Technical Context

This device implements an ultrahigh-precision bandgap reference architecture using two NPN transistors with 12× emitter area ratio to generate a proportional-to-absolute-temperature (PTAT) current across R5, combined with Q7's V_BE to produce a temperature-invariant V_BG. Laser trimming of internal resistors corrects both initial offset and thermal drift.

It features a dedicated TEMP pin providing 1.9 mV/°C linear output (500–620 mV range), enabling simultaneous reference generation and on-chip temperature sensing. The O/P SELECT pin is inactive for device type 02, confirming fixed 2.5 V output configuration without external mode switching.

Key Specifications

Pinout & Package

5962R9463602VXA is packaged in a hermetic CDFP3-F10 (10-terminal bottom-brazed flat pack) per MIL-STD-1835, with metal lid suitable for grounding to reduce EMI in sensitive analog signal chains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with REF5025MDTEP and LM399H, 5962R9463602VXA uniquely combines radiation hardness, integrated temperature sensing, dual-mode operation, and hermetic packaging - making it irreplaceable in space-qualified analog signal chains where component count, reliability, and environmental resilience are co-constrained.

Availability

5962R9463602VXA is available at Aetrix Electronics and suitable for spacecraft power monitoring, high-resolution ADC reference, avionics sensor signal conditioning, and radiation-tolerant DAC biasing requiring stable component supply across extended temperature and radiation environments.

Supply support for 5962R9463602VXA 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

DLA Land and Maritime is a U.S. Department of Defense agency responsible for standard microcircuit drawings and qualified manufacturer listing under MIL-PRF-38535.

This part belongs to the 5962-94636 precision voltage reference family designed specifically for high-reliability defense, aerospace, and space applications demanding radiation hardness, extreme temperature operation, and long-term parametric stability.

FAQ

What is the radiation hardness specification for 5962R9463602VXA?

5962R9463602VXA is rated for 100 krad(Si) total ionizing dose (TID) per MIL-STD-883 method 1019 condition A. This applies specifically to device type 02 and is guaranteed for post-irradiation electrical parameters including output voltage error (±2.5 mV delta), quiescent current (±30 µA delta), and functionality across the full -55°C to +125°C ambient range. The 5962R9463602VXA achieves this through process-level hardening and design techniques validated under DLA oversight.

Can 5962R9463602VXA operate in shunt mode, and what is the minimum shunt current?

Yes, 5962R9463602VXA supports shunt-mode operation with a minimum shunt current of 0.7 mA at +25°C. In shunt configuration, it regulates VOUT by sinking current through the TRIM pin while maintaining 2.5 V output. The device guarantees 75 µV/mA load regulation in shunt mode (1–10 mA range), enabling stable reference generation even with highly variable downstream loads - a key capability for 5962R9463602VXA in fault-tolerant power systems.

What is the function of the TEMP pin on 5962R9463602VXA, and how is it calibrated?

The TEMP pin on 5962R9463602VXA provides a linear 1.9 mV/°C analog output spanning 500–620 mV at +25°C, corresponding to -55°C to +125°C. It is factory-calibrated against the internal bandgap core and requires no external components. This output is fully characterized across temperature and radiation exposure, allowing 5962R9463602VXA to serve simultaneously as a precision reference and temperature transducer - eliminating separate sensor ICs in compact telemetry designs.

Is 5962R9463602VXA pin-compatible with other variants in the 5962-94636 family?

No - 5962R9463602VXA uses case outline X (CDFP3-F10, 10-pin) and device type 02 (fixed 2.5 V), whereas device type 01 (2.5 V/3.0 V selectable) uses the O/P SELECT pin (Pin 8) and is only specified for case outline P (CDIP2-T8, 8-pin). Pin functions differ significantly between outlines and types; therefore, 5962R9463602VXA is not pin-compatible with 5962R9463601VXA or any P-outline variant. Layout reuse is not possible without redesign.

Does 5962R9463602VXA require an external bypass capacitor, and what value is recommended?

Yes, 5962R9463602VXA requires a minimum 1 µF ceramic bypass capacitor between +VIN (Pin 2) and GND (Pin 4). This value ensures unconditional stability across all load conditions and input voltages from 4.0 V to 36 V. Larger values (e.g., 10 µF tantalum in parallel) may further reduce high-frequency noise but are not necessary for stability. The 5962R9463602VXA datasheet explicitly states "no region of possible instability" when this capacitor is used - a critical advantage over many competing references.