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RHF100K1

RHF100K1

STMicroelectronics
Shunt Voltage Reference IC Fixed 1.2V V ±0.15% 12 mA 10-CFlatPack
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Overview

The RHF100K1 is a high-precision radiation-hardened 1.2V fixed shunt voltage reference designed for aerospace and orbital applications. It features an extremely low temperature coefficient of 15 ppm/degC and is designed to maintain 0.08% precision stability even after exposure to 300 krad (Si) total ionizing dose.

Why Choose This Part

This device is immune to SEL at 120 MeV.cm2/mg and is SET characterized, ensuring high reliability in deep space missions. Its extremely low cathode current of 40 uA and long-term stability of 2 ppm/degC over 3000 hours make it ideal for long-duration orbital deployments.

Applications

Satellite Power Systems
Provides a stable voltage reference for telemetry and control systems in LEO, MEO, and GEO satellites.
Space-Grade Data Converters
Acts as an accurate reference for high-resolution ADCs and DACs in radiation-harsh environments.
Orbital Instrumentation
Ensures precise sensor calibration for scientific instruments on spacecraft subjected to high and low dose rate radiation.

Key Specifications

Tolerance +/-0.15%
Output Type Fixed
Mounting Type Surface Mount
Package / Case 10-CFlatPack
Reference Type Shunt
Current - Output 12 mA
Current - Cathode 40 uA
Noise - 10Hz to 10kHz 15.495uVrms
Operating Temperature -55degC ~ 125degC (TA)
Supplier Device Package 10-CFlatPack
Temperature Coefficient 15ppm/degC
Voltage - Output (Min/Fixed) 1.2V

Getting Started

When designing with the RHF100K1, ensure the cathode current stays within the 40 uA to 12 mA range for stable operation. Evaluation should be performed using the Ceramic Flat-10 footprint, following STMicroelectronics' guidelines for radiation-hardened PCB layout and thermal management.

Categories

FPGAs & CPLDs