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RHF1009AK1

RHF1009AK1

STMicroelectronics
Shunt Voltage Reference IC Adjustable 2.5V 5.5 VV 10-CFlatPack
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Overview

The RHF1009AK1 is a radiation-hardened adjustable shunt voltage reference designed for aerospace and satellite applications. It provides a stable output voltage between 2.5V and 5.5V with a 0.2 percent initial accuracy. This device is specifically engineered to resist Single Event Latch-up (SEL) and is characterized for Total Ionizing Dose (TID) up to 300 krad.

Why Choose This Part

The RHF1009AK1 excels in radiation environments, featuring SEL-free performance up to 120 MeV.cm2/mg and stability under high dose rates. It remains stable across its entire 60uA to 12mA operating current range even when driving capacitive loads. Its ceramic Flat-10 package ensures high reliability in demanding thermal and mechanical conditions.

Applications

Satellite Power Subsystems
Providing precise reference voltages for DC-DC converters and voltage regulators in high-radiation orbital environments.
Space-Grade Data Converters
Serving as a low-noise, stable voltage reference for high-resolution ADCs and DACs used in satellite instrumentation.
Launch Vehicle Avionics
Ensuring reliable operation in harsh temperature extremes from -55C to 125C during atmospheric exit.
Radiation-Hardened Sensor Interfaces
Providing bias for sensors in deep space missions where ELDRS-free performance up to 300 krad is required.

Key Specifications

Output Type Adjustable
Mounting Type Surface Mount
Package / Case 10-CFlatPack
Reference Type Shunt
Operating Temperature -55degC ~ 125degC
Voltage - Output (Max) 5.5 V
Supplier Device Package 10-CFlatPack
Temperature Coefficient 30ppm/degC
Voltage - Output (Min/Fixed) 2.5V

Getting Started

When designing with the RHF1009AK1, use two external resistors to set the output voltage between 2.5V and 5.5V. To ensure flight readiness, designers should transition from this Engineering Model to the QML-V qualified flight variants like the RHF1009AK01V. Reference the STMicroelectronics radiation report for specific Single Event Transient (SET) characterization data relevant to your mission profile.

Categories

FPGAs & CPLDs