ST launches QML-V qualified quad LVDS receiver for space
STMicroelectronics has expanded its space-grade portfolio with the RHFLVDS42, a QML-V qualified quad low-voltage differential signalling (LVDS) receiver designed for high-speed, low-power data communication in aerospace and space applications.
The RHFLVDS42 supports data rates of up to 600 Mbps and operates across a supply-voltage range of 2.3 V to 3.6 V. The device conforms to the latest TIA/EIA-644 and JEDEC low-voltage logic and power-supply standards, while maintaining compatibility with legacy CMOS designs.
A wide input common-mode voltage range of -4 V to +5 V helps improve link reliability and robustness against common-mode noise. The device also has an absolute maximum voltage rating of 4.8 V, providing additional resilience against power-supply transients.
Radiation-tolerant design for space applications
The RHFLVDS42 is designed to withstand the demanding radiation environment encountered in space applications. Its heavy-ion performance enables single-event latch-up (SEL)-free operation at an LET of 122.6 MeV·cm²/mg, while single-event transient (SET) and single-event upset (SEU)-free operation is specified at an LET of 61.3 MeV·cm²/mg.
The receiver is qualified to 300 krad(Si) total ionising dose (TID) under the RHA QML-V qualification flow and provides 8 kV electrostatic discharge (ESD) immunity.
The RHFLVDS42 is manufactured at STMicroelectronics’ facility in Rennes, France, using the company’s 130 nm CMOS technology, which has been used in space-related applications for more than a decade.
ST also states that the device meets EAR99 export classification, which can simplify supply-chain arrangements for organisations operating internationally, including in the US and Asia. Export classification should be confirmed for the specific device, order and end-use requirements.
Hermetic package and bare-die option
The RHFLVDS42 operates from -55°C to +125°C and is supplied in a grounded-lid Flat-16 hermetic package. Its flow-through pinout is designed to reduce crosstalk while making efficient use of PCB space.
For applications where size and mass are critical, the receiver is also available as bare die, providing additional flexibility for space-constrained aerospace electronics.
The RHFLVDS42 extends ST’s portfolio of radiation-tolerant interface devices for spacecraft and other systems requiring reliable high-speed data communication in harsh environments.
