DS90C031WGRQMLV

Overview

The DS90C031WGRQMLV is a radiation-hardened quad CMOS differential line driver designed for high-speed, low-power applications. It accepts TTL/CMOS input levels and converts them to ±350 mV differential LVDS signals. The device guarantees immunity to 100 krad(Si) total ionizing dose and features fail-safe logic for floating inputs. It supports TRI-STATE functionality to reduce idle power consumption to a typical 11 mW. Operating conditions include a supply voltage range of +4.5 V to +5.5 V and an extended temperature range from -55°C to +125°C.

Feature Summary

• Radiation guaranteed up to 100 krad(Si) with single-event latch-up immunity
• Low power dissipation with TRI-STATE capability reducing idle current significantly
• Fail-safe logic ensures defined output states during input floating conditions
• High impedance LVDS outputs during power-off to minimize bus loading

Applications

• Military and defense avionics systems
• Space-based satellite communication interfaces
• High-speed point-to-point data links in harsh environments

Procurement Notes

Verify the specific ordering suffix against the manufacturer's package option addendum to confirm the exact ceramic flatpack configuration and lead finish. Ensure that the procurement channel provides traceability documentation required for QML-certified components. Confirm that the delivered units match the specified military or space qualification standards before integration into critical circuits.

Selection Notes

Select this component when radiation tolerance and wide temperature operation are mandatory requirements. Compare propagation delay specifications against system timing budgets to ensure signal integrity. Verify that the companion receiver matches the LVDS signaling standard. Consider the thermal resistance characteristics of the CFP package for adequate heat dissipation in enclosed military enclosures.

Part Context

This part belongs to the DS90C031QML family of LVDS drivers. It serves as a robust alternative to standard pseudo-ECL devices in environments where electronic failure due to radiation is a primary concern. The device maintains pin compatibility with industry-standard RS-422 drivers while offering superior noise immunity and lower power consumption.

Replacement Considerations

Public confirmed substitute part numbers: 5962-9583301Q2A, 5962R9583301VFA, 5962R9583301VZA.