DS90C032E-QML

Overview

The DS90C032E-QML is a quad CMOS differential line receiver designed for high-speed point-to-point interfaces. It accepts low voltage differential signals and translates them to CMOS output levels. The device operates within a supply voltage range of +4.5V to +5.5V, with a typical operating voltage of +5.0V. It supports data rates up to 155.5 Mb/s and features a propagation delay between 1.0 ns and 8.0 ns. Differential skew is limited to 3.0 ns, while chip-to-chip skew is 7.0 ns. The unit includes TRI-STATE functionality and failsafe protection for open or terminated inputs. It is qualified for military applications with radiation hardness assured against total ionizing dose and single event latch-up.

Feature Summary

• Single Event Latchup (SEL) immune up to 120 MeV-cm²/mg
• High impedance LVDS inputs that maintain power-off state
• Pin compatible with DS26C32A standard
• Compatible with IEEE 1596.3 SCI LVDS standard

Applications

• Military and defense point-to-point interface applications
• Space-based systems requiring radiation tolerance
• High speed serial communication links replacing pseudo-ECL devices

Procurement Notes

Verify the specific ordering suffix to confirm package type and material composition. The DS90C032E-QML designation corresponds to an LCCC package variant. Confirm radiation test reports are available if required for mission assurance. Ensure compliance with MIL-STD-883 Group A inspection requirements during acceptance testing. Check for updated Package Option Addendum details regarding lead finish and moisture sensitivity ratings prior to procurement.

Selection Notes

Select this component when radiation hardness and high-speed differential signaling are required in a +5V system. Compare propagation delay and skew specifications against system timing budgets. Verify that the LCCC package dimensions fit the mechanical constraints. Consider external biasing requirements if the application involves terminated lines in high noise environments. Ensure the driver offset voltage aligns with the receiver common-mode input range.

Part Context

This part belongs to the DS90C032QML family of LVDS receivers. It serves as the companion receiver to the DS90C031 driver. The QML suffix indicates qualification for military standards. Other variants include ceramic flatpack options like the DS90C032W-QMLV. The device replaces older pseudo-ECL technologies in high-performance computing and aerospace applications.

Replacement Considerations

The DS90C032B offers commercial grade performance but lacks radiation qualification. The DS90LV032ATMX provides higher data rates at 3.3V operation. For space applications, verify if the DS90C032QML-SP meets specific orbital requirements. Pin compatibility exists with the DS26C32A for legacy board upgrades.