DG509BEN-T1-GE4

Overview

The DG509BEN-T1-GE4 is a dual 4-channel differential analog multiplexer fabricated on an enhanced SG-II CMOS process. It connects one of four differential inputs to a common dual output via a 2-bit binary address (A0, A1). The device features break-before-make switching and an enable function for stacking. It operates with single or dual power supplies ranging from ±5 V to ±20 V, or up to 44 V absolute maximum rating. Key electrical parameters include a maximum on-resistance of 380 Ω at ±15 V, a -3 dB bandwidth of 250 MHz, off-isolation of -81 dB at 1 MHz, and crosstalk of -88 dB at 1 MHz. Charge injection is typically 2 pC. It supports an extended operating temperature range from -40 °C to +125 °C in a 16-lead miniQFN package.

Feature Summary

• Dual 4-channel differential configuration with 2-bit binary addressing
• Break-before-make switching action minimizes momentary crosstalk
• Enhanced SG-II CMOS process reduces charge injection and leakage
• TTL-compatible control inputs across the full specified temperature range

Applications

• High speed and high precision data acquisition systems
• Audio signal switching and routing
• Automated test equipment (ATE) systems
• Avionics and medical instrumentation

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and compliance status. The 'EN' suffix denotes the 16-lead miniQFN package, while 'GE4' indicates RoHS compliance. Confirm availability through authorized distributors as production status may vary. Ensure the selected variant matches the required thermal and mechanical specifications for the target application.

Selection Notes

Select this component for applications requiring differential signal routing with low distortion. Verify that the supply voltage does not exceed the 44 V absolute maximum rating. Consider the 380 Ω maximum on-resistance and 250 MHz bandwidth when designing for high-frequency signals. Ensure the PCB layout accommodates the miniQFN footprint dimensions and thermal requirements for the intended operating environment.

Part Context

This part belongs to the Vishay Siliconix DG508B/DG509B family of precision analog multiplexers. The DG509B specifically provides dual 4-channel functionality, contrasting with the DG508B's single 8-channel configuration. Both devices share the same enhanced CMOS process and pinout compatibility within their respective channel counts, offering superior performance over legacy versions like the ADG509A.

Replacement Considerations

Public datasheets list ADG509A, DG509A, and HI-509 as comparable alternatives. Verify pin compatibility and electrical parameter alignment before substitution.