DG3157BDN-T1-E4

Analog Switches, Multiplexers, Demultiplexers Overview

The DG3157BDN-T1-E4 is a single-pole double-throw (SPDT) analog switch manufactured by Vishay Siliconix. It operates on a single supply voltage ranging from 1.65 V to 5.5 V and features a 300 MHz -3 dB bandwidth. The device utilizes sub-micro CMOS technology to achieve low on-resistance and minimal propagation delay, making it suitable for both analog and digital signal switching. It includes power-down protection and break-before-make switching capabilities. The component is housed in an ultra-small miniQFN-6 package measuring 1 mm x 1.2 mm.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Supports high-speed signal routing with a 300 MHz bandwidth and negligible propagation delay.
• Features power-down safe design to protect circuits during low-power states.
• Provides break-before-make switching to prevent signal shorting during transitions.

Analog Switches, Multiplexers, Demultiplexers Applications

• Bus switching applications requiring high-speed data transfer
• Signal multiplexing and demultiplexing in portable electronics
• Analog and digital signal path selection in communication systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix DN-T1-E4 against official Vishay documentation to confirm the miniQFN-6 package and RoHS compliance status. Ensure that the absence of an internal pull-down resistor on the control pin S aligns with the system logic requirements, as this distinguishes the DG3157B variant from the DG3157A.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a compact SPDT switch is required for signals up to 300 MHz. The DG3157B variant is appropriate for designs where the control pin S does not require an internal pull-down resistor. Verify that the operating voltage range of 1.65 V to 5.5 V matches the system supply rails and that the miniQFN-6 footprint fits the PCB layout constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG3157A/B family of low-voltage, high-speed analog switches. The DG3157B differs from the DG3157A primarily by lacking an internal pull-down resistor on the select pin S. Both variants share identical electrical performance characteristics regarding bandwidth, on-resistance, and switching speeds within the specified temperature range.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The DG3157ADN-T1-E4 is a direct functional substitute within the same package, differing only by the inclusion of an internal pull-down resistor on the control pin S. Other Vishay SPDT switches may serve as alternatives if package compatibility or specific electrical parameters like on-resistance differ significantly from these requirements.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the primary difference between the DG3157A and DG3157B?

The DG3157B does not have an internal pull-down resistor on the control pin S, whereas the DG3157A includes one. All other electrical specifications remain identical.

Does the DG3157BDN-T1-E4 support bidirectional signal flow?

Yes, the switch permits signals with amplitudes up to VCC to be transmitted in either direction between the A, B0, and B1 pins.

What is the maximum bandwidth of this component?

The component offers a -3 dB bandwidth of 300 MHz, making it suitable for high-frequency analog and digital signal switching.