DG9424DQ-T1-E3

Overview

The DG9424DQ-T1-E3 is a low voltage, dual supply, low on-resistance quad single-pole-single-throw analog switch manufactured by Vishay Siliconix. It operates on single supplies from 2.7 V to 12 V or dual supplies of ±3 V to ±6 V. The device features an on-resistance (RDS(on)) of 1.7 Ω typical and 4 Ω maximum at room temperature with a 12 V single supply. Switching times are fast, with turn-on (tON) at 42 ns and turn-off (tOFF) at 28 ns under standard conditions. It offers minimal insertion loss (-3 dB at 190 MHz), excellent crosstalk, and off-isolation performance.

Feature Summary

• BiCMOS wafer fabrication technology enables operation on both single and dual power supplies.
• Provides flat on-resistance over the entire analog signal range for low signal errors and distortion.
• Features break-before-make switching action to prevent signal overlap during channel transitions.
• Compatible with TTL and CMOS logic levels for simple interfacing.

Applications

• Automatic test equipment
• Data acquisition systems
• Communication systems
• ADC systems
• Audio signal routing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure that the component meets all relevant environmental compliance standards required for the intended application before finalizing procurement decisions.

Selection Notes

Select this component when low on-resistance and high-speed switching are critical requirements. Consider the operating voltage range and the specific control logic polarity (DG9424 vs DG9425) to ensure compatibility with the system design. Evaluate thermal dissipation capabilities based on the expected load current and ambient temperature conditions.

Part Context

This part belongs to the DG942x series of low voltage precision monolithic quad SPST analog switches. The series includes variants like the DG9425 and DG9426, which differ in control logic and switch configuration. These devices are designed for applications requiring high performance in audio and video signal switching environments.

Replacement Considerations

Direct substitutes within the same family include DG9425DQ-T1-E3 and DG9426DQ-T1-E3. Verify functional differences such as control logic inversion or normally closed switch configurations before implementing any replacement.

FAQ

What is the difference between DG9424 and DG9425?

The DG9424 and DG9425 respond to opposite control logic states. When the input is low, one switch turns on while the other turns off, and vice versa.

Does the DG9424 support dual supply operation?

Yes, the DG9424 can operate on dual supplies ranging from ±3 V to ±6 V, in addition to single supplies from 2.7 V to 12 V.

What is the typical charge injection value?

The typical charge injection is 38 pC at room temperature with a 12 V single supply and 1 nF load capacitance.