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DG721DN-T1-GE4
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Product Detailed Parameters
- Description：IC SWITCH SPST-NOX2 4.5OHM 8TDFN
- Series：-
- Mfr：Vishay Siliconix
- Package：Tape & Reel (TR)
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：4.5Ohm
- Channel-to-Channel Matching (ΔRon)：200mOhm
- Voltage - Supply, Single (V+)：1.8V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：30ns, 35ns
- -3db Bandwidth：366MHz
- Charge Injection：2.2pC
- Channel Capacitance (CS(off), CD(off))：8pF, 9pF
- Current - Leakage (IS(off)) (Max)：250pA
- Crosstalk：-90dB @ 10MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-UFDFN Exposed Pad
- Supplier Device Package：8-TDFN (2x2)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The DG721DN-T1-GE4 is a dual single-pole single-throw (SPST) analog switch IC manufactured by Vishay Siliconix. It operates on a single supply voltage ranging from 1.8 V to 5.5 V and features a TDFN-8 surface-mount package. The device provides a maximum on-resistance of 4.5 Ohms, with a typical power dissipation of 842 mW. Switching performance includes a maximum turn-on time of 30 ns and a maximum turn-off time of 35 ns. It supports a DC switch current of 50 mA and draws a maximum supply current of 2 uA. The component functions within an operating temperature range of -40°C to +85°C.
Feature Summary
- Dual SPST configuration for independent signal path control
- Low on-resistance characteristic suitable for precision applications
- Compatible with low-voltage single-supply operation
Applications
- Signal routing in data acquisition systems
- Audio signal switching circuits
- Instrumentation input multiplexing
Procurement Notes
Verify the Not Recommended for New Design (NRND) status before initiating any new product development projects. Confirm that the TDFN-8 package dimensions align with the target PCB footprint. Ensure the supplier provides valid RoHS compliance documentation. Check for alternative components if long-term availability is required for future production runs.
Selection Notes
Select this component when a dual-channel analog switch with low on-resistance is required for single-supply applications. Verify that the 1.8 V minimum supply voltage meets the system requirements. Consider the 4.5 Ohm on-resistance limit for signal integrity calculations. Evaluate the thermal performance against the 842 mW power dissipation rating under expected load conditions.
Part Context
This part belongs to the DG series of analog switches from Vishay Siliconix. It is functionally related to the DG721DN-GE4 variant, differing primarily in the tape-and-reel packaging suffix. The device serves as a solid-state replacement for mechanical relays in compact electronic designs requiring reliable signal switching.
Replacement Considerations
The DG721DN-GE4 is listed as an alias part number. Verify pinout compatibility and electrical specifications before substituting other dual SPST analog switches from different manufacturers.
