DG445DY-T1-E3

$2.13

Description：IC SWITCH SPST-NOX4 85OHM 16SOIC
Series：-

SKU:c4d23d11d042 Category: Analog Switches, Multiplexers, Demultiplexers Brand: Vishay Siliconix

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPST-NOX4 85OHM 16SOIC
Series：-
Mfr：Vishay Siliconix
Package：Tape & Reel (TR),Cut Tape (CT)
Switch Circuit：SPST - NO
Multiplexer/Demultiplexer Circuit：1:01
On-State Resistance (Max)：85Ohm
Channel-to-Channel Matching (ΔRon)：-
Voltage - Supply, Single (V+)：5V ~ 36V
Voltage - Supply, Dual (V±)：±5V ~ 20V
Switch Time (Ton, Toff) (Max)：250ns, 210ns
-3db Bandwidth：-
Charge Injection：-1pC
Channel Capacitance (CS(off), CD(off))：4pF, 4pF
Current - Leakage (IS(off)) (Max)：500pA
Crosstalk：-100dB @ 1MHz
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-SOIC (0.154", 3.90mm Width)
Supplier Device Package：16-SOIC
Number of Circuits：4
Grade：-
Qualification：-

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DG445DY-T1-E3

Overview

The DG445DY-T1-E3 is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Vishay Siliconix. It features four independent switches with normally open logic, designed for high-speed and low-error signal switching. The device operates on single supplies from +5 V to +36 V or dual supplies from ±5 V to ±20 V. Key electrical parameters include a maximum drain-source on-resistance of 85 Ω at room temperature, a typical turn-on time of 120 ns, and a maximum turn-off time of 210 ns. It exhibits low charge injection of -1 pC and minimal power consumption.

Feature Summary

TTL and CMOS compatible digital inputs simplify interfacing with standard logic families.
High-voltage silicon-gate process with an epitaxial layer prevents latch-up and supports wide supply ranges.
Minimized charge injection on the drain terminal reduces pedestal errors in sample-and-hold applications.
Bilateral switch conduction ensures equal performance for AC or bidirectional signals.

Applications

Sample-and-hold circuits
Data acquisition systems
Audio switching
Battery powered systems

Procurement Notes

Verify the specific ordering suffix 'E3' confirms lead-free status and RoHS compliance as per Vishay standards. Confirm the 'T1' designation indicates reel packaging suitable for automated surface-mount assembly. Ensure the component matches the SOIC-16 narrow package dimensions required for the target PCB footprint.

Selection Notes

Select this part when a normally open configuration is required, distinguishing it from the DG444 which offers a normally closed function. Verify that the 85 Ω on-resistance meets the signal integrity requirements for the specific application voltage range. Ensure the operating temperature range of -40 °C to +85 °C aligns with the environmental conditions of the final system.

Part Context

The DG445 series serves as a direct upgrade to the legacy DG211 and DG212 devices, offering improved switching speeds and lower power consumption. It belongs to the DG family of monolithic CMOS analog switches, sharing functional similarities with the DG444 but differing in logic polarity. The device utilizes advanced silicon-gate technology for enhanced reliability and performance.

Replacement Considerations

DG444DY-T1-E3: Identical specifications except for normally closed logic instead of normally open.

FAQ

What is the difference between the DG444 and DG445?

The DG444 has a normally closed function, while the DG445 has a normally open function. All other electrical characteristics and pinouts are identical.