DG444DY-T

Description：IC SWITCH SPST-NCX4 85OHM 16SOIC
Series：-

SKU:06aa9f3c7802 Category: Analog Switches, Multiplexers, Demultiplexers Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPST-NCX4 85OHM 16SOIC
Series：-
Mfr：Renesas Electronics Corporation
Package：Tape & Reel (TR)
Switch Circuit：SPST - NC
Multiplexer/Demultiplexer Circuit：1:01
On-State Resistance (Max)：85Ohm
Channel-to-Channel Matching (ΔRon)：-
Voltage - Supply, Single (V+)：5V ~ 34V
Voltage - Supply, Dual (V±)：±5V ~ 22V
Switch Time (Ton, Toff) (Max)：250ns, 140ns
-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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DG444DY-T

Overview

The DG444DY-T is a monolithic quad single-pole single-throw (SPST) CMOS analog switch manufactured by Renesas Electronics Corporation. It features four independent switches in a 16-pin SOIC-N package, designed for signal routing and multiplexing applications. The device supports single or dual power supplies, operating from +5V to +34V single supply or ±5V to ±20V dual supply. Key electrical parameters include a maximum on-resistance of 85 Ohms, a maximum switching time of 250 ns, and an off-time of 140 ns. It handles a DC switch current of 30 mA with a maximum power dissipation of 640 mW. The component operates within a temperature range of -40°C to +85°C and draws a maximum supply current of 1 µA.

Feature Summary

Integrates four independent SPST analog switches on a single monolithic CMOS chip
Supports both single-ended and split power supply configurations for flexible system design
Features TTL and CMOS compatible digital inputs for direct logic interfacing
Provides low charge injection characteristics suitable for precision sample-and-hold circuits

Applications

Data acquisition systems requiring signal multiplexing
Sample-and-hold circuits in instrumentation
Automatic test equipment signal routing
Communication systems for line termination and switching

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status through official datasheets as manufacturing processes evolve. Check for obsolescence notices from Renesas, as older Siliconix-derived parts may have limited availability. Ensure the SOIC-N package dimensions match your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when four independent analog switches are required in a compact surface-mount package. Compare on-resistance and leakage current specifications against alternative DG44x series variants if higher precision is needed. Verify that the 85 Ohm on-resistance meets the voltage drop requirements of your application. Consider the 34V single-supply limit when designing for high-voltage signal paths.

Part Context

The DG444 belongs to the DG44x family of analog switches originally developed by Siliconix and now produced by Renesas Electronics. This family is known for its robust CMOS construction and compatibility with standard logic families. The DG444 specifically offers four channels, distinguishing it from the dual-channel DG442 and octal-channel DG445 variants within the same series.