DG421DY+

$5.03

Description：IC SWITCH SPST-NOX2 35OHM 16SOIC
Series：-

SKU:a127d56e40eb Category: Analog Switches, Multiplexers, Demultiplexers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPST-NOX2 35OHM 16SOIC
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube,Tube
Switch Circuit：SPST - NO
Multiplexer/Demultiplexer Circuit：1:01
On-State Resistance (Max)：35Ohm
Channel-to-Channel Matching (ΔRon)：3Ohm (Max)
Voltage - Supply, Single (V+)：10V ~ 30V
Voltage - Supply, Dual (V±)：±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)：250ns, 200ns
-3db Bandwidth：-
Charge Injection：10pC
Channel Capacitance (CS(off), CD(off))：12pF, 12pF
Current - Leakage (IS(off)) (Max)：500pA
Crosstalk：-90dB @ 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：2

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DG421DY+

Overview

The DG421DY+ is a dual single-pole/single-throw (SPST) normally open CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features latchable logic inputs for microprocessor interfacing and operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies. The device guarantees an on-resistance of 35Ω maximum, with a channel-to-channel match of 3Ω maximum and flatness of 4Ω maximum over the signal range. Switching times are 250ns for turn-on and 200ns for turn-off. It offers low charge injection of 15pC maximum, off-leakage current less than 5nA at +85°C, and ESD tolerance of 2000V minimum. The component is housed in a 16-SOIC package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

Features latchable logic inputs that simplify direct interfacing with microprocessors.
Provides guaranteed on-resistance matching between channels and flatness over the signal range.
Supports rail-to-rail signal handling capabilities with single or bipolar power supplies.

Applications

Sample-and-Hold Circuits
Battery-Operated Systems
Audio Signal Routing

Procurement Notes

Verify the specific suffix 'DY+' against the manufacturer's official documentation to confirm the 16-SOIC package and -40°C to +85°C temperature range. Confirm RoHS compliance status as indicated in the ordering information table. Ensure the source document explicitly identifies this part number before procurement.

Selection Notes

Select the DG421DY+ when dual SPST switching with latched control signals is required. It is suitable for applications needing low power consumption and high ESD protection. Verify that the 35Ω on-resistance and 250ns switching speed meet the system timing requirements. Ensure the voltage supply range aligns with the single or bipolar operation specifications.

Part Context

The DG421DY+ belongs to the DG421/DG423/DG425 family of improved low-power CMOS analog switches. This series was redesigned to offer better on-resistance matching and lower leakage currents compared to previous generations. The DG421 specifically provides two SPST switches per package, distinguishing it from the DPST DG425 and SPDT DG423 variants within the same family.

Replacement Considerations

Publicly confirmed substitute part numbers for the DG421DY+ are not available in the provided documentation. Consult the manufacturer's official resources for potential replacements if this component is obsolete.