DG419LDY

Description：IC SWITCH SPDT X 1 35OHM 8SOIC
Series：-

SKU:9b55386876dd Category: Analog Switches, Multiplexers, Demultiplexers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC SWITCH SPDT X 1 35OHM 8SOIC
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Switch Circuit：SPDT
Multiplexer/Demultiplexer Circuit：2:01
On-State Resistance (Max)：35Ohm
Channel-to-Channel Matching (ΔRon)：100mOhm
Voltage - Supply, Single (V+)：9V ~ 36V
Voltage - Supply, Dual (V±)：±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)：-
-3db Bandwidth：-
Charge Injection：15pC
Channel Capacitance (CS(off), CD(off))：8pF, 8pF
Current - Leakage (IS(off)) (Max)：250pA
Crosstalk：-86dB @ 1MHz
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Number of Circuits：1

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DG419LDY

Overview

The DG419LDY is a precision CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated, featuring a single-pole/double-throw (SPDT) configuration. It provides a maximum on-resistance of 35Ω with guaranteed matching of 3Ω and flatness of 4Ω. The device operates on dual supplies ranging from ±4.5V to ±20V or a single supply from +9V to +36V. It supports +3V logic compatibility with input thresholds of 0.8V for low and 2.0V for high. Key electrical parameters include a turn-on time of 175ns, turn-off time of 185ns, off-leakage current under 5nA at +85°C, and charge injection of 15pC. The component is housed in an 8-pin SOIC package and functions within an extended temperature range of -40°C to +85°C.

Feature Summary

+3V Logic-Compatible Digital Inputs
Plug-In Upgrades for Industry-Standard DG417/DG418/DG419 and MAX317/MAX318/MAX319
Power-Supply Sequencing-Free Operation
Rail-to-Rail Analog Signal Handling Capability

Applications

Sample-and-Hold Circuits
Communications Systems
Test Equipment
Battery-Operated Systems
Audio Signal Routing

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm the exact package type and temperature rating. Confirm RoHS compliance status and ensure the source document matches the intended manufacturing origin. Cross-reference part numbers with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when a single-pole/double-throw analog switch with +3V logic compatibility is required. Ensure the application voltage falls within the specified single or dual supply ranges. Verify that the 35Ω on-resistance and switching speeds meet the system's signal integrity requirements. Consider the 8-pin SOIC package dimensions for PCB layout constraints.

Part Context

The DG419L series belongs to a family of precision CMOS analog switches designed as direct replacements for older industry-standard devices. This specific model offers SPDT functionality, distinguishing it from the SPST variants in the same family. The 'L' designation indicates enhanced features such as +3V logic compatibility and sequencing-free operation compared to previous generations.