DG421DJ

$0.99

Description：IC SW DUAL ANLG CMOS LTCH 16-DIP
Series：-

SKU:7481346ae5d4 Category: Analog Switches, Multiplexers, Demultiplexers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC SW DUAL ANLG CMOS LTCH 16-DIP
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Switch Circuit：-
Multiplexer/Demultiplexer Circuit：-
On-State Resistance (Max)：-
Channel-to-Channel Matching (ΔRon)：-
Voltage - Supply, Single (V+)：-
Voltage - Supply, Dual (V±)：-
Switch Time (Ton, Toff) (Max)：-
-3db Bandwidth：-
Charge Injection：-
Channel Capacitance (CS(off), CD(off))：-
Current - Leakage (IS(off)) (Max)：-
Crosstalk：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Number of Circuits：-

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DG421DJ

Overview

The DG421DJ is a dual single-pole/single-throw (SPST) CMOS analog switch housed in a 16-pin plastic DIP package. It operates from a single +10V to +30V supply or bipolar ±4.5V to ±20V supplies, supporting rail-to-rail signal handling. The device features latchable logic inputs for simplified microprocessor interfacing and guarantees an on-resistance of 35Ω maximum with a matching tolerance of 3Ω between channels. It provides fast switching times of 250ns turn-on and 200ns turn-off, low power consumption of 35µW maximum, and charge injection of 15pC maximum.

Feature Summary

Features latchable logic inputs that simplify direct interfacing with microprocessors.
Provides guaranteed on-resistance matching of 3Ω maximum between the two switches.
Supports rail-to-rail signal handling capabilities across the full supply range.
Delivers fast switching speeds with low power consumption suitable for battery-powered applications.

Applications

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

Procurement Notes

Verify the specific suffix 'DJ' corresponds to the 16-pin Plastic DIP package and the -40°C to +85°C operating temperature range. Confirm the component status as obsolete or discontinued before initiating procurement actions. Ensure compatibility with existing PCB footprints designed for standard 16-pin DIP configurations.

Selection Notes

Select this component when dual SPST switching with latched control signals is required. Verify that the application can accommodate the specified 35Ω maximum on-resistance and 15pC charge injection limits. Ensure the system design supports the necessary bipolar or single-supply voltage ranges for proper operation.

Part Context

This part belongs to the DG421/DG423/DG425 family of improved low-power CMOS analog switches. The DG421 variant specifically provides two independent SPST switches within a single package. It was redesigned to offer better on-resistance flatness and lower off-leakage current compared to previous industry-standard versions.