DG441, DG442

Improved, Quad, SPST Analog Switches

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Active: In Production.


Maxim's redesigned DG441/DG442 analog switches now feature on-resistance matching (4Ω max) between switches and guaranteed on-resistance flatness over the signal range (9Ω max). These low on-resistance switches conduct equally well in either direction. They guarantee low charge injection (10pC max), low power consumption (1.65mW), and an ESD tolerance of 2000V minimum per Method 3015.7. The new design offers lower off-leakage current over temperature (less than 5nA at +85°C).

The DG441/DG442 are quad, single-pole/single-throw (SPST) analog switches. The DG441 has four normally closed switches, and the DG442 has four normally open switches. Switching times are less than 250ns for tON and less than 170ns for tOFF. These devices operate from a single +10V to +30V supply, or bipolar ±4.5V to ±20V supplies. Maxim's improved DG441/DG442 continue to be fabricated with a 44V silicon-gate process.

Data Sheet

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Key Features

New Features
  • Plug-In Upgrades for Industry-Standard DG441/DG442
  • Improved rDS(ON) Match Between Channels(4Ω max)
  • Guaranteed rFLAT(ON) Over Signal Range (9Ω max)
  • Improved Charge Injection (10pC max)
  • Improved Off-Leakage Current Over Temperature (< 5nA at +85°C)
  • Withstand Electrostatic Discharge (2000V min) per Method 3015.7
Existing Features
  • Low rDS(ON) (85Ω max)
  • Single-Supply Operation +10V to +30V
  • Bipolar-Supply Operation ±4.5V to ±20V
  • Low Power Consumption (1.65mW max)
  • Rail-to-Rail Signal Handling
  • TTL/CMOS-Logic Compatible


  • Audio-Signal Routing
  • Battery-Powered Applications
  • Communication Systems
  • Fax Machines
  • Guidance and Control Systems
  • Heads-Up Displays
  • Military Radios
  • Modems
  • Sample-and-Hold Circuits
  • Test Equipment

Key Specifications:

Switches and Multiplexers (Mid and High Voltage)
Part Number Functions Config. Channels Normal Position VSUPPLY (Single)
VSUPPLY (Single)
min max min max max max min max See Notes
DG441  Switch SPST 4 Closed 10 30 4.5 20 85 0.5 250 120 10 16 4 $2.70 @1k
DG442  Open 170 $2.98 @1k
See All Switches and Multiplexers (Mid and High Voltage) (312)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


DG441, DG442: Pin Configurations/Functional Diagrams/Truth Tables
Pin Configurations/Functional Diagrams/Truth Tables

More Information

New Product Press Release   2008-11-25 ]

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Document Ref.: 19-4611 Rev 5; 2009-07-22
This page last modified: 2009-07-22