DG441: Monolithic, Quad SPST, CMOS Analog Switches

The DG441 and DG442 monolithic CMOS analog switches are drop-in replacements for the popular DG201A and DG202 series devices. They include four independent single pole single throw (SPST) analog switches, TTL and CMOS compatible digital inputs, and a voltage reference for logic thresholds.

These switches feature lower analog ON resistance (<85Ω) and faster switch time (tON <250ns) compared to the DG201A and DG202. Charge injection has been reduced, simplifying sample and hold applications.

The improvements in the DG441 series are made possible by using a high voltage silicon-gate process. An epitaxial layer prevents the latch-up associated with older CMOS technologies. The 44V maximum voltage range permits controlling 40VP-P signals. Power supplies may be single ended from +5V to +34V, symmetrical supplies from ±5V to ±22V or asymmetrical supplies limited to a maximum differential voltage of 44V with a V+ max of 34V or a V- max of -25V.

The four switches are bilateral, equally matched for AC or bidirectional signals. The ON resistance variation with analog signals is quite low over a ±5V analog input range. The switches in the DG441 and DG442 are identical, differing only in the polarity of the selection logic.

Key Features
  • ON Resistance (Max) 85Ω
  • Low Power Consumption (PD) <1.6mW
  • Fast Switching Action
    • tON (Max) 250ns
    • tOFF (Max, DG441) 120ns
  • Low Charge Injection
  • Upgrade from DG201A, DG202
  • TTL, CMOS Compatible
  • Single or Split Supply Operation
  • Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
  • Audio Switching
  • Battery Operated Systems
  • Data Acquisition
  • Hi-Rel Systems
  • Sample and Hold Circuits
  • Communication Systems
  • Automatic Test Equipment
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN557: Recommended Test Procedures for Analog SwitchesPDF13 Nov 2014137 KB
AN535: Design Considerations for a Data Acquisition System (DAS)PDF13 Nov 2014851 KB
AN520: CMOS Analog Multiplexers and Switches; Specifications and Applications ConsiderationsPDF13 Nov 2014120 KB
AN1034: Analog Switch and Multiplexer ActionsPDF13 Nov 2014166 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
DG441DJ16 Ld PDIP1.016N/ANA
DG441DJZ16 Ld PDIP1.016N/ANARoHS
DG441DVZ16 Ld TSSOP0.054161260RoHS
DG441DVZ-T16 Ld TSSOP T+R0.054161260RoHS
DG441DY16 Ld SOIC0.1416240
DG441DY-T16 Ld SOIC T+R0.1416240
DG441DYZ16 Ld SOIC0.14162260RoHS
DG441DYZ-T16 Ld SOIC T+R0.14162260RoHS
DG441DYZA16 Ld SOIC0.14162260RoHS
DG441DYZA-T16 Ld SOIC T+R0.14162260RoHS
16 Ld PDIP HI-508
16 Ld TSSOP T+R ISL84523
16 Ld SOIC T+R ISL84523
DG442
AN557: Recommended Test Procedures for Analog Switches 13 Nov 2014
AN535: Design Considerations for a Data Acquisition System (DAS) 13 Nov 2014
AN520: CMOS Analog Multiplexers and Switches; Specifications and Applications Considerations 13 Nov 2014
AN1034: Analog Switch and Multiplexer Actions 13 Nov 2014