Force-Sense Switches

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The MAX4554/MAX4555/MAX4556 are CMOS analog ICs configured as force-sense switches for Kelvin sensing in automated test equipment (ATE). Each part contains high-current, low-resistance switches for forcing current, and higher resistance switches for sensing a voltage or switching guard signals. The MAX4554 contains two force switches, two sense switches, and two guard switches configured as two triple-pole/single-throw (3PST) normally open (NO) switches. The MAX4555 contains four independent single-pole/single-throw (SPST) normally closed (NC) switches, two force switches, and two sense switches. The MAX4556 contains three independent single-pole/double-throw (SPDT) switches, of which one is a force switch and two are sense switches.

These devices operate from a single supply of +9V to +40V or dual supplies of ±4.5V to ±20V. On-resistance (6Ω max) is matched between switches to 1Ω max. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 0.25nA at +25°C and 2.5nA at +85°C. The MAX4554 is also fully specified for +20V and -10V operation.

All digital inputs have +0.8V and +2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility.
MAX4554: Pin Configuration MAX4554: Pin Configuration Enlarge+

Key Features

  • 6Ω Force Signal Paths (±15V Supplies)
  • 1Ω Force Signal Matching (±15V Supplies)
  • 60Ω Sense-Guard Signal Paths (±15V Supplies)
  • 8Ω Sense-Guard Signal Matching (±15V Supplies)
  • Rail-to-Rail Signal Handling
  • Break-Before-Make Switching (MAX4556)
  • tON and tOFF = 275ns (±15V Supplies)
  • Low 1µA Power Consumption
  • >2kV ESD Protection per Method 3015.7
  • TTL/CMOS-Compatible Inputs


  • ADSL with Loopback
  • Automated Test Equipment (ATE)
  • Automatic Calibration Circuits
  • Calibrators
  • Precision Power Supplies
Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
VSUPPLY (Single)
minmaxminmaxmaxmaxmaxmaxSee Notes
MAX4554 SwitchSPDT3Open9404.520600.253002508013022
SOIC (N)/16
$4.10 @1k
MAX4555 SPST6Closed30225185100
SOIC (N)/16
$4.10 @1k
MAX4556 SPDT2-60225185100
SOIC (N)/16
$10.03 @1k
See All Switches and Multiplexers (Mid and High Voltage) (299)
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.

Technical Documents

App Note 5299 Selecting the Right CMOS Analog Switch

Quality and Environmental Data

Request Reliability Report for: MAX4554 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX4554CSE+
  • MAX4554CSE+T
  • MAX4554ESE+
  • MAX4554ESE+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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