MAX4554, MAX4555, MAX4556 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.

Key Features

Applications/Uses

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)
t_ON and t_OFF = 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

Key Specifications: Switches and Multiplexers (Mid Voltage)

Part Number

Configuration

Number of Channels

Normally (Open/Closed)

V_SUPPLY, Single (min) (V)

V_SUPPLY, Single (max) (V)

V_SUPPLY, Dual (min) (±V)

V_SUPPLY, Dual (max) (±V)

R_ON (max) (Ω)

I_{L (OFF)} (max) (nA)

t_ON (max) (nS)

t_OFF (max) (nS)

Q_INJECTION (pC)

C_ON (pF)

C_OFF (pF)

Features

V_ISO, Off-Isolation (dB)

ΔR_ON (max) (Ω)

R_FLAT(ON) (max) (Ω)

Package

RoHS Available

Price^*

MAX4554

SPDT

Open

4.5

0.25

300

250

130

•	Force/Sense

DICE SALES/0
PDIP/16
SOIC/16

Yes

$2.42 @ 1k

MAX4555

SPST

Closed

225

185

100

4.5

$2.42 @ 1k

MAX4556

SPDT

225

185

100

$2.66 @ 1k

See All Switches and Multiplexers (Mid Voltage) (289)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.