MAX4742:0.8Ω, Low-Voltage, Single-Supply Dual SPST Analog Switches

The MAX4741/MAX4742/MAX4743 are low on-resistance, low-voltage, dual single-pole/single-throw (SPST) analog switches that operate from a single +1.6V to +3.6V supply. These devices have fast switching speeds (tON = 24ns, tOFF = 16ns max), handle rail-to-rail analog signals, and consume less than 1µW of quiescent power. The MAX4743 has break-before-make switching. When powered from a +3V supply, the MAX4741/MAX4742/MAX4743 feature low 0.8Ω (max) on-resistance (RON), with 0.08Ω (max) RON matching and 0.18Ω RON flatness. The digital logic input is 1.8V CMOS compatible when using a single +3V supply. The MAX4741 has two normally open (NO) switches, the MAX4742 has two normally closed (NC) switches, and the MAX4743 has one NO switch and one NC switch. The MAX4741 is available in 8-pin µDFN (2mm x 2mm), 8-pin SOT23, and 8-pin µMAX® packages. The MAX4742/MAX4743 are available in 8-pin SOT23 and 8-pin µMAX packages.

Key Features
  • Low RON:
    • 0.8Ω max (+3V Supply)
    • 2.5Ω max (+1.8V Supply)
  • 0.18Ω max RON Flatness (+3V Supply)
  • +1.6V to +3.6V Single-Supply Operation
  • Available in SOT23 and µMAX Packages
  • High-Current Handling Capacity (150mA continuous)
  • 1.8V CMOS Logic Compatible (+3V Supply)
  • Fast Switching: tON = 24ns, tOFF = 16ns
MAX4741, MAX4742, MAX4743: Pin Configuration
MAX4741, MAX4742, MAX4743: Pin Configuration
Applications/Uses
  • Audio and Video Signal Routing
  • Battery Powered Systems
  • Cellular Phones
  • Communications Circuits
  • Hard Drives
  • Low-Voltage Data-Acquisition Systems
  • Modems
  • PCMCIA Cards
  • Power Routing
DataSheet
titleDownload file
MAX4741-MAX4743 Data SheetMAX4741-MAX4743.pdf
Parametrics
Part NumberConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
RFLAT(ON)
(Ω)
Bandwidth
(MHz)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX4741SPST2Open1.63.603.63.60.80.050.18100124164432µDFN/8
µMAX/8
SOT/8
$1.44 @1k
MAX4742DPSTClosedµDFN/8
µMAX/8
SOT/8
$1.44 @1k
MAX4743SPSTOpen/ClosedµDFN/8
µMAX/8
SOT/8
$1.49 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4742EKA+ActiveSOT,;8 pin;9 mm²-40°C to +85°CLead Free
MAX4742EKA+TActiveSOT,;8 pin;9 mm²-40°C to +85°CLead Free
MAX4742EKA-TNo Longer AvailableMAX4742EKA+TSOT,;8 pin;9 mm²-40°C to +85°CNo
MAX4742ELA+TNo Longer AvailableµDFN,;8 pin;4.2 mm²-40°C to +85°CLead Free
MAX4742EUANo Longer AvailableMAX4742EUA+µMAX,;8 pin;15.6 mm²-40°C to +85°CNo
MAX4742EUA+ActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
MAX4742EUA+TActiveµMAX,;8 pin;15.6 mm²-40°C to +85°CLead Free
MAX4742EUA-TNo Longer AvailableMAX4742EUA+TµMAX,;8 pin;15.6 mm²-40°C to +85°CNo
MAX4741-MAX4743.pdf MAX4743
MAX4742.pdf MAX4742
MAX4741-MAX4743.pdf MAX4743