MAX4649:45 Ohm SPDT Analog Switch in SOT23-8

High-Voltage, SPDT Analog Switch in Tiny SOT

The MAX4649 is a dual-supply, single-pole/double-throw (SPDT) analog switch. On-resistance is 45Ω max and flat (7Ω max) over the specified signal range. The MAX4649 can handle rail-to-rail analog signals, and conducts analog or digital signals equally well in either direction. This switch operates from a single +9V to +36V supply, or from ±4.5V to ±20V dual supplies. The primary application areas are in the switching and routing of signals in telecommunications and test equipment. The MAX4649 features a switch transition time of 130ns max at +25°C, and a guaranteed break-before-make switching time of 5ns. Off-leakage current is only 2nA max at +25°C. The MAX4649 is available in a tiny 8-pin SOT23 package.

Key Features
  • Low On-Resistance 45Ω max ±15V Supplies
  • 5Ω max RON Match Between Channels
  • Guaranteed RON Flatness Over Specified Signal Range (7Ω max)
  • VL Logic Supply Not Required
  • Rail-to-Rail Signal Handling
  • +9V to +36V Single Supply Operation
  • ±4.5V to ±20V Dual Supply Operation
  • Low Crosstalk: -92dB at 1MHz
  • High Off-Isolation: -92dB at 1MHz
  • TTL/CMOS-Compatible Control Inputs
MAX4649: Pin Configuration
MAX4649: Pin Configuration
Applications/Uses
  • Bridges
  • High-Speed Access (Telecom)
  • Modems
  • Network Hubs, Switches, Routers
  • Routers/Switches
  • Telecom Switches
  • X-Ray and Ultrasound Diagnostics
DataSheet
titleDownload file
MAX4649 Data SheetMAX4649.pdf
Parametrics
Part NumberFunctionsConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxminmaxSee Notes
MAX4649SwitchSPDT19364.5204541301302176SOT/8$1.65 @1k
Quality and Environmental Data
Related Products
  • MAX4659:High-Current, 25Ω, SPDT, CMOS Analog Switches
  • DG419:Improved, SPST/SPDT Analog Switches
  • MAX319:Precision, SPST, CMOS Analog Switches
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4649EKAActiveSOT,;8 pin;9 mm²-40°C to +85°CNo
MAX4649EKA+ActiveSOT,;8 pin;9 mm²-40°C to +85°CLead Free
MAX4649EKA+TActiveSOT,;8 pin;9 mm²-40°C to +85°CLead Free
MAX4649EKA+TG0NActiveSOT,;8 pin;9 mm²-40°C to +85°CLead Free
MAX4649EKA-TActiveSOT,;8 pin;9 mm²-40°C to +85°CNo
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