MAX4643

High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches


Please check latest availability status for a specific part variant.

Description

The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1.8V to +5.5V. The MAX4641/MAX4642/MAX4643 provide low 4Ω on-resistance (RON), 0.6Ω RON matching between channels, and 1Ω RON flatness over the entire analog signal range. These devices offer fast switching times of less than 20ns while consuming less than 0.01µW of quiescent power.

The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage currents over the entire temperature range. The MAX4641/MAX4642/MAX4643 are available in small 8-pin µMAX® and 8-pin QFN packages.
MAX4641, MAX4642, MAX4643: Pin Configuration MAX4641, MAX4642, MAX4643: Pin Configuration Enlarge+

Key Features

  • +1.8V to +5.5V Single-Supply Operation
  • Rail-to-Rail Analog Signal Range
  • Guaranteed RON
    • 4Ω max (+5V supply)
    • 8Ω max (+3V supply)
  • +1.8V Operation
    • RON 30Ω typ Over Temperature
    • tON 18ns typ, tOFF 12ns typ
  • Guaranteed RON Flatness: 1Ω (+5V supply)
  • Guaranteed RON Match Between Channels
    • 0.6Ω (+5V supply)
  • Low Leakage (<0.35nA) Over Entire Temperature Range
  • Excellent AC Characteristics
    • Low Crosstalk: -97dB at 1MHz
    • High Off-Isolation: -80dB at 1MHz
    • 0.018% Total Harmonic Distortion
  • Low Power Consumption: < 0.01µW

Applications/Uses

  • Audio/Video Signal Routing
  • Battery-Powered Applications
  • Communication Systems
  • Low-Voltage Data Acquisition
  • Sample-and-Hold Circuits
Part NumberConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxmaxmaxSee Notes
MAX4641 SPST2Open1.85.505.55.540.850.251582187
UMAX/8
$1.14 @1k
MAX4642 Closed
UMAX/8
$1.14 @1k
MAX4643 Open/Closed
TDFN/8
UMAX/8
$1.19 @1k
See All Switches and Multiplexers (Low Voltage) (163)
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.

Quality and Environmental Data

Request Reliability Report for: MAX4643 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX4643EUA+
  • MAX4643EUA+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.

    Quality Management System >
    Environmental Management System >

     
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