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MAX4731, MAX4732, MAX4733
50 Ohm, Dual SPST Analog Switches in UCSP


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Description
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The MAX4731/MAX4732/MAX4733 low-voltage, dual, single-pole/single-throw (SPST) analog switches operate from a single +2V to +11V supply and handle rail-to- rail analog signals. These switches exhibit low leakage current (0.1nA) and consume less than 0.5nW (typ) of quiescent power, making them ideal for battery-powered applications.

When powered from a +3V supply, these switches feature 50Ω (max) on-resistance (RON) with 3.5Ω (max) matching between channels, and 9Ω (max) flatness over the specified signal range.

The MAX4731 has two normally open (NO) switches, the MAX4732 has two normally closed (NC) switches, and the MAX4733 has one NO and one NC switch. The MAX4731/MAX4732/MAX4733 are available in 9-bump chip-scale packages (UCSP™), along with 8-pin TDFN and 8-pin µMAX® packages. The tiny UCSP occupies a 1.52mm x 1.52mm area and significantly reduces the required PC board area.

Key Features   Applications/Uses
  • 1.52mm x 1.52mm UCSP Package
  • Guaranteed On-Resistance (RON)
    • 25Ω (max) at +5V
    • 50Ω (max) at +3V
  • On-Resistance Matching
    • 3Ω (max) at +5V
    • 3.5Ω (max) at +3V
  • Guaranteed < 0.1nA Leakage Current at TA = +25°C
  • Single-Supply Operation from +2.0V to +11V
  • TTL/CMOS-Logic Compatible
  • -108dB Crosstalk (1MHz)
  • -72dB Off-Isolation (1MHz)
  • Low Power Consumption: 0.5nW (typ)
  • Rail-to-Rail Signal Handling

 
  • Audio/Video Signal Routing
  • Battery-Powered Systems
  • Cell Phones
  • Communications Circuits
  • Low-Voltage Data-Acquisition Systems
  • PDAs

    Key Specifications:   Switches and Multiplexers (Mid Voltage)
    Part Number Configuration Number of Channels Normally (Open/Closed) VSUPPLY, Single (min) (V) VSUPPLY, Single (max) (V) RON (max) (Ω) Bandwidth (MHz) IL (OFF) (max) (nA) tON (max) (nS) tOFF (max) (nS) QINJECTION (pC) CON (pF) COFF (pF) Price**
    MAX4731  SPST 2 Open 2 11 50 300 0.1 150 60 7.5 40 20 $0.51 @ 1k
    MAX4732  Closed 7.5 $0.51 @ 1k
    MAX4733  Open/Closed  -  $0.51 @ 1k
    See All Switches and Multiplexers (Mid Voltage) (282)
    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.

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    Document Ref.: 19-2645; Rev 2; 2007-01-16
    This page last modified: 2008-03-12



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