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MAX4721, MAX4722, MAX4723
4.5Ω Dual SPST Analog Switches in UCSP


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 304kB)
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The MAX4721/MAX4722/MAX4723 low-voltage, low on-resistance (RON), dual single-pole/single throw (SPST) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications.

The MAX4721/MAX4722/MAX4723 feature 4.5Ω RON (max) with 1.2Ω flatness and 0.3Ω matching between channels. These new switches feature guaranteed operation from +1.8V to +5.5V and are fully specified at 3V and 5V. These switches offer break-before-make switching (1ns) with tON <80ns and tOFF <40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.

These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 1.52mm x 1.52mm area and has a 3 x 3 bump array with a bump pitch of 0.5mm. These switches are also available in an 8-pin µMAX® package.

Key Features   Applications/Uses
  • USB 1.1 Signal Switching
  • <2ns Differential Skew
  • -3dB Bandwidth: >300MHz
  • Low 15pF On-Channel Capacitance
  • Low RON (max) Switches
    • 4.5Ω (max) (+3V Supply)
    • 3Ω (max) (+5V Supply)
  • 0.3Ω (max) RON Match (+3V Supply)
  • 1.2Ω (max) RON Flatness (+3V Supply)
  • <0.5nA Leakage Current at TA = +25°C
  • High Off-Isolation: -55dB (10MHz)
  • Low Crosstalk: -80dB (10MHz)
  • Low Distortion: 0.03%
  • +1.8V CMOS-Logic Compatible
  • Single-Supply Operation from +1.8V to +5.5V
  • Rail-to-Rail Signal Handling

 
  • Audio/Video Signal Routing
  • Battery-Operated Equipment
  • Communications Circuits
  • Low-Voltage Data-Acquisition Systems
  • Sample-and-Hold Circuits

    Diagram
    MAX4721, MAX4722, MAX4723: Pin Configuration
    Pin Configuration

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    Document Ref.: 19-2632; Rev 0; 2002-11-24
    This page last modified: 2009-10-13


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