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4.5 Ohm Quad SPST Analog Switches in UCSP

Product Details

Key Features

Parametric specs for Switches and Multiplexers (Low Voltage)
Protocol USB Full-Speed
USB Low-Speed
Configuration SPST
# Channels 4
Normal Position Open
VSUPPLY (Single) (V) (min) 1.8
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) 0
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 5.5
RON (Ω) (max) 4.5
RFLAT(ON) (Ω) (typ) 0.6
Package/Pins TQFN/16
TSSOP/14
UCSP (B)/16
Budgetary
Price (See Notes)
1.86
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Simplified Block Diagram

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Parameters

Parametric specs for Switches and Multiplexers (Low Voltage)
Protocol USB Full-Speed
USB Low-Speed
Configuration SPST
# Channels 4
Normal Position Open
VSUPPLY (Single) (V) (min) 1.8
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) 0
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 5.5
RON (Ω) (max) 4.5
RFLAT(ON) (Ω) (typ) 0.6
Package/Pins TQFN/16
TSSOP/14
UCSP (B)/16
Budgetary
Price (See Notes)
1.86

Key Features

  • USB 1.1 Signal Switching
  • 2ns (max) Differential Skew
  • -3dB Bandwidth: >300MHz
  • Low 20pF On-Channel Capacitance
  • Low RON
    • 4.5Ω (max) (+3V Supply)
    • 3Ω (max) (+5V Supply)
  • 0.4Ω (max) RON Match (+3V Supply)
  • 1.2Ω (max) RON Flatness (+3V Supply)
  • <0.5nA Leakage Current at +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

Applications/Uses

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

Description

The MAX4737/MAX4738/MAX4739 low-voltage, low on-resistance (RON), quad 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 MAX4737/MAX4738/MAX4739 feature 4.5Ω RON (max) with 1.2Ω flatness and 0.4Ω 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 2mm x 2mm area and has a 4 x 4 bump array with a bump pitch of 0.5mm. These switches are also available in a 14-pin TSSOP package.

Simplified Block Diagram

MAX4737, MAX4738, MAX4739: Functional Diagram MAX4737, MAX4738, MAX4739: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .