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Beyond-the-Rails Octal SPST Switches

Switch ±5.5V Common-Mode Signal from a Single Supply Rail as Low as 1.6V

Product Details

Key Features

Parametric specs for Switches and Multiplexers (Low Voltage)
Protocol I2C
Configuration SPST
# Channels 8
Normal Position Open
VSUPPLY (Single) (V) (min) 1.6
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) -5.5
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 11
RON (Ω) (max) 1
RFLAT(ON) (Ω) (typ) 0.005
Package/Pins TQFN-CU/28
Budgetary
Price (See Notes)
2
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Simplified Block Diagram

Technical Docs

Data Sheet Beyond-the-Rails Octal SPST Switches Jul 24, 2014

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Parameters

Parametric specs for Switches and Multiplexers (Low Voltage)
Protocol I2C
Configuration SPST
# Channels 8
Normal Position Open
VSUPPLY (Single) (V) (min) 1.6
VSUPPLY (Single) (V) (max) 5.5
VSIGNAL (V) (min) -5.5
VSIGNAL (V) (max) 5.5
Dynamic Range (max) (V) (max) 11
RON (Ω) (max) 1
RFLAT(ON) (Ω) (typ) 0.005
Package/Pins TQFN-CU/28
Budgetary
Price (See Notes)
2

Key Features

  • 8 x SPST Switch
  • Serial Control
    • I2C with Two Address-Select Pins
    • SPI with DOUT for Daisy Chain
    • Independent Control of Each Switch
  • Beyond-the-Rails
    • ±5.5V Signal Range Independent of Supply Voltage
  • Low Distortion Switching
    • Total Harmonic Distortion + Noise 0.001% (typ)
    • RON Flatness 0.5mΩ (typ) Across Complete Signal Range
  • Wide Supply Range
    • +1.6V to +5.5V Single Supply
  • 0.425Ω RON (typ)
  • Compact Package
    • 4mm x 4mm, 28-Pin TQFN
  • ±15kV HBM ESD Protection on all A_ and B_ Pins

Applications/Uses

  • Audio Switching/Multiplexing
  • Port Protection
  • Power Management

Description

The MAX14662 is a serially controlled 8 x SPST switch for general purpose signal switching applications. The number of switches makes the device useful in a wide variety of applications while serial control maximizes flexibility with minimal pins. This part features Beyond-the-Rails capability so that ±5.5V signals can be passed with any single supply between +1.6V and +5.5V.

The serial control is selectable between I2C and SPI. Both modes provide individual control of each independent switch so that any combination of switches can be applied. I2C mode provides two address select pins allowing for addressing up to four devices on a single bus. The SPI mode includes a DOUT pin that can be used to chain multiple devices together with a single select signal.

The MAX14662 is available in a 28-pin (4mm x 4mm) TQFN package and is specified over the -40°C to +85°C extended temperature range. The A_ and B_ pins provide ±15kV Human Body Model (HBM) ESD protection.

Simplified Block Diagram

MAX14662: Typical Application Circuit MAX14662: Typical Application Circuit Zoom icon

Technical Docs

Data Sheet Beyond-the-Rails Octal SPST Switches Jul 24, 2014

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 .