ADG738:  CMOS, Low Voltage, Single 8 to 1 Multiplexer, Serially Controlled Matrix Switch

The ADG738 is a CMOS analog matrix switch/Multiplexer with a serially-controlled 3-wire interface. The ADG738 is an 8-channel matrix switch. On resistance is closely matched between switches and very ...More

ADG738:  CMOS, Low Voltage, Single 8 to 1 Multiplexer, Serially Controlled Matrix Switch

Product Description

The ADG738 is a CMOS analog matrix switch/Multiplexer with a serially-controlled 3-wire interface. The ADG738 is an 8-channel matrix switch. On resistance is closely matched between switches and very flat over the full signal range.

On power-up, the internal shift register contains all zeros and all switches are in the OFF state. Each switch conducts equally well in both directions when on, making the part suitable for both multiplexing and demulti-plexing applications. As each switch is turned on or off by a separate bit, these parts can also be configured as a type of switch array, where any, all, or none of the eight switches may be closed at any time. The ADG738 is available in a small TSSOP package.

Applications

  • Data Acquisition Systems
  • Communication Systems
  • Relay Replacement
  • Audio and Video Switching

Features

  • Three Wire SPI™/QSPI™/MICROWIRE™ ­ Compatible Interface
  • 2-Wire Serial Interface
  • 2.7 V to 5.5 V Single Supply
  • 2.5 O On Resistance
  • 0.75 O On-Resistance Flatness
  • 100 pA Leakage Currents
  • Single 8-to-1 Matrix Switch
  • Power-On Reset
  • Small 16-Lead TSSOP Package

Diagrams

  • Enlarge
  • Symbols and Footprints
ADG738 Diagram
Functional Block Diagram for ADG738

Specifications

Sw/Mx Function x # (8:1 Matrix) x 1
Interface Type 3-Wire Serial
Available Packages SOP
Max Analog Signal Range 0 to Vdd
Ron (Ohms) 2.5Ohms
Ron Match (Ohms) 0.4Ohms
Cs (OFF) 13pF
Cs, Cd (ON) 96pF
Off Isolation (-dB) 75dB
Bandwidth 65MHz

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