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Texas Instruments TMUX621x 4-Channel Multiplexers

Texas Instruments TMUX621x 4-Channel Multiplexers are complementary metal-oxide semiconductor (CMOS) switches with four independently selectable 1:1, single-pole, single-throw (SPST) switch channels. The devices work with a single supply (4.5V to 36V), dual supplies (±4.5V to ±18V), or asymmetric supplies (such as VDD = 12V, VSS = –5V). The TMUX621x supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins ranging from VSS to VDD.

The switches of the Texas Instruments TMUX621x are controlled with appropriate logic control inputs on the SELx pins. The TMUX621x are part of the precision switches and multiplexers family of devices and have very low on and off leakage currents allowing them to be used in high precision measurement applications.

Features

  • ±4.5V to ±18V dual supply range
  • 4.5V to 36V single supply range
  • 2Ω low on-resistance
  • 370mA (maximum) high current support
  • –40°C to +125°C operating temperature
  • 1.8V logic compatible
  • Fail-safe logic
  • Rail-to-rail operation
  • Bidirectional operation

Applications

  • Sample-and-hold circuits
  • Feedback gain switching
  • Signal isolation
  • Field transmitters
  • Programmable Logic Controllers (PLC)
  • Factory automation and control
  • Ultrasound scanners
  • Patient monitoring and diagnostics
  • Electrocardiogram (ECG)
  • Data Acquisition Systems (DAQ)
  • Semiconductor test equipment
  • LCD test
  • Instrumentation (lab, analytical, portable)
  • Ultrasonic smart meters (water and gas)
  • Optical networking
  • Optical test equipment

Functional Block Diagram

Block Diagram - Texas Instruments TMUX621x 4-Channel Multiplexers
Published: 2021-03-22 | Updated: 2022-03-11