Texas Instruments TMUX6612-Q1 SPST 4-Channel Precision Switch

Texas Instruments TMUX6612-Q1 SPST 4-Channel Precision Switch has four independently selectable 1:1, single-pole, single-throw (SPST) switch channels. The device works with dual supplies (±4.5V to ±20V), a single supply (4.5V to 36V), or asymmetric supplies (such as VDD = 20V, VSS = –10V). The TMUX6612-Q1 supports digital and bidirectional analog signals on the drain (Dx) and source (Sx) pins, ranging from VSS to VDD.

The Texas Instruments TMUX6612-Q1 switch is controlled with appropriate logic control inputs on the SELx pins. The TMUX6612-Q1 features a special architecture that allows for ultra-low charge injection. This architecture helps prevent unwanted coupling from the control input to the device's analog output and reduces AC noise and offset errors.

Features

  • AEC-Q100 qualified for automotive applications with a device temperature grade 1 of -40°C to +125°C ambient operating temperature
  • Functional safety-capable, with documentation available to aid functional safety system design
  • Dual supply range of ±4.5V to ±20V
  • Single supply range of 4.5V to 36V
  • Asymmetric dual supply operation (for example, +20V, -10V)
  • 1.8V logic compatible
  • Precision performance
    • Low on-resistance of 1.1Ω (typ.)
    • Ultra-low on-resistance flatness of 0.005Ω (typ.)
    • High current support of 470mA (max.)
    • Ultra-low charge injection of 6pC (typ.)
  • -40°C to +125°C operating temperature
  • Rail-to-rail operation
  • Bidirectional operation
  • Break-before-make switching

Applications

  • OBDII CAN switching
  • Onboard charging (OBC)
  • Advanced driver assistance systems (ADAS)
  • ADAS domain controller
  • Telematics control unit
  • Body control modules (BCM)
  • Body electronics and lighting
  • Battery management systems
  • HVAC controller module

Functional Block Diagram

Block Diagram - Texas Instruments TMUX6612-Q1 SPST 4-Channel Precision Switch
發佈日期: 2025-06-13 | 更新日期: 2025-06-20