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TMUX7308F

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±60-V fault-protected, 8:1, one-channel multiplexers with 1.8-V logic

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Product details

Parameters

Configuration 8:1 Number of channels (#) 1 Power supply voltage - single (V) 12, 16, 20, 36, 44 Ron (Typ) (Ohms) 250 ON-state leakage current (Max) (µA) 0.025 Bandwidth (MHz) 80 Operating temperature range (C) -40 to 125 Features 1.8-V compatible control inputs, Break-before-make, Fail-safe logic, Overvoltage protection, Powered-off protection Input/output continuous current (Max) (mA) 10 Rating Catalog CON (Typ) (pF) 40 Supply current (Typ) (uA) 250 open-in-new Find other Analog switches & muxes

Features

  • Wide supply range:
    • Dual supply: ±5 V to ±22 V
    • Single supply: 8 V to 44 V
  • Integrated fault protection:
    • Overvoltage protection, source to supplies or to Ddrain: ±85 V
    • Overvoltage protection: ±60 V
    • Powered-off protection: ±60 V
    • Non-fault channels continue to operate with low leakage currents
    • Known state without digital inputs present
    • Output clamped to the supply in overvoltage condition
  • Latch-up immunity by device construction
  • Break-before-make switching action
  • Logic levels: 1.8 V to VDD
  • Industry standard TSSOP and smaller WQFN packages

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Description

The TMUX7308F and TMUX7309F are modern complementary metal-oxide semiconductor (CMOS) analog multiplexers in 8:1 (single ended) and 4:1 (differential) configurations. The devices work well with dual supplies (±5 V to ±22 V), a single supply (8 V to 44 V), or asymmetric supplies. All control inputs support logic levels from 1.8 V to 44 V, enabling system level flexibility for controlling the multiplexer.

When no power supplies are present, the switch channels remain in the OFF state regardless of switch input conditions and logic control status. Under normal operation conditions, if the analog input signal level on any Sx pin exceeds the supply voltage (VDD or VSS) by a threshold voltage (VT), the channel turns OFF and the Sx pin becomes high impedance. When the fault channel is selected, the drain pin (D or Dx) is pulled to the supply (VDD or VSS) that was exceeded. The device blocks fault voltage up to +60 V or –60 V relative to ground in both powered and powered-off conditions.

The low capacitance, low charge injection, and integrated fault protection enable the TMUX7308F and TMUX7309F devices to be used in front end data acquisition applications where high performance and high robustness are both critical. The devices are available in standard TSSOP package and smaller WQFN package (ideal if PCB space is limited).

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Technical documentation

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Type Title Date
* Data sheet TMUX730xF +60 V or –60 V Tolerant, Fault-protected, Single-Ended 8:1, Dual 4:1 M datasheet Feb. 05, 2021
Application note Using Latch Up Immune Multiplexers to Help Improve System Reliability Oct. 09, 2020

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The EVM-LEADED1 board allows for quick testing and bread boarding of TI's common leaded packages.  The board has footprints to convert TI's D, DBQ, DCT,DCU, DDF, DGS, DGV, and PW surface mount packages to 100mil DIP headers.     

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The EVM-LEADLESS1 board allows for quick testing and bread boarding of TI's common leadless packages.  The board has footprints to convert TI's DRC, DTP, DQE, RBW, RGY, RSE, RSV, RSW RTE, RTJ, RUK , RUC, RUG, RUM,RUT and YZP surface mount packages to 100mil DIP headers.
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  • Allows suface mount packages to be plugged into 100mil spaced bread board 
  • Supports TI's 16 most popular leadless packages with a single panel

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