Product details

Configuration 4:1 Number of channels (#) 2 Power supply voltage - single (V) 12, 16, 20, 36, 44 Protocols Analog Ron (Typ) (Ohms) 250 CON (Typ) (pF) 20 ON-state leakage current (Max) (µA) 0.025 Bandwidth (MHz) 120 Operating temperature range (C) -40 to 125 Features 1.8-V compatible control inputs, Break-before-make, Fail-safe logic, Overvoltage protection Input/output continuous current (Max) (mA) 10 Rating Catalog Supply current (Typ) (uA) 250
Configuration 4:1 Number of channels (#) 2 Power supply voltage - single (V) 12, 16, 20, 36, 44 Protocols Analog Ron (Typ) (Ohms) 250 CON (Typ) (pF) 20 ON-state leakage current (Max) (µA) 0.025 Bandwidth (MHz) 120 Operating temperature range (C) -40 to 125 Features 1.8-V compatible control inputs, Break-before-make, Fail-safe logic, Overvoltage protection Input/output continuous current (Max) (mA) 10 Rating Catalog Supply current (Typ) (uA) 250
WQFN (RRP) 16 16 mm² 4 x 4
  • 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 source to drain: ±85 V
    • Overvoltage protection: ±60 V
    • Powered-off protection: ±60 V
    • Non-fault channels continue to operate
    • Known state without logic inputs present
    • Output clamped to the supply in overvoltage condition
  • Latch-up immune
  • 1.8-V Logic capable
  • Fail-safe logic: up to 44 V independent of supply
  • Integrated pull-down resistor on logic pins
  • Break-before-make switching
  • Industry standard TSSOP and smaller WQFN packages
  • 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 source to drain: ±85 V
    • Overvoltage protection: ±60 V
    • Powered-off protection: ±60 V
    • Non-fault channels continue to operate
    • Known state without logic inputs present
    • Output clamped to the supply in overvoltage condition
  • Latch-up immune
  • 1.8-V Logic capable
  • Fail-safe logic: up to 44 V independent of supply
  • Integrated pull-down resistor on logic pins
  • Break-before-make switching
  • Industry standard TSSOP and smaller WQFN packages

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 (such as VDD = 12 V, VSS = –5 V). The overvoltage protection is available in powered and powered-off conditions, making the TMUX7308F and TMUX7309F devices suitable for applications where power supply sequencing cannot be precisely controlled.

The device blocks fault voltage up to +60 V or –60 V relative to ground in both powered and powered-off conditions. 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 low capacitance, low charge injection, and integrated fault protection enables 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 a standard TSSOP package and smaller WQFN package (ideal if PCB space is limited).

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 (such as VDD = 12 V, VSS = –5 V). The overvoltage protection is available in powered and powered-off conditions, making the TMUX7308F and TMUX7309F devices suitable for applications where power supply sequencing cannot be precisely controlled.

The device blocks fault voltage up to +60 V or –60 V relative to ground in both powered and powered-off conditions. 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 low capacitance, low charge injection, and integrated fault protection enables 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 a standard TSSOP package and smaller WQFN package (ideal if PCB space is limited).

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Type Title Date
* Data sheet TMUX730xF ±60-V Fault-Protected, 8:1 and Dual 4:1 Multiplexers with Latch-Up Immunity and 1.8-V Logic datasheet (Rev. B) 21 Dec 2021
Application note Protection Against Overvoltage Events, Miswiring, and Common Mode Voltages 07 Oct 2021

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