TMUX1511 1:1 (SPST) 4-Channel CMOS Switch

By Texas Instruments 73

TMUX1511 1:1 (SPST) 4-Channel CMOS Switch

Texas Instruments' TMUX1511 is a complementary metal-oxide-semiconductor (CMOS) switch that offers 1:1 SPST switch configuration with four independently-controlled channels. These switches offer a wide operating supply of 1.5 V to 5.5 V allowing for use in servers, communication equipment, and industrial applications. The TMUX1511 supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins and can pass signals above the supply up to VDD x 2, with a maximum input/output voltage of 5.5 V.

The TMUX1511 switches offer powered-off protection up to 3.6 V on the signal path to provide isolation when the supply voltage is removed (VDD = 0 V). Without this protection feature, the switches can back-power the supply rail through an internal ESD diode and cause potential damage to the system.

Fail-safe logic circuitry allows voltages on the logic control pins to be applied before the supply pin, protecting the device from potential damage. The logic control inputs have 1.8 V logic-compatible thresholds ensuring TTL and CMOS logic compatibility when operating in the valid supply voltage range.

  • Wide supply range: 1.5 V to 5.5 V
  • Low on-capacitance: 3.3 pF
  • Low on-resistance: 2 Ω
  • High bandwidth: 3 GHz
  • Operating temperature range: -40°C to +125°C
  • Logic compatible: 1.8 V
  • Support input voltage beyond the supply
  • Integrated pull-down resistor on the logic pins
  • Bidirectional signal path
  • Failsafe logic
  • Powered-off protection up to 3.6 V:
    • Pinout compatible with SN74CBTLV3126
    • Pinout compatible (logic variant) with SN74CBTLV3125
  • Servers
  • Wired networking
  • Wireless infrastructure
  • Datacenter switches and routers
  • PCs/notebooks
  • Building automation
  • ePOS
  • Motor drives
  • Appliances
  • Battery-powered equipment
  • JTAG isolation
  • SPI isolation

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