Texas Instruments TMUX28x CMOS Multiplexers
Texas Instruments TMUX28x CMOS Multiplexers are available in 2 configurations, including 1:1 2-channel, 2:1 1-channel, with a high 1.1A (maximum) current. These multiplexers feature bidirectional powered-off protection up to ±5.5V, which isolates the switch even when no supply voltage is present (VDD = 0V). The TMUX28x CMOS multiplexers work with a 1.8V to 5.5V single supply, but can pass bidirectional analog and digital signals beyond the supply from -5.5V to 5.5V. These devices with 0.001% THD+N and flat 1mΩ RON are an excellent choice for passing precision analog and audio signals without distortion. The TMUX28x multiplexers are ideal for land mobile radios, defense radios, audio input, output switching, ultrasonic gas flow transmitters, analog input modules, and industrial module detection.
Features
- 1.8V to 5.5V supply voltage range
- -5.5V to 5.5V beyond the supply signal range
- 1.1A (maximum) high current support
- 0.16Ω ultra-low on-resistance
- 1.0mΩ low on-resistance flatness
- 0.001% (-100dB) low THD+N
- -40°C to 125°C operating temperature range
- Power-off protection
- 1.8V logic compatible at 5V VDD
- 1.2V logic compatible at 1.8V VDD
- Integrated pull-down resistor on logic pins
- Fail-safe logic
- Break-before-make switching
Applications
- Land mobile radios
- Defense radios
- Audio input or output switching
- Ultrasonic gas flow transmitters
- Analog input modules
- Industrial module detection
Block Diagram
