Features for the TMUX2889
- Supply range: 1.8V to 5.5V
- Beyond the supply signal range:-5.5V to 5.5V
- High current support: >1A (maximum)
- Ultra-low on-resistance: 0.2Ω
- Low on-resistance flatness: 1mΩ
- Low THD+N: 0.001% (-100dB)
- –40°C to +125°C operating temperature
- Powered off protection
- Over temperature protection
- 1.8V logic compatible
- Fail-safe logic
- Break-before-make switching
Description for the TMUX2889
The TMUX2889 is a complementary metal-oxide semiconductor (CMOS) multiplexer with two independently selectable 2:1, single-pole, double-throw (SPDT) switch channels. This device works with a single supply (1.6V to 5.5V), but can pass bidirectional analog and digital signals beyond the supply from -5.5V to 5.5V.
The TMUX2889 also features powered off protection up to ±5.5V, which isolates the switch even when there is no supply voltage present (VDD = 0V). Without this protection feature, any voltage on the switch can back-power the supply rail through an internal ESD diode and cause potential damage to the rest of the system.
With 0.001% THD+N and 1mΩ RON-flatness, the TMUX2889 is designed for passing precision analog and audio signals without adding distortion.