1 Features
1• Rail to Rail Operation
• Bidirectional Signal Path
• Low On-Resistance: 5 Ω
• Wide Supply Range: 1.08 V to 5.5 V
• -40°C to +125°C Operating Temperature
• 1.8 V Logic Compatible
• Fail-Safe Logic
• Low Supply Current: 10 nA
• Transition Time: 14 ns
• Break-Before-Make Switching
• ESD Protection HBM: 2000 V
• Industry-Standard TSSOP and QFN Packages

2 Applications
• Analog and Digital Multiplexing / Demultiplexing
• HVAC: Heating, Ventilation, and Air Conditioning
• Smoke Detectors
• Video Surveillance
• Electronic Point of Sale
• Battery-Powered Equipment
• Appliances
• Consumer Audio

3 Description
The TMUX1208 and TMUX1209 are general purpose
complementary metal-oxide semiconductor (CMOS)
multiplexers (MUX). The TMUX1208 offers 8:1 singleended
channels, while the TMUX1209 offers
differential 4:1 or dual 4:1 single-ended channels.
Wide operating supply of 1.08 V to 5.5 V allows for
use in a broad array of applications from personal
electronics to building automation applications. The
device supports bidirectional analog and digital
signals on the source (Sx) and drain (D) pins ranging
from GND to VDD.
All logic inputs have 1.8 V logic compatible
thresholds, ensuring both TTL and CMOS logic
compatibility when operating in the valid supply
voltage range. Fail-Safe Logic circuitry allows
voltages on the control pins to be applied before the
supply pin, protecting the device from potential
damage.