1 Features

? High supply voltage capable:

– Dual supply: ±10 V to ±50 V

– Single supply: 10 V to 100 V

– Asymmetric dual supply operation

? Consistent parametrics across supply voltages

? Latch-up immune

? Low crosstalk: –110 dB

? Low input leakage: 40 pA

? Low on resistance flatness: 0.5 Ω

? Removes need for additional logic rail (VL)

? 1.8 V Logic capable

? Fail-safe logic: up to 48 V independent of supply

? Integrated pull-down resistor on logic pins

? Bidirectional signal path

? Break-before-make switching

? Wide operating temperature TA: –40°C to 125°C

? Industry-standard TSSOP and

smaller WQFN packages

2 Applications

? High voltage bidirectional switching

? Analog and digital multiplexing and demultiplexing

? Semiconductor test equipment

? LCD test equipment

? Battery test equipment

? Data acquisition systems (DAQ)

? Digital multi-meter (DMM)

? Factory automation and control

? Programmable logic controllers (PLC)

? Analog input modules

3 Description

The TMUX8108 and TMUX8109 are modern high

voltage capable analog multiplexers in 8:1 (single

ended) and 4:1 (differential) configurations. The

devices work well with dual supplies, a single supply,

or asymmetric supplies up to a maximum supply

voltage of 100 V. The TMUX810x devices provide

consistent analog parametric performance across the

entire supply voltage range. The TMUX8108 and

TMUX8109 support bidirectional analog and digital

signals on the source (Sx) and drain (Dx) pins.

All logic inputs support logic levels of 1.8 V, 3.3 V, 5V

and can be connected as high as 48 V, allowing for

system flexibility with control signal voltage. Fail-safe

logic circuitry allows voltages on the logic pins to be

applied before the supply pin, protecting the device

from potential damage.

The device family provides latch-up immunity,

preventing undesirable high current events between

parasitic structures within the device. A latch-up

condition typically continues until the power supply

rails are turned off and can lead to device failure.

The latch-up immunity feature allows this family of

multiplexers to be used in harsh environments.