TMUX8108, TMUX8109
SCDS435A – SEPTEMBER 2021 – REVISED DECEMBER 2021
TMUX810x 100-V, Flat RON, Single 8:1 and Dual 4:1 Multiplexers
with Latch-Up Immunity and 1.8-V Logic
1 Features
3 Description
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High supply voltage capable:
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.
– 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
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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
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.
Break-before-make switching
Wide operating temperature TA: –40°C to 125°C
Industry-standard TSSOP and
smaller WQFN packages
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.
2 Applications
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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
Device Information
PART NUMBER(1)
PACKAGE
TSSOP (16)
WQFN (16)(2)
BODY SIZE (NOM)
5.00 mm × 4.40 mm
4.00 mm × 4.00 mm
TMUX8108
TMUX8109
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(2) Preview package.
VDD
VSS
VDD
VSS
SW
SW
SW
S1
S2
S1A
DA
DB
SW
SW
S4A
S1B
D
SW
SW
S4B
S8
A0
A1
A2
A0
A1
EN
Logic Decoder
EN
Logic Decoder
TMUX8108
TMUX8109
TMUX8108 and TMUX8109 Block Diagram
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.