EmbeddedRelated.com
    Parts    TMUX1104DGSR
TMUX1104DGSR

TITMUX1104DGSR

Texas Instruments
1 Circuit IC Switch 4:1 4Ohm 10-VSSOP
Active11,494 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The TMUX1104DGSR is a high-performance, single-channel 4:1 precision complementary metal-oxide semiconductor (CMOS) multiplexer. It operates with a wide supply range from 1.08V to 5.5V and features an extremely low leakage current of 5pA and charge injection of 1.5pC, making it ideal for high-precision measurement applications. The device includes fail-safe logic and supports bidirectional rail-to-rail signal switching across a 155MHz bandwidth.

Why Choose This Part

This multiplexer offers a 4-Ohm maximum on-resistance and excellent -65dB crosstalk at 1MHz, ensuring high signal fidelity. Its 1.8V logic compatibility and fail-safe logic features allow for seamless interfacing with modern low-voltage microcontrollers without risk of back-powering the supply rails.

Applications

Data Acquisition Systems
Used to multiplex multiple analog sensor signals into a single ADC input with minimal signal distortion due to low on-resistance and low leakage.
Battery Powered Equipment
The ultra-low supply current of 0.005uA extends battery life in portable instrumentation and handheld devices.
Medical Instrumentation
Suitable for patient monitoring and diagnostic equipment where high signal integrity and low charge injection are critical.
Remote Radio Units
Utilized in communications infrastructure for signal routing where low crosstalk and wide bandwidth are required.

Key Specifications

Crosstalk -65dB ~ -45dB @ 1MHz ~ 10MHz
Mounting Type Surface Mount
-3db Bandwidth 155MHz
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Switch Circuit SP4T
Charge Injection 1.5pC
Number of Circuits 1
Operating Temperature -40degC ~ 125degC (TA)
Supplier Device Package 10-VSSOP
On-State Resistance (Max) 4Ohm
Switch Time (Ton, Toff) (Max) 12ns, 5ns (Typ)
Current - Leakage (IS(off)) (Max) 80pA
Multiplexer/Demultiplexer Circuit 4:1
Channel Capacitance (CS(off), CD(off)) 6pF, 28pF
Channel-to-Channel Matching (ΔRon) 130mOhm

Getting Started

To evaluate this part, use the TMUX1104EVM evaluation module which provides a hardware platform to test switching performance and signal integrity. Ensure that decoupling capacitors are placed close to the VDD pin and follow standard PCB layout practices for high-bandwidth analog signals to minimize parasitic capacitance.

Also Consider

MAX4734EUB+ Maxim Integrated / Analog Devices - A low-voltage 4:1 mux with low on-resistance suitable for 3V and 5V logic systems.