Texas Instruments TMUX111x SPST 4-Channel Precision Switches
Texas Instruments TMUX111x SPST 4-Channel Precision Switches are precision complementary metal-oxide semiconductor (CMOS) devices with four independently selectable 1:1, single-pole, single-throw (SPST) switches. A wide operating supply of 1.08V to 5.5V allows for use in a broad array of applications, from medical equipment to industrial systems. The device supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins ranging from GND to VDD.
The switches of the TMUX1111 are turned on with Logic 0 on the appropriate logic control inputs, while Logic 1 is required to turn on switches in the TMUX1112. The four channels of the TMUX1113 are split with two switches supporting Logic 0, while the other two switches support Logic 1. The TMUX1113 exhibits break-before-make switching, which allows the device to be used in cross-point switching applications.
The Texas Instruments TMUX111x devices are part of the precision switches and multiplexers family. These devices have very low on and off leakage currents and low charge injection, allowing them to be used in high-precision measurement applications. The low supply current of 8nA and small package options enable use in portable applications.
Features
- 1.08V to 5.5V wide supply range
- 3pA low leakage current
- -1.5pC low charge injection
- 2Ω low on-resistance
- -40°C to +125°C operating temperature
- 1.8V Logic compatible
- Fail-safe logic
- Rail-to-rail operation
- Bidirectional signal path
- Break-before-make switching
- 2000V ESD protection HBM
Applications
- Sample-and-hold circuits
- Feedback gain switching
- Signal isolation
- Field transmitters
- Programmable logic controllers (PLC)
- Factory automation and control
- Ultrasound scanners
- Patient monitoring & diagnostics
- Electrocardiogram (ECG)
- Data acquisition systems (DAQ)
- ATE test equipment
- Battery test equipment
- Instrumentation: lab, analytical, portable
- Smart meters: Water and Gas
- Optical networking
- Optical test equipment
Functional Block Diagrams
