Overview
The TMUX7208PWR is a precision 8:1, single-channel multiplexer manufactured by Texas Instruments. This device is part of the TMUX720x family, which features low on-resistance and charge injection, making it suitable for high-precision measurement applications. The TMUX7208PWR operates with a wide range of supply voltages, including single supply (4.5V to 44V) and dual supplies (±4.5V to ±22V), and supports bidirectional analog and digital signals. It is designed to be latch-up immune, preventing undesirable high current events and ensuring reliability in harsh environments.
Key Specifications
| Parameter | Typical Value | Min Value | Max Value | Unit |
|---|---|---|---|---|
| On-Resistance (RON) | 4 | 3.5 | 7.9 | Ω |
| Charge Injection | 3 | - | - | pC |
| Maximum Continuous Current | 400 (WQFN), 300 (TSSOP) | - | - | mA |
| Operating Temperature | -40°C to +125°C | -40°C | +125°C | °C |
| Transition Time | 140-195 | 115 | 248 | ns |
| Turn-on Time (tON(EN)) | 140-195 | 115 | 248 | ns |
| Turn-off Time (tOFF(EN)) | 148-270 | 115 | 290 | ns |
| Break-Before-Make Time | 50 | - | - | ns |
| -3dB Bandwidth | 30 | - | - | MHz |
Key Features
- Latch-up immune to prevent undesirable high current events
- Dual supply range: ±4.5V to ±22V and single supply range: 4.5V to 44V
- Low on-resistance: 4Ω
- Low charge injection: 3pC
- High current support: up to 400mA (WQFN) and 300mA (TSSOP)
- 1.8V logic compatible inputs with integrated pull-down resistors
- Fail-safe logic and rail-to-rail operation
- Bidirectional signal path and break-before-make switching
Applications
- Factory automation and control
- Programmable logic controllers (PLC)
- Analog input modules
- Semiconductor test equipment
- Battery test equipment
- Ultrasound scanners
- Patient monitoring and diagnostics
- Optical networking and optical test equipment
- Wired networking
- Data acquisition systems (DAQ)
Q & A
- What is the TMUX7208PWR?
The TMUX7208PWR is a precision 8:1, single-channel multiplexer manufactured by Texas Instruments.
- What are the operating voltage ranges for the TMUX7208PWR?
The device operates with a single supply range of 4.5V to 44V and a dual supply range of ±4.5V to ±22V.
- What is the on-resistance of the TMUX7208PWR?
The on-resistance is typically 4Ω.
- What is the maximum continuous current the TMUX7208PWR can handle?
The maximum continuous current is up to 400mA for the WQFN package and 300mA for the TSSOP package.
- What is the operating temperature range of the TMUX7208PWR?
The operating temperature range is -40°C to +125°C.
- Is the TMUX7208PWR latch-up immune?
Yes, the TMUX7208PWR is latch-up immune, preventing undesirable high current events.
- What are the typical transition times for the TMUX7208PWR?
The transition times are typically between 140-195 ns.
- What is the break-before-make time for the TMUX7208PWR?
The break-before-make time is typically 50 ns.
- What are some common applications of the TMUX7208PWR?
Common applications include factory automation, PLCs, analog input modules, semiconductor test equipment, and data acquisition systems.
- Does the TMUX7208PWR support bidirectional signals?
Yes, the TMUX7208PWR supports bidirectional analog and digital signals.
- What is the -3dB bandwidth of the TMUX7208PWR?
The -3dB bandwidth is typically 30 MHz.
