Overview
The TMUX1072RUTR, produced by Texas Instruments, is a high-speed, 2-channel, 2:1 analog multiplexer with integrated overvoltage detection and protection. This device is bidirectional and can be used as either a 2:1 or 1:2 switch, supporting signals beyond the supply voltage (VCC) up to 5.5 V. It features powered-off protection, where the I/O pins remain in a high-Z state when VCC is 0 V, ensuring system integrity during power sequencing. The TMUX1072RUTR also includes 6-V overvoltage and overtemperature detection with a fault indicator pin, and provides 18-V overvoltage protection on the common pins to safeguard system components from fault conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 2.3 | - | 5.5 | V |
| ON-State Resistance (RON) | - | 6 | 18 | Ω |
| Bandwidth (BW) | - | 1.2 | - | GHz |
| Channel-to-Channel ON-State Resistance Match (ΔRON) | 0.07 | - | 0.5 | Ω |
| Overvoltage Protection (OVP) on Common Pins | - | - | 18 | V |
| Operating Free-Air Temperature | -40 | - | 125 | °C |
| Junction Temperature | -40 | - | 125 | °C |
| Package Type | - | - | UQFN (12-pin), VSSOP (10-pin) | - |
Key Features
- Powered-off protection: I/O pins in high-Z state when VCC = 0 V
- 6-V Overvoltage and overtemperature detection with fault indicator pin
- 18-V Overvoltage protection on common pins
- Supports signals beyond VCC up to 5.5 V
- Low RON of 6 Ω and high bandwidth of 1.2 GHz
- Low power disable mode and 1.8-V compatible logic inputs
- ESD protection exceeds JESD22 – 2000-V Human Body Model (HBM)
- Small 2.00 mm x 1.70 mm QFN package available
Applications
- Data acquisition (DAQ)
- Field instrumentation
- Video surveillance
- HVAC systems
- Rear camera systems
The TMUX1072RUTR is particularly useful in scenarios where processors or microcontrollers have limited I/Os, allowing the expansion of signal paths and protection against overvoltage conditions.
Q & A
- What is the supply voltage range of the TMUX1072RUTR? The supply voltage range is from 2.3 V to 5.5 V.
- What is the typical ON-state resistance (RON) of the TMUX1072RUTR? The typical RON is 6 Ω.
- What is the bandwidth of the TMUX1072RUTR? The bandwidth is typically 1.2 GHz.
- Does the TMUX1072RUTR have overvoltage protection? Yes, it provides 18-V overvoltage protection on the common pins.
- What is the operating temperature range of the TMUX1072RUTR? The operating free-air temperature range is from -40°C to 125°C.
- What package types are available for the TMUX1072RUTR? It is available in UQFN (12-pin) and VSSOP (10-pin) packages.
- How does the TMUX1072RUTR protect against overtemperature conditions? It detects overtemperature events and signals through the fault indicator pin (FLT).
- Is the TMUX1072RUTR ESD protected? Yes, it exceeds JESD22 – 2000-V Human Body Model (HBM) for ESD protection.
- What is the purpose of the fault indicator pin (FLT) in the TMUX1072RUTR? The FLT pin signals overvoltage or overtemperature events by pulling the pin low.
- Can the TMUX1072RUTR be used to expand the number of I/Os in a system? Yes, it can be used to switch between multiple signal paths, effectively expanding the limited number of I/Os in processors or microcontrollers.
