Overview
The TMUX1309DYYR, produced by Texas Instruments, is a general-purpose complementary metal-oxide semiconductor (CMOS) multiplexer. This device is part of the TMUX1309A-Q1 series, which includes 4:1, 2-channel (differential) multiplexers. The TMUX1309A-Q1 supports bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins, ranging from GND to VDD. It is designed to operate in a wide range of applications, particularly in automotive and industrial environments, due to its robust features and compatibility with various logic standards.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VDD Supply Voltage | - | -0.5 | - | 6 | V |
| VSEL or VEN Logic Control Input Pin Voltage | - | -0.5 | - | 6 | V |
| VS or VD Source or Drain Voltage | - | -0.5 | - | VDD+1.0 | V |
| RON On-state Switch Resistance (at VDD = 5V) | VS = 0V to VDD, ISD = 0.5mA | 75 | 195 | 220 | Ω |
| ΔRON On-state Switch Resistance Matching (at VDD = 5V) | VS = VDD / 2, ISD = 0.5mA | 10 | 38 | 45 | Ω |
| Propagation Delay (at VDD = 5V, CL = 50pF) | Sx to D, D to Sx | 4 | 9 | 10 | ns |
Key Features
- Injection Current Control: Eliminates the need for external diode and resistor networks, protecting the switch and keeping input signals within the supply voltage.
- Back-Powering Protection: No internal diode path to VDD, preventing damage to components connected to the supply pin or unintended power to the supply rail.
- Wide Supply Range: Operates from 1.62 V to 5.5 V.
- Low Capacitance: Reduces the need for large current limiting resistors.
- Bidirectional Signal Path: Supports analog and digital signals on source and drain pins.
- Rail-to-Rail Operation: Signals can range from GND to VDD.
- 1.8 V Logic Compatible: Ensures compatibility with both TTL and CMOS logic.
- Fail-Safe Logic: Protects the device by allowing control pin voltages to be applied before the supply pin.
- Break-Before-Make Switching: Ensures that the old path is disconnected before the new path is connected.
- Functional Safety-Capable: Documentation available to aid in functional safety system design.
Applications
- Analog and Digital Multiplexing and Demultiplexing: Suitable for various signal routing applications.
- Diagnostics and Monitoring: Used in systems requiring real-time monitoring and diagnostics.
- Data Center Switches: Employed in data center infrastructure for efficient signal management.
- Remote Radio Units (RRU): Used in telecommunications for signal routing.
- Rack Servers: Utilized in server systems for efficient signal management.
- Electricity Meters: Applied in smart metering systems for accurate measurement.
- Appliances: Used in various consumer and industrial appliances.
- Air Conditioner Units: Employed in HVAC control systems.
- Off-highway Vehicles Control Systems: Used in automotive and industrial vehicle control systems.
Q & A
- What is the TMUX1309DYYR?
The TMUX1309DYYR is a 4:1, 2-channel (differential) CMOS multiplexer produced by Texas Instruments.
- What is the supply voltage range of the TMUX1309DYYR?
The device operates from 1.62 V to 5.5 V.
- What is the significance of the internal injection current control feature?
This feature eliminates the need for external diode and resistor networks, protecting the switch and keeping input signals within the supply voltage.
- Does the TMUX1309DYYR support bidirectional signals?
Yes, it supports bidirectional analog and digital signals on the source and drain pins.
- What is the logic compatibility of the TMUX1309DYYR?
The device is compatible with both TTL and CMOS logic due to its 1.8 V logic compatible thresholds.
- How does the Fail-Safe Logic feature work?
The Fail-Safe Logic allows control pin voltages to be applied before the supply pin, protecting the device from potential damage.
- What is the typical propagation delay of the TMUX1309DYYR at VDD = 5V?
The typical propagation delay is 9 ns with a load capacitance of 50 pF.
- Is the TMUX1309DYYR suitable for automotive applications?
Yes, it is designed to be used in various automotive applications, including body control modules, battery management systems, and HVAC control modules.
- What is the package type and body size of the TMUX1309DYYR?
The device is available in a TSSOP (16) package with a body size of 5mm × 4.4mm.
- Does the TMUX1309DYYR have any specific thermal considerations?
Yes, it requires proper thermal management, and a decoupling capacitor between VDD and GND is recommended for reliable operation.
