Overview
The XTR105UA/2K5 is a monolithic 4-20 mA, 2-wire current transmitter produced by Texas Instruments. This device is designed to provide complete current excitation for platinum RTD temperature sensors, bridges, instrumentation amplifiers, and current output circuitry on a single integrated circuit. It is particularly useful for applications requiring precise temperature control and durable analog output.
The XTR105UA/2K5 features low unadjusted error, making it suitable for use without adjustment in many applications. It supports 2 or 3 wire RTD operation and has a wide supply range of 7.5 V to 36 V, ensuring versatility in various industrial and automation environments.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Vs (min) | 7.5 | V | |
| Vs (max) | 36 | V | |
| Offset voltage drift (±) (max) | 0.0000015 | V/°C | |
| Offset voltage (±) (max) | 0.000025 | V | |
| Operating temperature range | -40 | 85 | °C |
| Package | SOIC-14 | ||
| Output current range | 4 | 20 | mA |
| Reference current output | 800µA (each channel) |
Key Features
- Low Unadjusted Error: Ensures high accuracy without the need for adjustments in many applications.
- 2 or 3 Wire RTD Operation: Supports both 2 and 3 wire RTD configurations for flexibility.
- Wide Supply Range: Operates with supply voltages from 7.5 V to 36 V.
- Precision Current Sources: Two matched 800µA current sources for driving RTDs and zero-setting resistors.
- Linearization and Nonlinearity Correction: Provides a 2nd-order correction to the RTD, significantly improving linearity.
- High PSR and CMR: High power supply rejection ratio (PSR) and common-mode rejection ratio (CMR) for robust performance.
- Rapid Data Transfer and Synchronized Clocking: Enables fast data transfer and precise timing.
- Advanced Power Management: Optimizes power consumption for efficient operation.
- Customizable Logic Gates: Allows customization of logic gates for specific application requirements.
Applications
- Industrial Process Control: Suitable for use in industrial automation and process control systems.
- Factory Automation: Used in factory automation systems for precise control and monitoring).
- SCADA Remote Data Acquisition: Ideal for remote data acquisition in SCADA systems).
- Temperature and Pressure Transducers: Compatible with temperature and pressure transducers, including Pt100 sensors).
- Medical Devices and Automotive Electronics: Used in medical devices and automotive electronics where precise temperature control is crucial).
Q & A
- What is the XTR105UA/2K5 used for?
The XTR105UA/2K5 is a 4-20 mA, 2-wire current transmitter used for precise temperature control and durable analog output in various applications, including industrial process control, factory automation, and sensor interfaces.
- What is the operating temperature range of the XTR105UA/2K5?
The operating temperature range of the XTR105UA/2K5 is from -40°C to 85°C.
- What is the supply voltage range for the XTR105UA/2K5?
The supply voltage range for the XTR105UA/2K5 is from 7.5 V to 36 V.
- What type of package does the XTR105UA/2K5 come in?
The XTR105UA/2K5 comes in a SOIC-14 package, suitable for surface-mount technology.
- Does the XTR105UA/2K5 support 2 or 3 wire RTD operation?
Yes, the XTR105UA/2K5 supports both 2 and 3 wire RTD operation.
- What are the precision current sources in the XTR105UA/2K5?
The XTR105UA/2K5 has two matched 800µA precision current sources.
- What is the output current range of the XTR105UA/2K5?
The output current range of the XTR105UA/2K5 is from 4 mA to 20 mA.
- Is the XTR105UA/2K5 RoHS compliant?
Yes, the XTR105UA/2K5 is RoHS compliant.
- What are some common applications of the XTR105UA/2K5?
The XTR105UA/2K5 is commonly used in industrial process control, factory automation, SCADA remote data acquisition, and temperature and pressure transducers.
- Does the XTR105UA/2K5 have advanced power management features?
Yes, the XTR105UA/2K5 includes advanced power management features to optimize power consumption.
