Overview
The XTR116UA/2K5, produced by Texas Instruments, is a precision current output converter designed to transmit analog 4-mA-to-20-mA signals over an industry standard current loop. This device is part of the XTR11x series, which includes the XTR115 and XTR116 models. The XTR116UA/2K5 is engineered to provide accurate current scaling and output current limit functions, making it a fundamental building block for smart sensors and industrial process control systems. It operates over an extended industrial temperature range of –40°C to +85°C and features a wide loop supply range of 7.5 V to 36 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (V+) | 7.5 to 36 | V |
| Operating Temperature (TA) | –40 to 85 | °C |
| Junction Temperature (TJ) | 165 | °C |
| Storage Temperature (Tstg) | –55 to 125 | °C |
| Lead Temperature (soldering, 10 s) | 300 | °C |
| Output Current Range | 4 to 20 | mA |
| Span Error | ±0.05% | |
| Nonlinearity Error | ±0.003% | |
| Quiescent Current | 200 μA | |
| VREF for Sensor Excitation | 4.096 V | |
| Package Type | SOIC-8 |
Key Features
- Low quiescent current: 200 μA
- 5-V regulator for external circuits
- Precision on-chip VREF (4.096 V) for sensor excitation or offsetting
- Low span error: 0.05% and low nonlinearity error: 0.003%
- Wide loop supply range: 7.5 V to 36 V
- SO-8 package
- Current return pin (IRET) for accurate control of output current
Applications
- 2-wire, 4-20-mA current loop transmitters
- Smart transmitters
- Industrial process control systems
- Test systems
- Compatible with HART modem
- Current amplifiers and voltage-to-current amplifiers
Q & A
- What is the primary function of the XTR116UA/2K5?
The XTR116UA/2K5 is a precision current output converter designed to transmit analog 4-mA-to-20-mA signals over an industry standard current loop.
- What is the operating temperature range of the XTR116UA/2K5?
The device operates over an extended industrial temperature range of –40°C to +85°C.
- What is the power supply voltage range for the XTR116UA/2K5?
The power supply voltage range is 7.5 V to 36 V.
- What is the quiescent current of the XTR116UA/2K5?
The quiescent current is 200 μA.
- What is the precision on-chip VREF value for the XTR116UA/2K5?
The precision on-chip VREF value is 4.096 V.
- What are the key error specifications for the XTR116UA/2K5?
The device has a low span error of 0.05% and a low nonlinearity error of 0.003%.
- What package type does the XTR116UA/2K5 come in?
The XTR116UA/2K5 comes in an SO-8 package.
- What are some common applications for the XTR116UA/2K5?
Common applications include 2-wire, 4-20-mA current loop transmitters, smart transmitters, industrial process control systems, test systems, and current amplifiers.
- Is the XTR116UA/2K5 compatible with HART modems?
Yes, the XTR116UA/2K5 is compatible with HART modems.
- Can the XTR116UA/2K5 be used to power external circuitry?
Yes, the on-chip 5-V regulator can be used to power external circuitry.
