Overview
The XTR116UA, produced by Texas Instruments, is a precision current output converter designed for transmitting 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 is specifically tailored for applications requiring high accuracy and reliability in current transmission.
It features an on-chip voltage regulator and a precision voltage reference, making it a fundamental building block for smart sensors. The device operates over an extended industrial temperature range of –40°C to +85°C, ensuring robust performance in various environmental conditions.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | SOIC (D), 8 pins |
| Operating Temperature Range | –40°C to +85°C |
| Quiescent Current | 200 µA |
| Voltage Regulator | 5 V for external circuits |
| Voltage Reference (V REF) | 4.096 V for XTR116 |
| Span Error | 0.05% |
| Nonlinearity Error | 0.003% |
| Loop Supply Range | 7.5 V to 36 V |
Key Features
- Low quiescent current: 200 µA
- 5-V regulator for powering external circuits
- Precision on-chip V REF (4.096 V for XTR116) for sensor excitation or offsetting
- Low span error: 0.05%
- Low nonlinearity error: 0.003%
- Wide loop supply range: 7.5 V to 36 V
- SO-8 package for compact design
- Current return pin (I RET) for accurate control of output current
Applications
The XTR116UA is primarily used in applications that require the transmission of analog signals over current loops, such as in industrial automation, process control, and smart sensor systems. It is particularly useful in environments where high accuracy and reliability are crucial.
- Industrial automation
- Process control systems
- Smart sensor applications
- Current loop transmission in harsh environments
Q & A
- What is the primary function of the XTR116UA?
The XTR116UA 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?
The operating temperature range is –40°C to +85°C.
- What is the quiescent current of the XTR116UA?
The quiescent current is 200 µA.
- What voltage does the on-chip voltage regulator provide?
The on-chip voltage regulator provides 5 V for external circuits.
- What is the precision voltage reference (V REF) for the XTR116UA?
The precision voltage reference (V REF) for the XTR116UA is 4.096 V.
- What are the key error specifications of the XTR116UA?
The XTR116UA has a span error of 0.05% and a nonlinearity error of 0.003%.
- What is the loop supply range for the XTR116UA?
The loop supply range is 7.5 V to 36 V.
- What package type is the XTR116UA available in?
The XTR116UA is available in an SO-8 package.
- What is the purpose of the current return pin (I RET)?
The current return pin (I RET) senses any current used in external circuitry to provide accurate control of the output current.
- In what types of applications is the XTR116UA commonly used?
The XTR116UA is commonly used in industrial automation, process control systems, smart sensor applications, and current loop transmission in harsh environments.
