The XTR111 is a precision voltage-to-current converter designed for the standard 0mA to 20mA or 4mA to 20mA analog signals, and sources up to 32mA. The ratio between input voltage and output current is set by a single resistor, RSET. The circuit can also be modified for voltage-output operation.
An external P-MOSFET transistor provides high output resistance and a broad-compliance voltage range that extends from 2V less than the supply voltage, VVSP, to voltages far less than ground.
The adjustable 3V to 15V subregulator output provides the supply voltage for additional circuitry.
The XTR111 is available in 10-pin HVSSOP and VSON surface-mount packages.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | XTR111 Precision Voltage-to-Current Converter and Transmitter datasheet (Rev. D) | PDF | HTML | 18 Oct 2024 |
| Application brief | How to Select Amplifiers for Pressure Transmitter Applications (Rev. B) | PDF | HTML | 14 Feb 2023 | |
| Functional safety information | XTR111 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 03 Jan 2023 | |
| EVM User's guide | XTR111 Evaluation Module User's Guide (Rev. C) | 17 Apr 2013 | ||
| Analog Design Journal | 4Q 2012 Issue Analog Applications Journal | 25 Sep 2012 | ||
| Analog Design Journal | Harnessing wasted energy in 4- to 20-mA current-loop systems | 25 Sep 2012 | ||
| EVM User's guide | XTR111 Evaluation Module User's Guide (Rev. B) | 13 May 2009 |
For additional terms or required resources, click any title below to view the detail page where available.
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The XTR111-2EVM is used for the basic functional evaluation of the XTR111.The XTR111-2EVM is initiallyconfigured to a basic setup for 0 mA to 20 mA operation with a 0-V to 5-Vinput. Note that although the accuracy of the gain setting resistor, RSET, used in the EVM is 0.1%, the XTR111 device has (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
| VSON (DRC) | 10 | Ultra Librarian |
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