Analog Linearized 3-Wire PT100 RTD to 2-Wire 4-20mA Current Loop Transmitter Reference Design
Description
This design features a single-chip solution to linearize and transmit a 3-wire PT100 RTD over the industry standard 2-wire 4-20mA current loop. The design was configured for a -200 °C to 800 °C temperature range: but other temperature ranges can be achieved by adjusting the component values as discussed in the Theory of Operation section of the reference design guide.
Features
- Input: 3-Wire PT100 RTDTemperature Range: -200 °C to 800 °COutput: 2-Wire 4-20mA Current LoopIncludes analog RTD sensor linearization for >40x linearity improvement over end-point fitReference design includes theory: calculated error analysis: component selection: PCB layout: and measured results.
Applications
- Servo drive position sensor
Product Categories
- Sensors
| Application Area | End Equipment |
|---|---|
| Servo drive position sensor | https://www.ti.com/solution/servo-drive-position-sensor#referencedesigns |
| Download |
|---|
| Download the bill of materials for TIPD161 | Download |
Design File
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Download the design file for TIPD161Test Data
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Download the test file for TIPD161| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIPD161 BOM | 19 Oct 2015 | 193 | ||
| TIPD161 Schematic | 19 Oct 2015 | 192 |