The XTR108 is a "smart", programmable, 4-20mA, two-wire transmitter designed for temperature and bridge sensors. Zero, span, and linearization errors in the analog signal path can be calibrated via a standard digital serial interface, eliminating manual trimming. Non-volatile ex-ternal EEPROM stores calibration settings.

The all-analog signal path contains an input multiplexer, autozeroed programmable-gain instrumentation amplifier, dual programmable current sources, linearization circuit, voltage reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. Programmable level shifting compensates for sensor DC offsets. Selectable up- and down-scale output indicates out-of-range and burn-out per NAMUR NE43. Automatic reset is initiated when supply is lost.

• COMPLETE TRANSMITTER +RTD LINEARIZATION
• TWO-WIRE, 4-20mA OUTPUT
• VOLTAGE OUTPUT (0.5V to 4.5V)
• ELIMINATES POTENTIOMETERS AND TRIMMING
• DIGITALLY CALIBRATED
• 5V SUB-REGULATOR OUTPUT
• SERIAL SPI? BUS INTERFACE
• SSOP-24 PACKAGE
• APPLICATIONS
  • REMOTE RTD TRANSMITTERS
  • PRESSURE BRIDGE TRANSMITTERS
  • STRAIN GAGE TRANSMITTERS
  • SCADA REMOTE DATA ACQUISITION
  • WEIGHING SYSTEMS
  • INDUSTRIAL PROCESS CONTROL

SPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.

• Vs (Min) (V)
• 4.5
• Vs (Max) (V)
• 5.5
• Offset voltage drift (+/-) (Max) (uV/degrees celsius)
• 0.1
• Offset voltage (+/-) (Max) (uV)
• 50
• Product type
• 2-wire RTD conditioner
• Rating
• Catalog

XTR108的完整型号有：XTR108EA、XTR108EA/2K5，以下是这些产品的关键参数及官网采购报价：

XTR108EA，工作温度：-40 to 85，封装：SSOP (DBQ)-24，包装数量MPQ：50个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网XTR108EA的批量USD价格：3.714（1000+）

XTR108EA/2K5，工作温度：-40 to 85，封装：SSOP (DBQ)-24，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网XTR108EA/2K5的批量USD价格：3.095（1000+）

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XTR108EVM-USB — XTR108 评估模块 USB 版本

Getting started with the XTR108 is made easy with this Evaluation Module. This kit provides the capability of calibrating the XTR108 system with high accuracy and interfacing with multiple types of RTDs or a built-in RTD Emulator circuit.

XTR108EVM-USB Source Code

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TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能，允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

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TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能，但不支持完整版 TINA 所提供的某些其他功能。

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