The GX122 temperature sensor IC introduced by National Technology has become an ideal alternative for TI TMP122 because of its excellent accuracy and wide temperature working ability.Compared with TMP122,GX122 has achieved higher accuracy in key temperature measurement scenarios,and is especially suitable for applications such as communication equipment,computers,consumer electronics,environmental monitoring,industrial instruments and instrument detection.
1.performance of national high-precision temperature sensor IC GX122
GX122 adopts SPI-compatible digital interface,supports 9-12-bit programmable resolution(including sign bit),and the conversion speed is less than 240ms,with quick response.The temperature sensor IC is in the range of-25℃to+85℃,and the typical accuracy can reach 0.3℃.In the full temperature range from-40℃to+125℃,the typical accuracy remains 0.5℃.The temperature sensor IC can run stably at the temperature as high as 150℃,meeting the harsh environmental requirements of industrial grade.
The normal working current of temperature sensor IC is only 50μA,the average power consumption is as low as 15μA,and the working voltage range is 2.7V to 5.5V,which is compatible with common low-voltage systems.The temperature sensor chip provides two packaging methods,SOT23-6 and MSOP8,in which SOT23-6 can complete the peripheral circuit with only one pull-up resistor,which greatly simplifies the board layout space.In addition,the temperature sensor IC has built-in 4kV electrostatic protection(ESD),which further improves the reliability of the product during assembly and use.
2.Characteristics of national high-precision temperature sensor IC GX122
①The accuracy of temperature sensor IC is 0.5℃
②The conversion speed of temperature sensor IC is less than 240 ms.
③Electrostatic protection:4KV;Average power consumption is 15uA.Package
④mode:MSOP8/SOT23-6"
⑤It is more accurate than TI TMP122.
⑥Used for industrial temperature measurement.
3.Advantages of national high-precision temperature sensor IC GX122
GX122 supports programmable high/low temperature preset values and has a power-off mode,which allows users to dynamically manage power consumption and temperature measurement rhythm according to actual needs.Whether doing temperature monitoring,high temperature protection or precision temperature measurement,this temperature sensor IC can provide flexible solutions.Compared with TI TMP122,GX122 has higher accuracy in typical temperature range,stable supply and controllable cost,and is a good choice for domestic substitution.
Keywords:
temperature sensor IC
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