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TMP422 具有 N-Factor 和串联电阻校正的 +/-1℃ 远程/本地温度传感器

The TMP421, TMP422, and TMP423 are remote temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or FPGAs.

Remote accuracy is ±1°C for multiple IC manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.

The TMP421, TMP422, and TMP423 include series resistance cancellation, porgrammable non-ideality factor, wide remote temperature measurment range (up to +150°C), and diode fault detection

TMP421 TMP422 TMP423
Interface I2C, SMBus     I2C, SMBus     I2C, SMBus    
Temp Resolution (Max) (bits) 12     12     12    
Supply Voltage (Min) (V) 2.7     2.7     2.7    
Supply Voltage (Max) (V) 5.5     5.5     5.5    
Iq (Typ) (uA) 400     400     400    
Rating Catalog     Catalog     Catalog    
Remote Channel 1     2     3    
Sensor Type Remote + Local     Remote + Local     Remote + Local    
Remote Sensor Correction n-Factor Correction,Series Resistance Cancellation n-Factor Correction,Series Resistance Cancellation n-Factor Correction,Series Resistance Cancellation
Remote Sensor Accuracy (Max) (+/- C) 1     1     1    
Local Sensor Accuracy (Max) (+/- C) 1.5     1.5     1.5    
Operating Temperature Range (C) -40 to 125     -40 to 125     -40 to 125    
Pin/Package 8SOT-23     8SOT-23     8SOT-23
TMP422 特性
TMP422 芯片订购指南
器件 状态 温度 价格 封装 | 引脚 封装数量 | 封装载体 丝印标记
TMP422AIDCNR ACTIVE -40 to 125 0.55 | 1ku SOT-23 (DCN) | 8 3000 | LARGE T&R  
TMP422AIDCNRG4 ACTIVE -40 to 125 0.55 | 1ku SOT-23 (DCN) | 8 3000 | LARGE T&R  
TMP422AIDCNT ACTIVE -40 to 125 0.65 | 1ku SOT-23 (DCN) | 8 250 | SMALL T&R  
TMP422AIDCNTG4 ACTIVE -40 to 125 0.65 | 1ku SOT-23 (DCN) | 8 250 | SMALL T&R  
TMP422 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
TMP422AIDCNR Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP422AIDCNR TMP422AIDCNR
TMP422AIDCNRG4 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP422AIDCNRG4 TMP422AIDCNRG4
TMP422AIDCNT Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP422AIDCNT TMP422AIDCNT
TMP422AIDCNTG4 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP422AIDCNTG4 TMP422AIDCNTG4
TMP422 应用技术支持与电子电路设计开发资源下载
  1. TMP422 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器温度传感器产品选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 高速数据转换 (PDF 1967 KB)
  5. 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
  6. 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
  7. Using the TMP422 with the TMP422 to Generate 4mA to 20mA Output (PDF 167 KB)
  8. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
  9. PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
  10. 运算放大器的单电源操作 (PDF 2174 KB)
  11. Tuning in Amplifiers (PDF 44 KB)
  12. Op Amp Performance Analysis (PDF 76 KB)
  13. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
  14. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
  15. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
TMP422 工具与软件
培训内容 型号 软件/工具类型
TMP422EVM 评估模块 TMP422EVM 开发电路板/EVM