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TMP421 采用 SOT23-8 封装的 +/-1degC 远程和本地温度传感器

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
TMP421 特性
TMP421 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
TMP421AIDCNR ACTIVE -40 to 125 0.55 | 1ku SOT-23 (DCN) | 8 3000 | LARGE T&R  
TMP421AIDCNRG4 ACTIVE -40 to 125 0.55 | 1ku SOT-23 (DCN) | 8 3000 | LARGE T&R  
TMP421AIDCNT ACTIVE -40 to 125 0.65 | 1ku SOT-23 (DCN) | 8 250 | SMALL T&R  
TMP421AIDCNTG4 ACTIVE -40 to 125 0.65 | 1ku SOT-23 (DCN) | 8 250 | SMALL T&R  
TMP421 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
TMP421AIDCNR Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP421AIDCNR TMP421AIDCNR
TMP421AIDCNRG4 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP421AIDCNRG4 TMP421AIDCNRG4
TMP421AIDCNT Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP421AIDCNT TMP421AIDCNT
TMP421AIDCNTG4 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR TMP421AIDCNTG4 TMP421AIDCNTG4
TMP421 应用技术支持与电子电路设计开发资源下载
  1. TMP421 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 TMP421 with the TMP421 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)
TMP421 工具与软件
培训内容 型号 软件/工具类型
TMP421EVM 评估模块 TMP421EVM 开发电路板/EVM