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TMP03:  温度传感器 - 串行数字输出信号温度检测器

TMP03/TMP04是一款调制的串行数字输出信号的单片温度检测器，其输出信号与温度成比例。TMP03/TMP04内置传感器产生的电压与绝对温度具有精密的比例关系，绝对温度与内部电压基准进行比较后输入至精密数字调制器。串行数字输出的比例（ratiometric）编码格式与电压-频率转换器等大多数串行调制技术中常见的时钟漂移误差无关。在-25°C ～ +100°C温度范围内，其整体精度是±1.5°C (典型值) ，具有卓越的传输线性。TMP04的数字输出是CMOS/TTL兼容的，容易实现与大多数普通微处理器串行输入的接口。TMP03的开集输出具有5 mA灌电流能力。TMP03是利用光电耦合器或隔离变压器进行隔离的系统最佳选择。

TMP03/TMP04工作电源电压范围是4.5 V ～ 7 V。电源电压为+5 V时，消耗电流(未加负载)低于1.3 mA。

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TMP03:  温度传感器 - 串行数字输出信号温度检测器

Product Description

TMP03/TMP04是一款调制的串行数字输出信号的单片温度检测器，其输出信号与温度成比例。TMP03/TMP04内置传感器产生的电压与绝对温度具有精密的比例关系，绝对温度与内部电压基准进行比较后输入至精密数字调制器。串行数字输出的比例（ratiometric）编码格式与电压-频率转换器等大多数串行调制技术中常见的时钟漂移误差无关。在-25°C ～ +100°C温度范围内，其整体精度是±1.5°C (典型值) ，具有卓越的传输线性。TMP04的数字输出是CMOS/TTL兼容的，容易实现与大多数普通微处理器串行输入的接口。TMP03的开集输出具有5 mA灌电流能力。TMP03是利用光电耦合器或隔离变压器进行隔离的系统最佳选择。

TMP03/TMP04工作电源电压范围是4.5 V ～ 7 V。电源电压为+5 V时，消耗电流(未加负载)低于1.3 mA。

TMP03/TMP04工作温度范围：-40°C ～ +100°C，采用低功耗TO-92、SO-8与TSSOP-8 SMT封装。工作温度扩展至+150°C时，精度有所下降。

TMP03/TMP04是功能强大的完全温度测量系统，配备片上数字输出电路。 TMP01的内置温度传感器后面是低功耗可编程温度控制器，在整个额定温度范围内具有卓越的精度和线性度，不需要用户进行校正或校准。

利用一阶∑-Δ调制器，也就是熟知的“电荷平衡”型模数转换器，可以实现传感器输出数字化。这类转换器利用时域过采样技术以及高精度比较器，在小型电路中提供12 bit的有效精度。

∑-Δ调制器主要包括输入采样器、加法网络、积分器、比较器和1位数模转换器（DAC）。与电压-频率转换器类似，这种架构实际上生成一个负反馈环路，其目的是根据输入电压变化来改变比较器输出的占空比，从而使积分器输出最小。比较器对积分器输出进行采样，其采样速率要比输入采样频率高得多，称作过采样。这使得量化噪声在比输入信号宽得多的频段内扩展，改进了整个噪声性能，并提高了精度。

利用电路技术（专利申请待批）对经过调制的比较器输出进行编码，该技术利用脉冲间隔比例格式生成串行数字信号，任何微处理器都可以将这种格式解码为摄氏温度或华氏温度值，并通过单线进行传输或调制。最重要的是，这个编码方法从根本上避免了其他调制技术中常见的主要误差源，因为它独立于时钟。

RESOURCES & TOOLS

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  • 低成本3引脚封装
  • 调制串行数字输出
  • 与温度成正比
  • 在–25°C～+100°C温度范围内，测量精度为±1.5°C（典型值）
  • 5 V电源下, 功耗为6.5 mW（最大值）
  • 工作温度范围：–40°C～+100°C（标称值），
    最高工作温度：150°C
  • 灵活的集电极开路输出
  • 请参考数据手册以了解更多特性
  • Output Type: Digital
  • Sensor Output: PWM
  • Temp Res(°C/LSB): 0.3°C/LSB
  • Supply Voltage Range: +4.5V to +7V
  • Temp Range(s): -40 to +100

功能框图TMP03

类似产品

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Part# Temp Res(°C/LSB) 25°C Temp Error (Deg C) Resolution (Bits) # Chan DAC Outputs Interface Temp Range(s) Supply Voltage Range Product Description Price* (1000-4999) Sensor Output Supply Current
TMP03 0.3 ±3 16 0 --- PWM -40 to +100 +4.5V to +7V Serial PWM-Output Temperature Sensor w/ Open-Collector Output $3.27 PWM 1.3mA
TMP04 0.3 ±3 16 0 --- PWM -40 to +100 +4.5V to +7V Serial PWM-Output Temperature Sensor w/ CMOS/TTL Output $3.27 PWM 1.3mA
AD7814 0.25 n/a 10 0 --- Serial, SPI -55 to +125 +2.7V to +5.5V 10-Bit Digital Temperature Sensor in 6-Lead SOT-23 $1.00 DSP Serial, MICROWIRE (TM), QSPI (TM), SPI (TM) 400µA
AD7414 0.25 n/a 10 0 --- I2C, Serial -40 to +125 +2.7V to +5.5V SMBus/I2C, 10-Bit Digital Temperature Sensor in 6-Pin SOT w/ SMBus Alert and Over-Temperature Pin $1.04 I²C ®, SMBus 900µA
AD7415 0.25 ±2 10 0 --- I2C, Serial -40 to +125 +2.7V to +5.5V SMBus/I2C, 10-Bit Digital Temperature Sensor in 5-Pin SOT $1.04 I²C ®, SMBus 900µA
AD7416 0.25 n/a 10 0 --- I2C, Serial -40 to +125 +2.7V to +5.5V 10-Bit Temperature-to-Digital Converter, -40°C to +125°C, ±2°C Accuracy $1.00 I²C ® 1mA
AD7314 0.25 ±1 10 0 --- Serial, SPI -35 to +85 +2.65V to +5.5V Low Voltage, 10-Bit Digital Temperature Sensor in 8-Lead µSOP $0.66 DSP Serial, MICROWIRE (TM), QSPI (TM), SPI (TM) 300µA
AD7818 0.25 ±1 10 1 --- Serial, SPI -40 to +85 +2.7V to +5.5V 9 µs, 10-Bit ADC w/ On-Chip Temperature Sensor & Over-Temperature Output $2.34 MICROWIRE (TM), QSPI (TM), SPI (TM) 2mA
AD7418 0.25 ±1 10 2 --- I2C, Serial -40 to +125 +2.7V to +5.5V 10-Bit ADC, Programmable Hi-Low Temp Limits w/ Over-Temp Alert, , Auto Pwr Dwn @ EOC $2.34 I²C ® 600µA
ADT7316 0.25 ±0.5 10 3 12-Bit x 4 I2C, I2C/SPI, Serial, SM Bus, SPI -40 to +120 +2.7V to +5.5V SPI/I2C® Compatible,10-Bit Digital Temperature Sensor With Quad Voltage-Output 12-Bit DAC $3.72 I²C ®, QSPI (TM), SMBus, SPI (TM) 3mA
ADT7317 0.25 ±0.5 10 3 10-Bit x 4 I2C, I2C/SPI, SM Bus, SPI -40 to +120 +2.7V to +5.5V SPI/I2C® Compatible,10-Bit Digital Temperature Sensor w/ Quad 10-Bit Voltage Output DAC $3.65 DSP Serial, I²C ®, MICROWIRE (TM), QSPI (TM), SMBus, SPI (TM) 3mA
ADT7318 0.25 +0.5 10 3 8-Bit x 4 I2C, I2C/SPI, Serial, SM Bus, SPI -40 to +120 +2.7V to +5.5V SPI/I2C® Compatible,10-Bit Digital Temperature Sensor & Quad Voltage Output 8-Bit DAC $3.56 DSP Serial, I²C ®, MICROWIRE (TM), QSPI (TM), SMBus, SPI (TM) 3mA
AD7817 0.25 ±1 10 4 --- Serial, SPI -40 to +85 +2.7V to +5.5V 4-Channel, 9 µs, 10-Bit ADC with On-Chip Temperature Sensor & Over-Temperature Flag $3.29 MICROWIRE (TM), QSPI (TM), SPI (TM) 2mA
AD7417 0.25 ±1 10 5 --- I2C, Serial -40 to +125 +2.7V to +5.5V 4-Channel, 10-Bit ADC w/ on-Chip Temperature Sensor, Programmable Setpoints, and Overtemp Flag Out $2.99 I²C ® 600µA
ADT7516 0.25 n/a 10 7 12-Bit x 4 I2C/SPI, Serial, SPI -40 to +120 +2.7V to +5.5V SPI/I2C Compatible Temperature Sensor w/10-Bit-4-Ch ADC & Quad 12-Bit Voltage DAC Control Outputs $3.72 I²C ®, SPI (TM) 3mA
ADT7517 0.25 n/a 10 7 10-Bit x 4 I2C/SPI, Serial, SPI -40 to +120 +2.7V to +5.5V SPI/I2C Compatible Temperature Sensor w/10-Bit-4-Ch ADC & Quad 10-Bit Voltage DAC Control Outputs $3.65 DSP Serial, I²C ®, SPI (TM) 3mA
ADT7519 0.25 n/a 10 7 8-Bit x 4 I2C/SPI, Serial -40 to +120 +2.7V to +5.5V SPI/I2C Compatible Temperature Sensor w/10-Bit-4-Ch ADC & Quad 8-Bit Voltage DAC Control Outputs $3.56 DSP Serial, I²C ®, SPI (TM) 3mA
ADT7411 0.25 +0.5 10 10 --- I2C, I2C/SPI, Serial, SPI -40 to +120 +2.7V to +5.5V SPI®-/I2C®-Compatible, 10-Bit ADC w/ Local & Remote Temp Msmt, 8 GP Analog Inputs, and VDD monitor $2.22 DSP Serial, I²C ®, MICROWIRE (TM), QSPI (TM), SPI (TM) 3mA
ADT7408 0.0625 ±1 12 0 --- I2C, SM Bus -20 to +125 +3V to +3.6V ± 2 Degree C Accurate, 12-Bit Digital Temperature Sensor $0.87 I²C ®, SMBus 550µA
ADT75 0.0625 n/a 12 0 --- I2C, Serial, SM Bus -55 to +125 +3V to +5.5V ±1 Deg C Accuracy, 12-Bit Digital Temperature Sensor $0.66 I²C ®, SMBus 525µA
ADT7301 0.03125 n/a 13 0 --- Serial, SPI -40 to +150 +2.7V to +5.5V 13-Bit, ±1ºC Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23 and 8-Lead MSOP $1.21 DSP Serial, MICROWIRE (TM), QSPI (TM), SPI (TM) 2.2µA
ADT7302 0.03125 n/a 13 0 --- Serial, SPI -40 to +125 +2.7V to +5.25V ±2°C Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23 $0.78 DSP Serial, MICROWIRE (TM), QSPI (TM), SPI (TM) 2.2mA
TMP06 0.025 ±0.5 12 0 --- PWM -40 to +150 +2.7V to +5.5V 0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70 or SOT-23 w/ Open Drain Output $0.66 PWM 650µA
TMP05 0.025 ±0.5 12 0 --- PWM -40 to +150 +2.7V to +5.5V 0.5°C Accurate PWM Temperature Sensor in 5-Lead SC-70 or SOT-23 w/ CMOS/TTL Output $0.70 PWM 650µA
ADT7310 0.0078 ±0.5 16 0 n/a Serial, SPI -55 to +150 +2.7V to +5.5V ±0.5 Deg C Accurate, 16-Bit Digital SPI Temperature Sensor $1.95 SPI (TM) 230µA
ADT7410 0.0078 ±0.5 16 0 --- I2C -55 to +150 +2.7V to +5.5V ±0.5°C Accurate, 16-Bit Digital I2C Temperature Sensor $1.95 I²C ® 230µA
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