器件名称: TMP03
功能描述: Serial Digital Output Thermometers
文件大小: 375.53KB 共16页
简 介:a
FEATURES Low Cost 3-Pin Package Modulated Serial Digital Output Proportional to Temperature ± 1.5C Accuracy (typ) from –25 C to +100 C Specified –40 C to +100C, Operation to 150C Power Consumption 6.5 mW Max at 5 V Flexible Open-Collector Output on TMP03 CMOS/TTL Compatible Output on TMP04 Low Voltage Operation (4.5 V to 7 V) APPLICATIONS Isolated Sensors Environmental Control Systems Computer Thermal Monitoring Thermal Protection Industrial Process Control Power System Monitors
Serial Digital Output Thermometers TMP03/TMP04*
FUNCTIONAL BLOCK DIAGRAM
TMP03/04
TEMPERATURE SENSOR VPTAT DIGITAL MODULATOR
VREF
1 DOUT
2 V+
3 GND
PACKAGE TYPES AVAILABLE
TO-92
GENERAL DESCRIPTION
The TMP03/TMP04 is a monolithic temperature detector that generates a modulated serial digital output that varies in direct proportion to the temperature of the device. An onboard sensor generates a voltage precisely proportional to absolute temperature which is compared to an internal voltage reference and input to a precision digital modulator. The ratiometric encoding format of the serial digital output is independent of the clock drift errors common to most serial modulation techniques such as voltageto-frequency converters. Overall accuracy is ± 1.5°C (typical) from –25°C to +100°C, with excellent transducer linearity. The digital output of the TMP04 is CMOS/TTL compatible, and is easily interfaced to the serial inputs of most popular microprocessors. The open-collector output of the TMP03 is……
