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Microchip Technology Incorporated (Nasdaq: MCHP) is a leading global supplier of microcontrollers and analog semiconductors, providing low-risk product development, lower total system cost and faster performance for thousands of consumer products around the world. product launch time.
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Temperature sensor
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- 产品描述
- 产品规格及参数
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Microchip Technology Incorporated (Nasdaq: MCHP) is a leading global supplier of microcontrollers and analog semiconductors, providing low-risk product development, lower total system cost and faster performance for thousands of consumer products around the world. product launch time.
Temperature sensor ICs take full advantage of the linearity and predictable temperature characteristics of silicon PN junctions. Since these ICs are active circuits made using conventional semiconductor processes, they can be provided in various form factors. They have many features, such as digital interfaces, ADC inputs, fan control, etc., that other technologies cannot provide. The operating temperature range of temperature sensor ICs can be as low as -55°C and as high as +125°C, and the upper temperature limit of some products can reach around +150°C. Common temperature sensor ICs are introduced below.
Analog temperature sensor
Analog temperature sensor ICs convert temperature into voltage and in some cases into current. The simplest voltage output analog temperature sensor has only three active terminals: ground, power input and signal output. Other analog sensors with enhanced functionality provide more inputs or outputs, such as comparators or voltage reference outputs. Analog temperature sensors exploit the temperature characteristics of bipolar transistors to produce an output voltage proportional to temperature. Amplifying this voltage signal and applying a certain bias can establish an appropriate change relationship between the sensor output voltage and the die temperature, and obtain higher temperature measurement accuracy.
Local digital temperature sensor
Integrating an analog temperature sensor with an ADC can form a temperature sensor that directly outputs a digital signal. Such devices are often called digital temperature sensors or local digital temperature sensors. "Local" means that the sensor is measuring its own temperature. This mode of operation contrasts with remote sensors, which measure the temperature of an external IC or discrete transistor. Basic digital temperature sensors simply measure temperature, and the temperature data is read through a variety of specific interfaces, including: SPI/3-wire, I2C, 1-Wire, and PWM. Complex digital sensors have more functions, such as: high/low temperature alarm output, setting trigger threshold
registers and EEPROM, etc.
Remote digital temperature sensor
Remote digital temperature sensors are also called remote sensors or diode temperature sensors. The remote sensor is used to measure the temperature of an external transistor, which can be a discrete transistor or a transistor integrated inside another IC. Microprocessors, field programmable gate arrays (FPGAs), and ASICs often contain one or more temperature sensors, often called temperature diodes, which have an important advantage over remote temperature sensors: they can monitor temperatures at multiple points with a single IC.
Product Temps Monitored Typical Accuracy Max. Accuracy 25℃ Temp. Range℃ EMC1212 2 1 3 0~85 EMC1046 6 0.25 1 -40 ~125 EMC1047 7 0.25 1 -40~125 EMC1053 3 0.5 1 -40~125 EMC1063 3 0.5 1 -40~125 EMC1428 8 0.25 1 -40~125 EMC1422 2 0.25 1 -40~125 EMC1423 3 0.25 1 -40~125 EMC1424 4 0.25 1 -40~125 EMC1033 3 1 3 -40~125 EMC1043 3 0.5 1 -40~125 EMC1072 2 0.25 1 -40~125 EMC1073 3 0.25 1 -40~125 EMC1074 4 0.25 1 -40~125 EMC1182 2 0.25 1 -40~125 EMC1183 3 0.25 1 -40~125 EMC1184 4 0.25 1 -40~125 EMC1186 2 0.25 1 -40~125 EMC1187 3 0.25 1 -40~125 EMC1188 4 0.25 1 -40~125 EMC1402 2 0.25 1 -40~125 EMC1403 3 0.25 1 -40~125 EMC1404 4 0.25 1 -40~125 EMC1412 2 0.25 1 -40~125 EMC1413 3 0.25 1 -40~125 EMC1414 4 0.25 1 -40~125 EMC1001 1 0.5 1.5 -25~125 MCP9800 1 0.5 1 -55~125 MCP9801 1 0.5 1 -55~125 MCP9802 1 0.5 1 -55~125 MCP9803 1 0.5 1 -55~125 MCP9804 1 0.25 1 -40~125 MCP9805 1 2 3 -40~125 MCP9808 1 0.25 0.5 -40~125 MCP9843 1 0.5 3 -40~125 TC74 1 0.5 2 -40~125 TCN75 1 0.5 3 -55~125 TCN75A 1 0.5 3 -40~125 EMC1501 1 0.5 1 -40~125 MCP98242 1 2 3 -40~125 MCP98243 1 0.5 3 -40~125 MCP98244 0 0.2 1 -40~125 MCP9844 1 0.2 1 -40~125 TC72 1 0.5 2 -55~125 TC77 1 0.5 1 -55~125 EMC1102 2 0.5 3 -40~125 EMC1103 3 0.5 3 -40~125 EMC1133 3 0.5 3 -40~125 EMC1152 2 0.5 3 -40~125 EMC1152-40-1 2 0.5 3 -40~125 MCP9501 1 1 4 -40~125 MCP9502 1 1 4 -40~125 MCP9503 1 1 4 -40~125 MCP9504 1 1 4 -40~125 TC620 1 1 3 -40~125 MCP9509 1 0.5 -40~125 MCP9510 1 0.5 N/A -40~125 TC622 1 1 5 -40~125 TC623 1 1 3 -40~125 TC624 1 1 5 -40~125 TC621 1 1 3 -40~125 MCP9700 1 1 4 -40~150 MCP9700A 1 1 2 -40~150 MCP9701 1 1 4 -40~125 MCP9701A 1 1 2 -40~125 TC1046 1 0.5 2 -40~125 TC1047 1 0.5 2 -40~125 TC1047A 1 0.5 2 -40~125
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