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MAX31855KASA+T
+Lista de MateriaisIC CONV THERMOCOUPLE-DGTL SOIC
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FabricanteAnalog Devices Inc./Maxim Integrated
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Peça do Fabricante #MAX31855KASA+T
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Pacote SOIC-8
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Em Estoque5318
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Thermocouple to Digital Converter |
| Input Type | Thermocouple (Multiple) |
| Output Type | Digital |
| Supply Current | 900 µA |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features of the MAX31855 include cold-junction compensation, which ensures accurate temperature readings regardless of ambient temperature variations. It provides a 14-bit digital output, offering fine resolution, and can detect both internal and external temperatures. The IC communicates via a simple Serial Peripheral Interface (SPI), making it easy to integrate with various microcontrollers and systems.
Additionally, the MAX31855KASA+T includes fault detection capabilities that identify issues such as open thermocouple connections and short circuits. This enhances the reliability and safety of temperature monitoring applications. The IC is commonly used in industrial, consumer, and scientific applications where precise temperature measurement is critical.
Equivalent
1. MAX6675 - Another chip from Maxim Integrated for K-type thermocouples.
2. MCP9600 - A Microchip Technology thermocouple EMF-to-temperature converter.
3. AD8495 - An Analog Devices cold junction compensated amplifier for thermocouples.
4. LTC2983 - A Linear Technology (now Analog Devices) multi-sensor temperature measurement IC.
These offer similar functionalities and can be considered alternatives based on your specific design requirements.
Features
1. Wide Temperature Range: Supports readings from -200°C to +1350°C for K-type thermocouples.
2. Cold-Junction Compensation: Automatically compensates for ambient temperature variations at the connection point.
3. 14-Bit, 0.25°C Resolution: Offers high-resolution temperature measurements for accurate readings.
4. SPI-Compatible Interface: Uses a simple 4-wire Serial Peripheral Interface (SPI) for easy integration with microcontrollers.
5. Fault Detection: Provides alerts for open thermocouple, over/under voltage, and shorted thermocouple conditions.
6. Low Power Consumption: Efficiently designed for minimal power usage, making it suitable for battery-powered applications.
7. Compact Package: Available in a space-saving 8-pin SOIC package, making it easy to integrate into various designs.
8. Precision: Ensures high accuracy with minimal error, ideal for industrial, automotive, and consumer applications.
These features make the MAX31855KASA+T an excellent choice for applications requiring precise and reliable temperature measurement and monitoring.
Pinout
Here are the pin functions:
1. GND (Pin 1): Ground reference point.
2. CS (Pin 2): Chip select input; active-low signal.
3. SO (Pin 3): Serial data output.
4. VCC (Pin 4): Positive supply voltage (3.0V to 3.6V).
5. SCK (Pin 5): Serial clock input.
6. T- (Pin 6): Thermocouple negative input.
7. T+ (Pin 7): Thermocouple positive input.
8. NC (Pin 8): No internal connection; often used for mechanical support.
This configuration enables the MAX31855 to provide precise temperature readings with cold-junction compensation, allowing direct connection to a microcontroller for temperature data acquisition.