仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Temp Monitoring System (Sensor) |
| SensorType | External |
| Accuracy | ±0.5°C(Max) |
| Topology | ADC (Sigma Delta), Comparator, Register Bank |
| OutputType | SPI |
| OutputAlarm | No |
| OutputFan | No |
| Voltage-Supply | 3V ~ 3.6V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 20-SSOP (0.209, 5.30mm Width) |
概要
Description
The MAX31865AAP+T is a sophisticated analog-to-digital converter designed for precise temperature measurement using Resistance Temperature Detectors (RTDs). Specifically, it supports PT100 and PT1000 RTD types and simplifies temperature detection by converting RTD resistance into a digital signal.
Key features of the MAX31865 include a simple 4-wire SPI interface for communication with microcontrollers, integrated fault detection for wiring errors such as open and short circuits, and adjustable filters to manage noise. It operates over a wide temperature range and supports both 2, 3, and 4-wire configurations, offering flexibility in various applications.
The device is packaged in a compact TQFN or TSSOP form factor, making it suitable for space-constrained applications. Its low power consumption and built-in voltage reference enhance efficiency and accuracy. This makes the MAX31865 ideal for industrial, scientific, and consumer applications where precise temperature monitoring is critical.
Key features of the MAX31865 include a simple 4-wire SPI interface for communication with microcontrollers, integrated fault detection for wiring errors such as open and short circuits, and adjustable filters to manage noise. It operates over a wide temperature range and supports both 2, 3, and 4-wire configurations, offering flexibility in various applications.
The device is packaged in a compact TQFN or TSSOP form factor, making it suitable for space-constrained applications. Its low power consumption and built-in voltage reference enhance efficiency and accuracy. This makes the MAX31865 ideal for industrial, scientific, and consumer applications where precise temperature monitoring is critical.
Equivalent
The MAX31865AAP+T is a precision RTD-to-digital converter used for temperature measurement. Equivalent products include the ADT7310 and the PT100/PT1000 interface ICs like the Texas Instruments TMP117, and the Analog Devices' AD712. Ensure compatibility in terms of input type, accuracy, and communication protocol when considering equivalents. Always verify the specifications against your application's requirements.
Features
The MAX31865AAP+T is a sophisticated RTD-to-digital converter designed for temperature measurement applications. It is tailored to work with platinum RTDs like PT100 and PT1000 sensors. Among its key features are a precision 15-bit ADC (Analog-to-Digital Converter) that ensures accurate temperature readings. It supports 2-, 3-, and 4-wire RTD configurations, which provide flexibility in various applications and enhance measurement accuracy by compensating for wire resistance.
The device includes configurable fault detection circuitry, which alerts users to issues such as short circuits, open circuits, and overvoltage conditions. Additionally, the MAX31865 offers a simple SPI (Serial Peripheral Interface) for easy integration with microcontrollers and digital systems. Its operating voltage ranges from 3.0V to 3.6V, allowing compatibility with a wide range of devices.
The integrated low-noise amplifier and programmable current sources further contribute to its high precision and low error rates. These features make the MAX31865 a reliable and versatile choice for industrial, consumer, and environmental temperature monitoring applications.
The device includes configurable fault detection circuitry, which alerts users to issues such as short circuits, open circuits, and overvoltage conditions. Additionally, the MAX31865 offers a simple SPI (Serial Peripheral Interface) for easy integration with microcontrollers and digital systems. Its operating voltage ranges from 3.0V to 3.6V, allowing compatibility with a wide range of devices.
The integrated low-noise amplifier and programmable current sources further contribute to its high precision and low error rates. These features make the MAX31865 a reliable and versatile choice for industrial, consumer, and environmental temperature monitoring applications.
Pinout
The MAX31865AAP+T is an RTD-to-digital converter designed for platinum resistance temperature detectors (RTDs). It is typically housed in a 16-pin TQFN (Thin Quad Flat No-lead) package. The pin functions generally include:
1. VDD: Supply voltage input.
2. GND: Ground connection.
3. SDI: Serial data input for SPI communication.
4. SDO: Serial data output for SPI communication.
5. SCLK: Serial clock input for SPI communication.
6. CS: Chip select for SPI communication.
7. RTDIN+: Positive RTD input.
8. RTDIN-: Negative RTD input.
9. REFIN+: Positive reference resistor input.
10. REFIN-: Negative reference resistor input.
11. FILT: Filter connection for noise reduction.
12. DRDY: Data ready output.
13. FAULT: Fault detection output.
14. DNC: Do not connect; reserved for internal use.
15. A0, A1: Address inputs for configuring device setup.
Be sure to consult the official datasheet for precise specifications and detailed information, as the pin configuration and functions may vary slightly based on the manufacturer’s implementation.
1. VDD: Supply voltage input.
2. GND: Ground connection.
3. SDI: Serial data input for SPI communication.
4. SDO: Serial data output for SPI communication.
5. SCLK: Serial clock input for SPI communication.
6. CS: Chip select for SPI communication.
7. RTDIN+: Positive RTD input.
8. RTDIN-: Negative RTD input.
9. REFIN+: Positive reference resistor input.
10. REFIN-: Negative reference resistor input.
11. FILT: Filter connection for noise reduction.
12. DRDY: Data ready output.
13. FAULT: Fault detection output.
14. DNC: Do not connect; reserved for internal use.
15. A0, A1: Address inputs for configuring device setup.
Be sure to consult the official datasheet for precise specifications and detailed information, as the pin configuration and functions may vary slightly based on the manufacturer’s implementation.
Manufacturer
The MAX31865AAP+T is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing analog, mixed-signal, and digital signal processing integrated circuits. These components are used in a wide variety of electronic equipment, with applications spanning industries such as consumer electronics, telecommunications, automotive, aerospace, industrial automation, and healthcare. Known for its innovation and technical expertise, Analog Devices aims to solve complex engineering challenges with high-performance solutions.
Application
The MAX31865AAP+T is a precision RTD-to-digital converter commonly used in temperature measurement and control applications. It is ideal for industrial automation, HVAC systems, and process control where accurate temperature monitoring is critical. The device supports 2-, 3-, and 4-wire RTD configurations, making it versatile for different RTD sensor types. Additionally, it can be used in medical equipment, consumer electronics, and automotive systems where precise temperature readings are necessary. Its robust design allows it to function effectively in harsh environmental conditions, making it suitable for outdoor and rugged industrial applications.
Package
The MAX31865AAP+T is a surface-mount package type, specifically a 20-pin TQFN (Thin Quad Flat No-Lead) package. It is designed for RTD-to-digital conversion and is used in temperature sensing applications.
