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Name: MAX31865ATP+
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX31865ATP+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc./Maxim Integrated MAX31865ATP+

Part No.:: MAX31865ATP+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Package:: 20-WQFN Exposed Pad

Datasheet:: MAX31865ATP+.pdf

Description:: IC RTD TO DIGITAL CONVERT 20QFN

In Stock:: 3302

Quantity:: Add To Cart

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MAX31865ATP+ Specifications

Packaging:
Tray
Series:
-
ProductStatus:
Active
Function:
Temp Monitoring System (Sensor)
SensorType:
External
SensingTemperature:
-
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

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MAX31865ATP+ information

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MAX31865ATP+ Typical application Circuitry

MAX31865ATP+

The MAX31865ATP+ is a precision RTD-to-digital converter from Maxim Integrated, tailored for temperature sensing with platinum resistance thermometers such as Pt100 and Pt1000. This integrated circuit is frequently employed in applications requiring meticulous temperature measurement, like industrial systems, precision climate control, and temperature regulation within sensitive medical equipment.

1. Voltage Provision (VDD Pin): The VDD pin of MAX31865ATP+ should be connected to a power supply within 3.0V to 3.6V range. The power source needs to be stable to maintain the accuracy of the temperature readings.

2. System Grounding (GND Pin): The GND pin of the MAX31865ATP+ is connected to the system's ground, providing a reference for the power supply and ensuring signal integrity.

3. RTD Sensor Interfacing (RTDIN+, RTDIN- Pins): The RTDIN+ and RTDIN- pins should be connected to the platinum RTD sensor. Correct polarity is crucial for accurate resistance measurement, which is the basis for temperature calculations.

4. Reference Resistor (REFIN+, REFIN- Pins): Connect a precision reference resistor to these pins. The MAX31865ATP+ utilizes this resistor to source a current across the RTD, which is a critical part of the resistance measurement process.

5. SPI Communication (SDO, SDI, SCLK, CS Pins): For communication with a microcontroller via SPI, connect the SDO pin to the microcontroller's MISO line, the SDI pin to MOSI, the SCLK pin to the microcontroller's SPI clock, and the CS pin to a digital output that will serve as the chip select.

6. Fault Monitoring (FAULT Pin): The FAULT pin is used by the MAX31865ATP+ to indicate a fault condition. Connect this pin to an interrupt or input pin on your microcontroller to detect and respond to fault conditions.

7. Configuration and Operation: Use SPI commands to configure the MAX31865ATP+ settings, such as the Vbias, conversion mode, and fault detection. Ensure the software is structured to handle SPI communication efficiently and read the fault status as well as the temperature data.

8. Placement for Thermal Stability: Install the MAX31865ATP+ away from heat sources and in an environment that minimizes thermal fluctuation to avoid affecting the cold junction compensation.

Precision in connecting the MAX31865ATP+ is key to leveraging its capabilities. Accurate wiring and configuration according to the datasheet recommendations will allow the device to deliver reliable temperature data, which is essential for maintaining the high performance of temperature-dependent systems.

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6. What is the process for return or replacement of MAX31865ATP+?

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MAX31865ATP+.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations