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MAX31865AAP+T The MAX31865AAP+T is an RTD-to-Digital converter from Analog Devices. It offers 15-bit ADC resolution and ±0.5°C accuracy, supporting 2-, 3-, and 4-wire RTD connections.
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MAX31865AAP+T

Available from 5 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX31865AAP+T is an RTD-to-Digital converter from Analog Devices. It offers 15-bit ADC resolution and ±0.5°C accuracy, supporting 2-, 3-, and 4-wire RTD connections.
✓ Total Stock: 25,952 pcs
$ Price Range: $2.06

MAX31865AAP+T Available from 5 distributors

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MAX31865AAP+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Function
Interface
Mounting Type
Operating Temperature
Output Alarm
Output Fan
Output Type
Sensor Type
Supplier Device Package
Topology
Voltage
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MAX31865AAP+T Description

Short technical summary and product information.

The MAX31865AAP+T is an easy-to-use resistance-to-digital converter optimized for platinum resistance temperature detectors (RTDs). It handles 100Ω to 1kΩ platinum RTDs (PT100 to PT1000) and is compatible with 2-, 3-, and 4-wire sensor connections. The device features a 15-bit ADC resolution, providing a nominal temperature resolution of 0.03125°C, with total accuracy over all operating conditions of ±0.5°C maximum.

 

This converter utilizes an SPI-compatible interface for digital communication. It includes integrated fault detection for RTD and cable open/short conditions, along with ±45V input protection, increasing system reliability. The MAX31865 operates within a voltage range of 3V to 3.6V and has an operating temperature range of -40°C to 125°C.

 

Available in a 20-SSOP package, the MAX31865AAP+T is suitable for surface mounting. Its applications include industrial equipment, medical equipment, and instrumentation where precise temperature monitoring is critical.

MAX31865AAP+T Quick Information

Product Type: RTD-to-Digital Converter
Canonical Name: MAX31865 RTD-to-Digital Converter
Subcategory: Thermal Management ICs

MAX31865AAP+T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX31865AAP+T Estimated Pricing

Qty Low High
1+ $2.06 $2.06

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX31865AAP+T Features

  • Simple conversion of RTD resistance to digital.
  • Handles 100Ω to 1kΩ platinum RTDs.
  • Compatible with 2-, 3-, and 4-wire connections.
  • 15-bit ADC resolution for high accuracy.
  • Integrated fault detection increases reliability.

MAX31865AAP+T Applications

  • RTD temperature sensing in industrial process control.
  • Precision thermometry in laboratory instrumentation.
  • Temperature monitoring for HVAC and environmental systems.
  • RTD interface in medical and automotive equipment.

MAX31865AAP+T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range?

The MAX31865AAP+T operates from 3.0V to 3.6V.

What is the operating temperature range?

The device operates from -40°C to +125°C.

What package is available?

The MAX31865AAP+T is available in a 20-SSOP surface-mount package (0.209", 5.30mm width).

What is the ADC resolution?

The integrated ADC has a resolution of 15 bits.

What RTD resistance ranges are supported?

It supports platinum RTDs from 100Ω to 1kΩ at 0°C.

What sensor connection types are compatible?

It is compatible with 2-, 3-, and 4-wire sensor connections.

What is the accuracy of the converter?

The device offers ±0.5°C accuracy over all operating conditions.

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