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MAX31865ATP+ The MAX31865ATP+ from Analog Devices is an easy-to-use resistance-to-digital converter optimized for platinum resistance temperature detectors (RTDs). It offers high accuracy and integrated fault detection.
Mfr Part #:

MAX31865ATP+

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX31865ATP+ from Analog Devices is an easy-to-use resistance-to-digital converter optimized for platinum resistance temperature detectors (RTDs). It offers high accuracy and integrated fault detection.
✓ Total Stock: 1,101 pcs
$ Price Range: $2.06

MAX31865ATP+ Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,096 pcs
On Request
1096 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
5 pcs
On Request
5 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX31865ATP+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Function
Interface
Lead Style
Mounting Type
Operating Temperature
Operating Voltage
Output Alarm
Output Fan
Output Type
Sensor Type
Supplier Device Package
Topology
Voltage
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MAX31865ATP+ Description

Short technical summary and product information.

The MAX31865ATP+ by Analog Devices is a versatile RTD-to-Digital converter designed for platinum RTDs, handling resistances from 100Ω to 1kΩ. It simplifies temperature measurement by converting RTD resistance to a digital value via a precision delta-sigma ADC.

 

Key features include a 15-bit ADC resolution, providing a nominal temperature resolution of 0.03125°C, and a total accuracy of ±0.5°C over all operating conditions. The device supports 2-, 3-, and 4-wire sensor connections and communicates using an SPI-compatible interface. It operates within a voltage range of 3V to 3.6V and offers a wide operating temperature range of -40°C to 125°C.

 

Integrated fault detection enhances system reliability, with programmable detection for RTD and cable open/short conditions. The inputs are protected against overvoltage faults up to ±45V. The MAX31865ATP+ is available in a 20-pin TQFN package, suitable for surface mounting.

 

Applications for this converter include industrial equipment, medical equipment, and instrumentation where precise temperature monitoring is critical.

MAX31865ATP+ Quick Information

Product Type: RTD-to-Digital Converter
Series: MAX31865
Canonical Name: MAX31865 Analog Devices / Maxim Integrated RTD-to-Digital Converter
Subcategory: Thermal Management ICs

MAX31865ATP+ Compliance

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

MAX31865ATP+ Estimated Pricing

Qty Low High
1+ $2.06 $2.06

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

MAX31865ATP+ Features

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

MAX31865ATP+ Applications

  • Used in industrial equipment.
  • Suitable for medical equipment.
  • Applicable for instrumentation.
  • Enables precise temperature monitoring.

MAX31865ATP+ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the MAX31865ATP+?

The operating voltage range is 3V to 3.6V.

What is the operating temperature range of the MAX31865ATP+?

The operating temperature range is -40°C to 125°C.

What package options are available for the MAX31865ATP+?

The available package options are 20-TQFN (5x5 mm) and 20-WQFN with exposed pad.

What is the accuracy of the MAX31865ATP+?

The accuracy is ±0.5°C (max).

What is the ADC resolution of the MAX31865ATP+?

The ADC resolution is 15 bits.

What interface does the MAX31865ATP+ use?

It uses an SPI-compatible interface.

What types of RTD sensors are supported by the MAX31865ATP+?

It supports 100Ω to 1kΩ platinum RTDs (PT100 to PT1000) with 2-, 3-, or 4-wire connections.

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