Mfr Part #:

MAX31865AAP

Mfr Name: Analog Devices / Maxim Integrated

The MAX31865AAP from Analog Devices / Maxim Integrated is a resistance-to-digital converter optimized for platinum resistance temperature detectors (RTDs). It offers high accuracy and integrated fault detection.

✓ Total Stock: 11,740 pcs

$ Price Range: $0.99

MAX31865AAP Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	10,044 pcs On Request	10044 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Xingangxin ✓ Non-Authorised Inventory information	1,696 pcs On Request	1696 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

MAX31865AAP Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Analog Devices / Maxim Integrated
Junction Temperature	+150°C
Operating Temperature	-40°C to +125°C
Operating Voltage	-0.3V to +4.0V
Storage Temperature	-65°C to +150°C

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MAX31865AAP Description

Short technical summary and product information.

The MAX31865AAP by Analog Devices / Maxim Integrated is an easy-to-use resistance-to-digital converter designed for platinum resistance temperature detectors (RTDs). It simplifies the conversion of RTD resistance to a digital value, supporting 100Ω to 1kΩ platinum RTDs (PT100 to PT1000) and compatible with 2-, 3-, and 4-wire sensor connections.

This device features 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 MAX31865AAP includes an SPI-compatible interface for digital communication and a maximum conversion time of 21ms. Its inputs are protected against overvoltage faults up to ±45V, and it offers programmable detection for RTD and cable open or short conditions, enhancing system reliability.

Available in TQFN and SSOP packages, the MAX31865AAP operates within a temperature range of -40°C to +125°C. Its integrated fault detection capabilities and high accuracy make it suitable for applications in industrial equipment, medical equipment, and instrumentation.

MAX31865AAP Quick Information

Product Type: RTD-to-Digital Converter

Canonical Name: MAX31865AAP RTD-to-Digital Converter

Subcategory: Sensor and Detector Interfaces

MAX31865AAP Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MAX31865AAP Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

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

MAX31865AAP Features

Converts RTD resistance to digital value.
Handles 100Ω to 1kΩ platinum RTDs.
Supports 2-, 3-, and 4-wire sensor connections.
Features 15-bit ADC resolution for accuracy.
Includes ±45V input protection and fault detection.

MAX31865AAP Applications

Ideal for industrial temperature sensing.
Used in HVAC system monitoring.
Suitable for process control applications.
Perfect for medical temperature probes.

MAX31865AAP FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the MAX31865AAP?

The operating voltage range is -0.3V to +4.0V relative to GND1.

What package options are available for the MAX31865AAP?

The MAX31865AAP is available in TQFN and SSOP packages.

What is the operating temperature range?

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

What is the ADC resolution of the MAX31865AAP?

The ADC resolution is 15 bits.

What types of RTD sensors are supported?

The device supports platinum RTDs from 100Ω to 1kΩ (PT100 to PT1000) at 0°C.

What is the conversion time?

The maximum conversion time is 21ms.

Does the MAX31865AAP support 2-wire, 3-wire, or 4-wire sensor connections?

It supports 2-, 3-, and 4-wire sensor connections.