Maxim MAX31865AAP+, RTD to Digital Converter -40 → +125 °C 0.5°C, 20-Pin SSOP

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The MAX31865 is an easy-to-use resistance-to-digital converter optimized for platinum resistance temperature detectors (RTDs). An external resistor sets the sensitivity for the RTD being used and a precision delta-sigma ADC converts the ratio of the RTD resistance to the reference resistance into digital form. The MAX31865's inputs are protected against overvoltage faults as large as ±45V. Programmable detection of RTD and cable open and short conditions is included.

Applications include; Industrial equipment, medical equipment & instrumentation.

Features & Benefits:

• Simple Conversion of Platinum RTD Resistance to Digital Value
• High Accuracy
• Over All Operating Conditions
• Integrated Fault Detection - ±45V Input Protection, Fault Detection (Open RTD Element, RTD Shorted to Out-of-Range Voltage, or Short Across RTD Element)
• Handles 100Ω to 1kΩ (at 0°C) Platinum RTDs (PT100 to PT1000)
• SPI-Compatible interface
• 15-Bit ADC resolution
• Fully Differential VREF Inputs

Note

Please note that any defect or non – conformance of this product must be discovered and reported to RS within 20 days of purchase.

Specifications
Attribute Value
Sensor Function Temperature
Output Type Digital
Accuracy 0.5°C
Mounting Type Surface Mount
Pin Count 20
Minimum Operating Temperature -40 °C
Operating Temperature Range -40 → +125 °C
Maximum Operating Temperature +125 °C
Minimum Operating Supply Voltage 3 V
Maximum Operating Supply Voltage 3.6 V
Package Type SSOP
Length 7.33mm
Height 1.78mm
Series MAX31865
Width 5.38mm
Dimensions 7.33 x 5.38 x 1.78mm
Resolution 15 bit
On back order for despatch 01/06/2020, delivery within 5 working days from despatch date.
Price (ex. GST) Each (In a Tube of 66)
$ 5.324
(exc. GST)
$ 6.123
(inc. GST)
units
Per unit
Per Tube*
66 - 66
$5.324
$351.384
132 +
$5.191
$342.606
*price indicative
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