MAX31865ATP+T
Thermal Management
Technical Specifications
| Type | Description |
|---|---|
| Working Voltage V | 3.3 V |
| Operating Temp | -40°C ~ +125°C |
| Features | Digital filtering |
| Chiptype | - |
| Type | Description |
|---|---|
| Quiescent Current (Iq) | 1.5mA |
| Resolution (Bits) | -;15 |
| Interface Type | SPI |
| Package / Case | QFN-20-EP |
Product Introduction
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.
Features
- Integration Lowers System Cost, Simplifies Design Efforts, and Reduces Design Cycle Time
- Simple Conversion of Platinum RTD Resistance to Digital Value Handles 100Ω to 1kΩ (at 0°C) Platinum RTDs (PT100 to PT1000)
- Compatible with 2-, 3-, and 4-Wire Sensor Connections
- SPI-Compatible Interface
- 20-Pin TQFN and SSOP Packages
- High Accuracy Facilitates Meeting Error Budgets
- 15-Bit ADC Resolution; Nominal Temperature Resolution 0.03125°C (Varies Due to RTD Nonlinearity)
- Total Accuracy Over All Operating Conditions: 0.5°C (0.05% of Full Scale) max
- Fully Differential VREF Inputs
- 21ms (max) Conversion Time
- Integrated Fault Detection Increases System Reliability
Applications
- - Industrial Equipment - Medical Equipment Instrumentation
Datasheet
Alternative Parts
Common MAX31865ATP+T alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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