Feature
- Supply voltage range is 3V to 3.6V
- Operating temperature range from -40°C to 125°C, high accuracy facilitates meeting error budgets
- Integration lowers system cost, simplifies design efforts and reduces design cycle time
- Simple conversion of platinum RTD resistance to digital value, fully differential VREF inputs
- Handles 100 ohm to 1Kohm (at 0°C) platinum RTDs (PT100 to PT1000), 21ms (max) conversion time
- Compatible with 2-wire, 3-wire and 4-wire sensor connections, SPI-compatible interface
- Fault detection (open RTD element, RTD shorted to out of range voltage or short across RTD element)
- 15bit ADC resolution, nominal temperature resolution 0.03125NC (varies due to RTD nonlinearity)
- Total accuracy over all operating conditions, 0.5NC (0.05% of full scale) max
- Integrated fault detection increases system reliability, ±45V input protection
Applications
- Equipment Meeting IEC 1000-4-2
- Instruments
- ISDN Modems
- Modems
