Overview
The TMP117MAIDRVR is a high-precision digital temperature sensor produced by Texas Instruments. It is designed to meet stringent standards such as ASTM E1112 and ISO 80601-2-56 for electronic patient thermometers. This sensor provides a 16-bit temperature result with a resolution of 0.0078 °C and an accuracy of up to ±0.1 °C across the temperature range of –20 °C to 50 °C without the need for calibration. The TMP117MAIDRVR features an I²C- and SMBus™-compatible interface, programmable alert functionality, and supports up to four devices on a single bus. It is also notable for its low power consumption, minimizing the impact of self-heating on measurement accuracy.
Key Specifications
| Parameter | Value |
|---|---|
| Package | WSON (DRV), 6 pins |
| Operating Temperature Range | –55 °C to 150 °C |
| Accuracy | ±0.1 °C (–20 °C to 50 °C), ±0.15 °C (–40 °C to 70 °C), ±0.2 °C (–40 °C to 100 °C), ±0.25 °C (–55 °C to 125 °C), ±0.3 °C (–55 °C to 150 °C) |
| Resolution | 16-bit, 0.0078 °C (1 LSB) |
| Supply Voltage | 1.7 V to 5.5 V (–55 °C to 70 °C), 1.8 V to 5.5 V (–55 °C to 150 °C) |
| Supply Current | 3.5 µA (typical), 150 nA (shutdown) |
| Interface | I²C, SMBus™, 2-Wire |
| EEPROM | 48 bits, general-purpose |
| NIST Traceability | Yes |
Key Features
- High-accuracy temperature sensor with ±0.1 °C accuracy from –20 °C to 50 °C.
- Low power consumption: 3.5 µA at 1-Hz conversion cycle and 150 nA in shutdown mode.
- I²C- and SMBus™-compatible interface.
- Programmable temperature alert limits and selectable averaging.
- Digital offset for system correction.
- General-purpose EEPROM: 48 bits.
- NIST traceability and compliance with ISO/IEC 17025 accredited standards.
- Medical grade: meets ASTM E1112 and ISO 80601-2-56 requirements.
- Replacement for Platinum RTDs (PT100, PT500, PT1000) with comparable accuracy but lower power consumption.
Applications
- Electronic patient thermometers and other medical devices requiring high accuracy.
- Industrial temperature monitoring systems.
- Aerospace and automotive applications where precise temperature measurement is critical.
- Replacement for traditional Platinum RTDs in various industrial and commercial applications.
Q & A
- What is the accuracy of the TMP117MAIDRVR temperature sensor? The TMP117MAIDRVR has an accuracy of up to ±0.1 °C from –20 °C to 50 °C, and varying accuracies across other temperature ranges.
- What is the operating temperature range of the TMP117MAIDRVR? The operating temperature range is –55 °C to 150 °C.
- What is the resolution of the TMP117MAIDRVR? The resolution is 16-bit, which translates to 0.0078 °C per least significant bit (LSB).
- What interfaces does the TMP117MAIDRVR support? It supports I²C, SMBus™, and 2-Wire interfaces.
- How much power does the TMP117MAIDRVR consume? It typically consumes 3.5 µA at a 1-Hz conversion cycle and 150 nA in shutdown mode.
- Does the TMP117MAIDRVR have any integrated memory? Yes, it has 48 bits of general-purpose EEPROM.
- Is the TMP117MAIDRVR NIST traceable? Yes, it is NIST traceable and verified with equipment calibrated to ISO/IEC 17025 accredited standards.
- What are some common applications of the TMP117MAIDRVR? Common applications include electronic patient thermometers, industrial temperature monitoring, aerospace, and automotive systems.
- Can the TMP117MAIDRVR replace traditional Platinum RTDs? Yes, it can replace Platinum RTDs like PT100, PT500, and PT1000 with comparable accuracy but lower power consumption.
- Does the TMP117MAIDRVR meet any specific medical standards? Yes, it meets ASTM E1112 and ISO 80601-2-56 requirements for electronic patient thermometers.
