Highly accurate digital temperature sensors are simple to integrate
The TMP117 is a single-chip temperature sensor that offers similar performance to platinum resistance temperature detectors (RTDs) while reducing design complexity and power consumption. The TMP117M provides ± 0.1°C accuracy from 30°C to 45°C and supports American Society for Testing and Materials (ASTM) E1112 and International Organization for Standardization (ISO) 80601 requirements for patient thermometers. The new devices enable the speedy development of highly accurate, ultra-low-power patient monitoring, field transmitter and metering applications.
The TMP117 provides a direct readout of temperature, with no additional linearization or acquisition error, and maintains accurate temperature over a wide range:
◦ ±0.1°C from -20°C to +50°C.
◦ ±0.15°C from -40°C to +50°C.
◦ ±0.2°C from -40°C to +100°C.
◦ ±0.25°C from -55°C to +125°C.
◦ ±0.3°C from -55°C to +150°C.
Both the TMP117 and TMP117M are I2C- and SMBus-interface compatible and use only 6.3 µW in operation. The TMP117EVM evaluation board allows developers to quickly evaluate the sensors.