Analog Devices has introduced two calibrated, 16bit resolution, high-linearity digital temperature sensors. The high-precision, low-drift ADT7420 and ADT7320 sensors achieve ±0.25°C accuracy over a -20 to +105°C temperature range. The sensors also offer ±0.5ºC accuracy over the -40 to +125°C temperature range. The high accuracy eliminates the need to average results, ensuring fast data measurement, high-precision control loops, and improved energy efficiency and reliability in industrial, instrumentation, and medical applications. The sensors also provide accurate system reference temperature measurement to reduce errors in software-based, thermocouple cold-junction compensation applications and infrared imaging systems. The sensors are plug-in ready and require no additional signal conditioning or calibration. The offerings are available with I²C (ADT7420) or SPI (ADT7320) digital interfaces, which allow system designers to easily integrate the devices into data acquisition, optical communications, environmental control systems, medical equipment, or food and pharmaceutical temperature monitors.
