Temperature Sensors0 pages

World’s Highest Performance Digital
Temperature Sensors
Flagship Products
•t ADT7420: I C
2

•t ADT7320: SPI
Features
•t Industry-leading accuracy; max accuracy
range: –20°C to +105°C
•t Operating temperature range: –40°C to +150°C
•t 16-bit temperature resolution: 0.0078°C
•t No calibration required
•t No self heating or linearity correction required
•t Power saving mode (1 SPS)
•t Critical temperature indicator
•t Over/undertemperature interrupt
•t 16-lead LFCSP RoHS compliant package
Key Applications
•t RTD and thermistor replacement
•t Medical equipment
•t Cold junction compensation
•t Industrial control and test
•t Food transportation and storage
•t Environmental monitoring and HVAC

Analog Devices’ Digital Temperature Sensors Achieve Highest Accuracy of ∙0.25°C
Over Industry’s Widest Temperature Range
The ADT7420 and ADT7320 digital temperature sensors are fully calibrated, 16-bit resolution, high
linearity sensors that achieve ±0.25°C accuracy over a –20°C to +105°C temperature range.
The higher accuracy eliminates the need to average results, ensuring faster data measurement,
higher precision control loops, and improved energy efficiency and reliability in industrial, instrumentation, and medical applications.
The ADT7420 and ADT7320 digital temperature 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, both of which allow system designers to easily integrate the devices into data
acquisition, optical communications, environmental control systems, medical imaging systems, or
food and pharmaceutical temperature monitors. The new digital temperature sensors also provide
highly accurate system reference temperature measurement to reduce errors in software-based
thermocouple cold junction compensation applications and infrared imaging systems.
These digital temperature sensors are guaranteed to operate over supply voltages from 2.7 V to
5.5 V with an operating temperature range of –40°C to +150°C. Operating at 3.3 V, the supply
current is 210 μA (typical). The sensors include a low power, one-sample-per-second mode that
draws only 46 μA (typical) at 3.3 V and also offer a shutdown mode that reduces supply current
to just 2 μA. Programmable options
include over/undertemperature and
critical temperature indicators.
ADI offers a complete range of
analog and digital temperature
sensors with the diversity to be
used in a broad range of applications. For more information, visit
www.analog.com/temp-sensors.

www.analog.com/temp-sensors