ADT7320

RECOMMENDED FOR NEW DESIGNS

±0.25°C Accurate, 16-Bit Digital SPI Temperature Sensor

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.65

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Overview

Low power
Power saving 1 sample per second (SPS) mode
700 µW typical at 3.3 V in normal mode
7 µW typical at 3.3 V in shutdown mode
Easy Implementation
Low Power
SPI-compatible interface

Wide operating ranges
Temperature range: −40°C to +150°C
Voltage range: 2.7 V to 5.5 V
Programmable interrupts
Critical overtemperature interrupt
Overtemperature/undertemperature interrupt
See datasheet for additional features

The ADT7320 is a high accuracy digital temperature sensor that offers breakthrough performance over a wide industrial temperature range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0078°C. The ADC resolution, by default, is set to 13 bits (0.0625°C). The ADC resolution is a user programmable mode that can be changed through the serial interface.

The ADT7320 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7320 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7320 is rated for operation over the −40°C to +150°C temperature range.

The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT pin and CT pin can operate in either comparator or interrupt mode.

PRODUCT HIGHLIGHTS

Ease of use, no calibration or correction required by the user.
Low power consumption.
Excellent long term stability and reliability.
High accuracy for industrial, instrumentation, and medical applications.
Packaged in a 16-lead RoHS-compliant, 4 mm x 4 mm LFCSP package.

APPLICATIONS

RTD and thermistor replacement
Thermocouple cold junction compensation
Medical equipment
Industrial controls and test
Food transportation and storage
Environmental monitoring and HVAC
Laser diode temperature controls

Part Models: 2
1ku List Price: Starting From $3.65

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADT7320UCPZ-R2	16-Lead LFCSP (4mm x 4mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADT7320UCPZ-RL7	16-Lead LFCSP (4mm x 4mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 29, 2016 - 16_0026 Qualify TeamQuest Technology, Inc. for Burn-in and Life Test of Military and Aerospace Devices
		PCN16_0026_Form Material_Report Qualification Plan
ADT7320UCPZ-R2	PRODUCTION	PCN16_0026_Form Material_Report Qualification Plan
May 11, 2014 - 13_0231 Assembly Transfer of Select 4x4 and 5x5mm LFCSP Products to STATS ChipPAC China.
		PCN13_0231_Form Material_Report Detailed Change Description Qualification Report Summary
ADT7320UCPZ-R2	PRODUCTION
ADT7320UCPZ-RL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

ADT74x, ADT73x GitHub no-OS Driver Source Code

Can't find the software or driver you need?

Tools & Simulations

IBIS Model 1

ADT7320 IBIS Model

Evaluation Kits

±0.1°C, ±0.25°C & ±0.5°C Accurate Temperature Sensor Evaluation Platform

Buy Now View Details

Features and Benefits

Fully featured Arduino shield for the ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 digital temperature sensors. On board ribbon cable connectors facilitate either I²C or SPI interface to miniature remote sensor boards.

PC control in conjunction with the following Software IDE’s:

Analysis | Control | Evaluation (ACE) Software
Arduino
Mbed

PC control in conjunction with the following Hardware Systems:

SDP-S, SDP-B, SDP-K1 and Arduino

Compatible with Windows 7, Windows 8, and Windows 10

Temperature Sensor Evaluation Kit contains the following boards:

EVAL-ADT7420ARDZ
EVAL-ADT7420MBZ
EVAL-ADT7320MBZ

The following evaluation board can be ordered separately where ±0.1°C accurate measurements are required.

EVAL-ADT7422MBZ

Product Details

The EVAL-TempSense-ARDZ is an evaluation board kit containing three evaluation boards that allows easy evaluation of the functionality of ADIs precision digital temperature sensors. Interface to the sensors can be either directly on the Arduino shield or by ribbon cable connected to external sensors. Consult the ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 data sheets in conjunction with the user guide when using the EVAL-TempSense-ARDZ with the Arduino integrated development environment (IDE) or the Analysis Control Evaluation (ACE) Software.

The ADT7410, ADT7420, ADT7422, ADT7310, and ADT7320 are high accuracy digital temperature sensors offering breakthrough performance over a wide industrial temperature range. The devices contain an internal band gap reference, a temperature sensor, and a 16-bit analog-to-digital converter (ADC) to monitor and digitize the temperature to 0.0078°C resolution. The devices are available in I²C or SPI versions.