ADT7420
Info : RECOMMENDED FOR NEW DESIGNS
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ADT7420

±0.25°C Accurate, 16-Bit Digital I2C Temperature Sensor

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $3.82
Features
  • High performance
    • Temperature accuracy
      • ±0.20°C from −10°C to +85°C at 3.0 V
      • ±0.25°C from −20°C to +105°C from 2.7 V to 3.3 V
    • 16-bit resolution: 0.0078°C
  • Ultralow temperature drift: 0.0073°C
    • NIST traceable or equivalent
    • Fast first temperature conversion on power-up of 6 ms
  • Easy implementation
    • No temperature calibration/correction required by user
    • No linearity correction required
  • 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
  • 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
  • I2C-compatible interface
  • 16-lead, 4 mm × 4 mm LFCSP RoHS-compliant package
Additional Details
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The ADT7420 is a high accuracy digital temperature sensor offering breakthrough performance over a wide industrial range, housed in a 4 mm × 4 mm LFCSP package. It contains an internal band gap reference, a temperature sensor, and a 16-bit ADC to monitor and digitize the temperature to 0.0078°C resolution. 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 ADT7420 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 ADT7420 has a shutdown mode that powers down the device and offers a shutdown current of typically 2.0 μA at 3.3 V. The ADT7420 is rated for operation over the −40°C to +150°C temperature range.

Pin A0 and Pin A1 are available for address selection, giving the ADT7420 four possible I2C addresses. 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 comparator and interrupt event modes.

Product Highlights

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

Applications

  • RTD and thermistor replacement
  • Thermocouple cold junction compensation
  • Medical equipment
  • Industrial control and test
  • Food transportation and storage
  • Environmental monitoring and HVAC
  • Laser diode temperature control
Part Models 2
1ku List Price Starting From $3.82

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADT7420UCPZ-R2
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ADT7420UCPZ-RL7
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Product Lifecycle

PCN

Jul 29, 2016

- 16_0026

Qualify TeamQuest Technology, Inc. for Burn-in and Life Test of Military and Aerospace Devices

May 11, 2014

- 13_0231

Assembly Transfer of Select 4x4 and 5x5mm LFCSP Products to STATS ChipPAC China.

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 29, 2016

- 16_0026

arrow down

Qualify TeamQuest Technology, Inc. for Burn-in and Life Test of Military and Aerospace Devices

May 11, 2014

- 13_0231

arrow down

Assembly Transfer of Select 4x4 and 5x5mm LFCSP Products to STATS ChipPAC China.

Software & Part Ecosystem

Software & Part Ecosystem

Can't find the software or driver you need?

Request a Driver/Software
Evaluation Kit

Evaluation Kits 4

reference details image

EVAL-ADT7420-PMDZ

+/-0.25 degree Celsius Temperature Measurement PMOD Board

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EVAL-ADT7420-PMDZ

+/-0.25 degree Celsius Temperature Measurement PMOD Board

+/-0.25 degree Celsius Temperature Measurement PMOD Board

Features and Benefits

  • 0.25 Degree Celsius Temperature Measurement Accurate
  • I2C PMOD Connector
  • Connectable to FPGA and MCU Platforms

Product Detail

The PMOD compatible evaluation/prototyping board is a small form factor, low cost ambient temperature sensor measurement board. When prototyping, this board is used in conjunction with the ADICUP360 or the ADICUP3029 development platform. Direct electrical and physical connection will enable you to get started quickly with hardware and software, to help develop your solution.

I2C PMOD peripheral connectors can also be found on many 3rd party MCU or FPGA development boards, where the EVAL-ADT7420-PMDZ can be connected directly into those systems, and you can develop your own code using our reference code below.

reference details image

EV-COG-AD3029

ADuCM3029 Cog Development Platform for Ultra Low Power Applications

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EV-COG-AD3029

ADuCM3029 Cog Development Platform for Ultra Low Power Applications

ADuCM3029 Cog Development Platform for Ultra Low Power Applications

Features and Benefits

  • On-board ultra-low power ARM Cortex M3 MCU
  • No external Debugger/Emulator Tools required
  • Small form factor (75X35 mm )
  • Multiple power options – USB, Coincell, External, Li-Ion
  • Onboard peripherals – Accelerometer, Temperature sensor
  • Compatible with ADI RF daughter cards, and RF modules
  • Compatible with ADI application add-on boards (Gears)
  • Expansion Connectors and Jumpers for providing external access to all MCU signals

Product Detail

The EV-COG-AD3029 is a development platform for Analog Devices Ultra Low Power technology across ADI's MCU and RF transceiver portfolio. The board uses CrossCore Embedded Studio, an open source Eclipse based Interactive Development Environment (IDE), which can be downloaded free of charge. The platform contains many hardware and software example projects to make it easier for customers to prototype and create solutions for Internet of Things (IoT) applications.


A Cog development system may consist of these


  • A MCU Cog that highlights the differentiating values of ADI ULP portfolio.
  • An optional add-on board (Gear) for application specific use case.
  • An optional wireless board (RF-Cog) for connectivity

The Cog development system objective is to rapidly create a development/prototyping capability focused on industrial, professional, pro-sumer customers, with a flexible radio, microprocessor, sensor and application development environment.

reference details image

EV-COG-AD4050

ADuCM4050 variant of Cog Development Platform for Analog Devices Ultra Low Power Technology across MCU and RF Transceiver Portfolio

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EV-COG-AD4050

ADuCM4050 variant of Cog Development Platform for Analog Devices Ultra Low Power Technology across MCU and RF Transceiver Portfolio

ADuCM4050 variant of Cog Development Platform for Analog Devices Ultra Low Power Technology across MCU and RF Transceiver Portfolio

Features and Benefits

  • On-board ultra-low power ARM Cortex M4F MCU
  • No external Debugger/Emulator Tools required
  • Small form factor (75X35mm )
  • Multiple power options – USB, Coincell, External, Li-Ion
  • Onboard peripherals – Accelerometer, Temperature sensor
  • Compatible with ADI RF daughter cards, and RF modules
  • Compatible with ADI application add-on boards (Gears)
  • Expansion Connectors and Jumpers for providing external access to all MCU signals

Product Detail

The EV-COG-AD4050 is a development platform for Analog Devices Ultra Low Power technology across ADI's MCU and RF transceiver portfolio. The board uses CrossCore Embedded Studio, an open source Eclipse based Interactive Development Environment (IDE), which can be downloaded free of charge. The platform contains many hardware and software example projects to make it easier for customers to prototype and create solutions for Internet of Things (IoT) applications.


A Cog development system may consist of these


  • A MCU Cog that highlights the differentiating values of ADI ULP portfolio.
  • An optional add-on board (Gear) for application specific use case.
  • An optional wireless board (RF-Cog) for connectivity.

The Cog development system objective is to rapidly create a development/prototyping capability focused on industrial, professional, pro-sumer customers, with a flexible radio, microprocessor, sensor and application development environment.

reference details image

EV-TempSense-ARDZ

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

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EV-TempSense-ARDZ

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

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

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 Detail

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.

Tools & Simulations

Tools & Simulations 3

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

Purchase Linduino

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