ADT7410 Analog Devices, ADT7410 Datasheet

ADT7410

Manufacturer Part Number

ADT7410

Description

16-Bit Digital I2C Temperature Sensor

Manufacturer

Analog Devices

Datasheet

1.ADT7410.pdf (24 pages)

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FEATURES

13- or 16-bit user selectable temperature-to-digital converter

Temperature accuracy: ±0.5°C from −40°C to +105°C

No temperature calibration/correction required by user

Power saving 1 sample per second (SPS) mode

Fast first conversion on power-up of 6 ms

Operating temperature: −55°C to +150°C

Operating voltage: 2.7 V to 5.5 V

Critical overtemperature indicator

Programmable overtemperature/undertemperature interrupt

Low power consumption: 700 μW typical at 3.3 V

Shutdown mode for lower power: 7 μW typical at 3.3 V

8-lead narrow SOIC RoHS-compliant package

APPLICATIONS

Medical equipment

Environmental control systems

Computer thermal monitoring

Thermal protection

Industrial process control

Power system monitors

Hand-held applications

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

C-compatible interface

CONFIGURATION

TEMPERATURE

VALUE

CRIT

HIGH

HYST

LOW

FUNCTIONAL BLOCK DIAGRAM

TEMPERATURE

REFERENCE

INTERNAL

SENSOR

POINTER

C INTERFACE

Figure 1.

GND

OSCILLATOR

MODULATOR

INTERNAL

FILTER

LOGIC

±0.5°C Accurate, 16-Bit Digital

Σ-Δ

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

GENERAL DESCRIPTION

The ADT7410 is a high accuracy digital temperature sensor

in a narrow SOIC package. It contains a band gap temperature

reference and a 13 bit ADC to monitor and digitize the temper-

ature to a 0.0625°C resolution. The ADC resolution, by default,

is set to 13 bits (0.0625°C). This can be changed to 16 bits

(0.0078°C) by setting Bit 7 in the configuration register

(Register Address 0x03).

The ADT7410 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 typi-

cally 210 μA. The ADT7410 has a shutdown mode that powers

down the device and offers a shutdown current of typically 2 μA.

The ADT7410 is rated for operation over the −55°C to +150°C

temperature range.

Pin A0 and Pin A1 are available for address selection, giving the

ADT7410 four possible I

drain output that becomes active when the temperature exceeds

a programmable critical temperature limit. The default critical

temperature limit is 147°C. The INT pin is also an open-drain

output that becomes active when the temperature exceeds a

programmable limit. The INT and CT pins can operate in either

comparator or interrupt mode.

C Temperature Sensor

CRIT

HIGH

LOW

ADT7410

C® addresses. The CT pin is an open-

INT

SCL

SDA

ADT7410

www.analog.com

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