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ADT7410 Arkusz danych(PDF) 1 Page - Analog Devices |
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ADT7410 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 25 page ±0.5°C Accurate, 16-Bit Digital I2C Temperature Sensor Data Sheet ADT7410 Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2009–2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES High performance Temperature accuracy ±0.5°C from −40°C to +105°C (2.7 V to 3.6 V) ±0.4°C from −40°C to +105°C (3.0 V) 16-bit temperature resolution: 0.0078°C 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: −55°C to +150°C Voltage range: 2.7 V to 5.5 V Programmable interrupts Critical overtemperature interrupt Overtemperature/undertemperature interrupt I2C-compatible interface 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 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 temperature 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 I2C addresses. The CT pin is an open- 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. FUNCTIONAL BLOCK DIAGRAM TEMPERATURE VALUE REGISTER CONFIGURATION REGISTER THYST REGISTER TLOW REGISTER THIGH REGISTER TCRIT REGISTER POINTER REGISTER INTERNAL REFERENCE 8 7 TEMPERATURE SENSOR THIGH TCRIT TLOW INTERNAL OSCILLATOR FILTER LOGIC Σ-Δ MODULATOR VDD GND 6 5 CT INT 3 4 A0 A1 1 2 SCL SDA I2C INTERFACE ADT7410 Figure 1. |
Podobny numer części - ADT7410_17 |
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Podobny opis - ADT7410_17 |
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