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ADT7302 データシート(PDF) 1 Page - Analog Devices |
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ADT7302 データシート(HTML) 1 Page - Analog Devices |
1 / 16 page ±2°C Accurate, Micropower Digital Temperature Sensor ADT7302 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. FEATURES 13-bit temperature-to-digital converter −40°C to +125°C operating temperature range ±2°C accuracy 0.03125°C temperature resolution Shutdown current of 1 μA Power dissipation of 0.631 mW at VDD = 3.3 V SPI- and DSP-compatible serial interface Shutdown mode Space-saving SOT-23 and MSOP packages Compatible with AD7814 APPLICATIONS Medical equipment Automotive: Environmental controls Oil temperature Hydraulic systems Cell phones Hard disk drives Personal computers Electronic test equipment Office equipment Domestic appliances Process control FUNCTIONAL BLOCK DIAGRAM SERIAL BUS INTERFACE ADT7302 VDD SCLK DIN DOUT GND 13-BIT ANALOG/DIGITAL CONVERTER TEMPERATURE VALUE REGISTER BAND GAP TEMPERATURE SENSOR CS Figure 1. GENERAL DESCRIPTION The ADT7302 is a complete temperature monitoring system available in SOT-23 and MSOP packages. It contains a band gap temperature sensor and a 13-bit ADC to monitor and digitize the temperature reading to a resolution of 0.03125°C. The ADT7302 has a flexible serial interface that allows easy interfacing to most microcontrollers. The interface is compatible with SPI®, QSPI™, and MICROWIRE™ protocols as well as DSPs. The part features a standby mode that is controlled via the serial interface. The ADT7302’s wide supply voltage range, low supply current, and SPI-compatible interface make it ideal for a variety of applications, including PCs, office equipment, automotive, and domestic appliances. PRODUCT HIGHLIGHTS 1. On-chip temperature sensor that allows an accurate measurement of the ambient temperature. The measurable temperature range is −40°C to +125°C. 2. Supply voltage of 2.7 V to 5.25 V. 3. Space-saving 6-lead SOT-23 and 8-lead MSOP packages. 4. Maximum temperature accuracy of ±2°C. 5. 13-bit temperature reading to 0.03125°C resolution. 6. Shutdown mode that reduces the power consumption to 4.88 μW with VDD = 3.3 V at 1 SPS. 7. Compatible with AD7814. |
同様の部品番号 - ADT7302_05 |
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同様の説明 - ADT7302_05 |
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