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ADT7411ARQ-REEL7 Datasheet(PDF) 1 Page - Analog Devices |
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ADT7411ARQ-REEL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 36 page SPI®/I2C® Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC ADT7411 * Rev. A 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: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES 10-bit temperature-to-digital converter 10-bit 8-channel ADC DC input bandwidth Input range: 0 V to 2.25 V, and 0 V to VDD Temperature range: –40°C to +120°C Temperature sensor accuracy of ±0.5°C Supply range: 2.7 V to 5.5 V Power-down current 1 µA Internal 2.25 VREF option Double-buffered input logic I2C, SPI, QSPI™, MICROWIRE™, and DSP compatible 4-wire serial interface SMBus packet error checking (PEC) compatible 16-lead QSOP package APPLICATIONS Portable battery-powered instruments Personal computers Smart battery chargers Telecommunications systems electronic test equipment Domestic appliances Process control PIN CONFIGURATION ADT7411 TOP VIEW (Not to Scale) AIN6 1 AIN7 16 AIN5 2 AIN8 15 NC 3 AIN4 14 CS 4 SCL/SCLK 13 GND 5 SDA/DIN 12 VDD 6 DOUT/ADD 11 D+/AIN1 7 INT/INT 10 D–/AIN2 8 AIN3 9 NC = NO CONNECT Figure 1. GENERAL DESCRIPTION The ADT7411 combines a 10-bit temperature-to-digital con- verter and a 10-bit 8-channel ADC in a 16-lead QSOP package. This includes a band gap temperature sensor and a 10-bit ADC to monitor and digitize the temperature reading to a resolution of 0.25°C. The ADT7411 operates from a single 2.7 V to 5.5 V supply. The input voltage on the ADC channels has a range of 0 V to 2.25 V and the input bandwidth is dc. The reference for the ADC channels is derived internally. The ADT7411 provides two serial interface options: a 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, and a 2-wire SMBus/I2C interface. It features a standby mode that is controlled via the serial interface. The ADT7411’s wide supply voltage range, low supply current, and SPI/I2C compatible interface make it ideal for a variety of applications, including personal computers, office equipment, and domestic appliances. *Protected by the following U.S. Patent Numbers: 6,169,442; 5,867,012; 5,764174. Other patents pending. |
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