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REV. E
a
AD7814
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. 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.
10-Bit Digital Temperature Sensor
in 6-Lead SOT-23
FUNCTIONAL BLOCK DIAGRAM
SERIAL
BUS
INTERFACE
AD7814
V
DD
CS
SCLK
DIN
DOUT
GND
TEMPERATURE
VALUE
REGISTER
10-BIT
ANALOG/DIGITAL
CONVERTER
BAND GAP
TEMPERATURE
SENSOR
FEATURES
10-Bit Temperature-to-Digital Converter
55C to +125C Operating Temperature Range
2C Accuracy
SPI- and DSP-Compatible Serial Interface
Shutdown Mode
Space-Saving SOT-23 Package
APPLICATIONS
Hard Disk Drives
Personal Computers
Electronic Test Equipment
Office Equipment
Domestic Appliances
Process Control
GENERAL DESCRIPTION
The AD7814 is a complete temperature monitoring system in a
SOT-23 package or 8-lead MSOP package. It contains a band
gap temperature sensor and 10-bit ADC to monitor and digitize
the temperature reading to a resolution of 0.25癈.
The AD7814 has a flexible serial interface that allows easy inter-
facing to most microcontrollers. The interface is compatible
with SPI
?/DIV>
, QSPI", and MICROWIRE" protocol, and is also
compatible with DSPs. The part features a standby mode that is
controlled via the serial interface.
The AD7814s wide supply voltage range, low supply current,
and SPI-compatible interface make it ideal for a variety of
applications, including personal computers, office equipment,
and domestic appliances.
Purchase of licensed I
2
C components of Analog Devices or one of its sublicensed
Associated Companies conveys a license for the purchaser under the Philips I
2
C
Patent Rights to use these components in an I
2
C system, provided that the system
conforms to the I
2
C Standard Specification as defined by Philips.
PRODUCT HIGHLIGHTS
1. The AD7814 has an on-chip temperature sensor that allows
an accurate measurement of the ambient temperature. The
measurable temperature range is 55癈 to +125癈, with a
?癈 temperature accuracy.
2. Supply voltage of 2.7 V to 5.5 V
3. Space-saving 6-lead SOT-23 package and 8-lead MSOP
package
4. 10-bit temperature reading to 0.25癈 resolution
5. Standby mode that reduces the current consumption to 1 礎
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相关代理商/技术参数
AD7814ARTZ-REEL7 功能描述:IC TEMP SNSR 10BIT DGTL SOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:3,000 系列:- 功能:温度开关 传感器类型:内部 感应温度:85°C 分界点 精确度:±6°C（最小值） 拓扑:ADC（三角积分型），比较器，寄存器库 输出类型:开路漏极 输出警报:是 输出风扇:是 电源电压:2.7 V ~ 5.5 V 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:ADT6501SRJZP085RL7-ND
AD7814ARTZ-REEL7 制造商:Analog Devices 功能描述:IC TEMP SENSOR 10BIT 2C 6-SOT-23
AD7815ART-REEL7 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel
AD7816 制造商:AD 制造商全称:Analog Devices 功能描述:Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor
AD7816-7818 制造商:AD 制造商全称:Analog Devices 功能描述:Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor
AD7816ACHIPS 制造商:AD 制造商全称:Analog Devices 功能描述:Single- and 4-Channel, 9 us, 10-Bit ADCs with On-Chip Temperature Sensor
AD7816AR 制造商:Analog Devices 功能描述:Analog Temperature Sensors 8-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:TEMP SENSOR I.C. - Bulk 制造商:Analog Devices 功能描述:ADC TEMP SENSOR SMD 7816 SOIC8
AD7816ARM 制造商:Analog Devices 功能描述:Analog Temperature Sensors 8-Pin MSOP 制造商:Rochester Electronics LLC 功能描述:TEMPERATURE SENSOR: 10-BIT ADC, TEMPERATURE MONITORING ONLY - Bulk