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ADT7317 PDF预览

ADT7317

更新时间: 2024-01-21 21:25:25
品牌 Logo 应用领域
亚德诺 - ADI 传感器温度传感器
页数 文件大小 规格书
32页 334K
描述
SPI/I2C Compatible, 10-Bit Digital Temperature Sensor and Quad Voltage Output 12/10/8-Bit DAC

ADT7317 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SSOP16,.25Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.79最大精度(摄氏度):3 Cel
主体宽度:3.9 mm主体高度:1.55 mm
主体长度或直径:4.9 mm外壳:PLASTIC
JESD-609代码:e0安装特点:SURFACE MOUNT
位数:10端子数量:16
最大工作电流:0.001 mA最高工作温度:125 °C
最低工作温度:-40 °C输出接口类型:I2C INTERFACE
封装主体材料:PLASTIC/EPOXY封装等效代码:SSOP16,.25
封装形状/形式:RECTANGULAR电源:3/5 V
传感器/换能器类型:TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL子类别:Other Sensors
最大供电电压:5.5 V最小供电电压:2.7 V
表面贴装:YES技术:CMOS
端子面层:Tin/Lead (Sn/Pb)端接类型:SOLDER
Base Number Matches:1

ADT7317 数据手册

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PRELIMINARY TECHNICAL DATA  
SPI/I2C Compatible, 10-Bit Digital Temperature  
a
Preliminary Technical Data  
Sensor and Quad Voltage Output 12/10/8-Bit DAC  
ADT7316/7317/7318  
FEATURES  
GENERAL DESCRIPTION  
ADT7316 - Four 12-Bit DACs  
ADT7317 - Four 10-Bit DACs  
ADT7318 - Four 8-Bit DACs  
Buffered Voltage Output  
The ADT7316/7317/7318 combines a 10-Bit Tempera-  
ture-to-Digital Converter and a quad 12/10/8-Bit DAC  
respectively, in a 16-Lead QSOP package. This includes a  
bandgap temperature sensor and a 10-bit ADC to monitor  
and digitize the temperature reading to a resolution of  
0.25oC. The ADT7316/17/18 operates from a single  
+2.7V to +5.5V supply. The output voltage of the DAC  
ranges from 0 V to 2VREF , with an output voltage settling  
time of typ 7 msec. The ADT7316/17/18 provides two  
serial interface options, a four-wire serial interface which  
is compatible with SPITM, QSPITM, MICROWIRETM and  
DSP interface standards; and a two-wire I2C interface. It  
features a standby mode that is controlled via the serial  
interface.  
Guaranteed Monotonic By Design Over All Codes  
10-Bit Temperature to Digital Converter  
Temperature range:  
-40oC to +125oC  
Temperature Sensor Accuracy of 0.5oC  
Supply Range : + 2.7 V to + 5.5 V  
DAC Output Range: 0 - 2VREF  
Power-Down Current 1µA  
Internal 2.25 VRef Option  
Double-BufferedInputLogic  
Buffered / Unbuffered Reference Input Option  
Power-on Reset to Zero Volts  
Simultaneous Update of Outputs (LDAC Function)  
On-Chip Rail-to-Rail Output Buffer Amplifier  
The reference for the four DACs is derived either inter-  
nally or from two reference pins (one per DAC pair) .The  
outputs of all DACs may be updated simultaneously using  
the software LDAC function or external LDAC pin. The  
ADT7316/7317/7318 incorporates a power-on-reset cir-  
cuit, which ensures that the DAC output powers-up to  
zero volts and it remains there until a valid write takes  
place.  
I2C , SPITM, QSPITM, MICROWIRETM and DSP-Compatible 4-  
wire Serial Interface  
16-Lead QSOP Package  
APPLICATIONS  
Portable Battery Powered Instruments  
Personal Computers  
TelecommunicationsSystems  
Electronic Test Equipment  
Domestic Appliances  
The ADT7316/7317/7318’s wide supply voltage range,  
low supply current and SPI/I2C-compatible interface,  
make it ideal for a variety of applications, including per-  
sonal computers, office equipment and domestic appli-  
ances.  
Process Control  
ADDRESS POINTER  
REGISTER  
ON-CHIP  
TEMPERATURE  
SENSOR  
INTERNAL TEMPERATURE  
VALUE REGISTER  
STRING  
DAC A  
DAC A  
REGISTERS  
VOUT-A  
THIGH LIMIT  
2
REGISTERS  
TLOW LIMIT  
VDD  
D+  
D-  
7
8
A-TO-D  
CONVERTER  
REGISTERS  
ANALOG  
MUX  
LIMIT  
COMPARATOR  
DA C B  
REGISTERS  
STRING  
DA C B  
VALUE  
REGISTER  
VOUT-B  
1
VDD Lim it  
REGISTERS  
CONTROL CONFIG. 1  
REGISTER  
DAC C  
REGISTERS  
VDD  
STRING  
DA C C  
EXTERNAL TEMPERATURE  
VALUE REGISTER  
VOUT-C  
16  
SENSOR  
CONTROL CONFIG. 2  
REGISTER  
STRING  
DA C D  
DAC D  
REGISTERS  
VOUT-D  
CONTROL CONFIG. 3  
REGISTER  
15  
10  
DAC CONFIGURATION  
REGISTER  
GAIN  
SELECT DOWN  
LOGIC  
POWER  
ADT7316/17/18  
LDAC CONFIGURATION  
REGISTER  
LOGIC  
STATUS  
REGISTERS  
INTERRUPT MASK  
REGISTERS  
INTERRUPT  
SMB us/SPI INTERFACE  
INTERNAL TEMP  
SENSOR  
14  
VREF-CD  
6
VDD  
5
GND  
3
9
4
13  
12  
11  
DOUT/ADD  
VREF-A B  
LDAC  
CS SCL/SCLK SDA/DIN  
FUNCTIONAL BLOCK DIAGRAM  
REV. PrN 02/02  
I2C is a registered trademark of Philips Corporation  
* Protected by U.S. Patent No. 5,969,657; other patents pending.  
SPI and QSPI are trademarks of Motorola, INC.  
MICROWIREisatrademarkofNationalSemiconductorCorporation.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
Analog Devices, Inc., 2002  

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