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AD7782BRUZ-REEL PDF预览

AD7782BRUZ-REEL

更新时间： 2024-11-11 21:01:27
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管转换器
页数 文件大小 规格书
13页 638K
描述
2-Channel, Read-Only, Pin-Configured, 24-bit Sigma-Delta ADC

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AD7782BRUZ-REEL 数据手册

 浏览型号AD7782BRUZ-REEL的Datasheet PDF文件第2页浏览型号AD7782BRUZ-REEL的Datasheet PDF文件第3页浏览型号AD7782BRUZ-REEL的Datasheet PDF文件第4页浏览型号AD7782BRUZ-REEL的Datasheet PDF文件第5页浏览型号AD7782BRUZ-REEL的Datasheet PDF文件第6页浏览型号AD7782BRUZ-REEL的Datasheet PDF文件第7页 
Read Only, Pin Configured  
a
24-Bit ⌺-⌬ ADC  
AD7782  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
2-Channel, 24-Bit ⌺-⌬ ADC  
Pin Configurable (No Programmable Registers)  
Pin Selectable Input Channels  
V
GND  
REFIN(+) REFIN(–) XTAL1 XTAL2  
DD  
Pin Programmable Input Ranges (؎2.56 V or ؎160 mV)  
Fixed 19.79 Hz Update Rate  
Simultaneous 50 Hz and 60 Hz Rejection  
24-Bit No Missing Codes  
OSCILLATOR  
AND  
AD7782  
PLL  
AIN1(+)  
AIN1(–)  
AIN2(+)  
AIN2(–)  
DOUT/RDY  
SCLK  
18.5-Bit p-p Resolution (؎2.56 V Range)  
16.5-Bit p-p Resolution (؎160 mV Range)  
SERIAL  
INTERFACE  
24-BIT ⌺-⌬  
ADC  
MUX  
BUF  
PGA  
AND  
CONTROL  
LOGIC  
MODE  
INTERFACE  
Master or Slave Mode of Operation  
Slave Mode  
CS  
3-Wire Serial  
SPI™, QSPI™, MICROWIRE™, and DSP-Compatible  
Schmitt Trigger on SCLK  
CH1/CH2  
RANGE  
POWER  
Specified for Single 3 V and 5 V Operation  
Normal: 1.3 mA @ 3 V  
Power-Down: 9 ␮A  
BASIC CONNECTION DIAGRAM  
POWER SUPPLY  
V
ON-CHIP FUNCTIONS  
DD  
Rail-Rail Input Buffer and PGA  
AD7782  
AIN1(+)  
AIN1(–)  
ANALOG  
INPUT  
CS  
APPLICATIONS  
DIGITAL  
DOUT/RDY  
SCLK  
Sensor Measurement  
Industrial Process Control  
Temperature Measurement  
Pressure Measurements  
Weigh Scales  
INTERFACE  
AIN2(+)  
AIN2(–)  
ANALOG  
INPUT  
XTAL1  
32.768kHz  
CRYSTAL  
REFIN(+)  
REFIN(–)  
REFERENCE  
INPUT  
XTAL2  
GND  
Portable Instrumentation  
GENERAL DESCRIPTION  
The device operates from a 32.768 kHz crystal with an on-chip PLL  
generating the required internal operating frequency. The output  
data rate from the part is fixed via the master clock at 19.79 Hz and  
provides simultaneous 50 Hz and 60 Hz rejection at this update  
rate. Eighteen-bit p-p resolution can be obtained at this update rate.  
The AD7782 is a complete analog front end for low-frequency  
measurement applications. The 24-bit sigma-delta ADC contains  
two fully differential analog input channels that can be config-  
ured with a gain of 1 or 16 allowing full-scale input signal ranges  
of 2.56 V or 160 mV from a +2.5 V differential reference  
input.  
The part operates from a single 3 V or 5 V supply. When operating  
from 3 V supplies, the power dissipation for the part is 3.9 mW.  
The AD7782 is available in a 16-lead TSSOP package.  
The AD7782 has an extremely simple, read-only digital interface  
which can be operated in master mode or slave mode. There are  
no on-chip registers to be programmed. The input signal range  
and input channel selection are configured using two external pins.  
Another part in the AD778x family is the AD7783. It is similar  
to the AD7782 except it has two integrated current sources and  
only one differential input channel.  
SPI and QSPI are trademarks of Motorola Inc.  
MICROWIRE is a trademark of National Semiconductor Corporation.  
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. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
2012  
© Analog Devices, Inc.,  
1234567...13

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AD7782BRUZ-REEL 替代型号

型号 品牌 替代类型 描述 数据表
AD7782BRUZ ADI

完全替代

 2-Channel, Read-Only, Pin-Configured, 24-bit Sigma-Delta ADC
AD7782BRUZ-REEL7 ADI

完全替代

 2-Channel, Read-Only, Pin-Configured, 24-bit Sigma-Delta ADC
AD7782BRU ADI

完全替代

 Read Only, Pin Configured 24-Bit ADC

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AD7783BRU ROCHESTER

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 		1-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16, MS-153-AB, TSSOP-16
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