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AD7810YRM-REEL

更新时间: 2024-11-20 15:27:39
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
11页 151K
描述
IC 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8, MICRO, SOIC-8, Analog to Digital Converter

AD7810YRM-REEL 数据手册

 浏览型号AD7810YRM-REEL的Datasheet PDF文件第2页浏览型号AD7810YRM-REEL的Datasheet PDF文件第3页浏览型号AD7810YRM-REEL的Datasheet PDF文件第4页浏览型号AD7810YRM-REEL的Datasheet PDF文件第5页浏览型号AD7810YRM-REEL的Datasheet PDF文件第6页浏览型号AD7810YRM-REEL的Datasheet PDF文件第7页 
2.7 V to 5.5 V, 2.3 s, 10-Bit  
ADC in 8-Lead microSOIC/DIP  
a
AD7810  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
10-Bit ADC with 2.3 s Conversion Time  
Small Footprint 8-Lead microSOIC Package  
Specified Over a –40؇C to +105؇C Temperature Range  
Inherent Track-and-Hold Functionality  
Operating Supply Range: 2.7 V to 5.5 V  
Specifications at 2.7 V to 5.5 V  
Microcontroller-Compatible Serial Interface  
Optional Automatic Power-Down  
at End of Conversion  
V
V
AGND  
DD  
REF  
AD7810  
CHARGE  
REDISTRIBUTION  
DAC  
D
OUT  
SERIAL  
PORT  
SCLK  
CLOCK  
OSC  
V
V
+
IN  
CONTROL  
LOGIC  
COMP  
Low Power Operation  
IN  
3
/
V
DD  
270 W at 10 kSPS Throughput Rate  
2.7 mW at 100 kSPS Throughput Rate  
Analog Input Range: 0 V to VREF  
Reference Input Range: 0 V to VDD  
CONVST  
APPLICATIONS  
Low Power, Hand-Held Portable Applications that  
Require Analog-to-Digital Conversion with 10-Bit  
Accuracy; e.g., Battery Powered Test Equipment,  
Battery-Powered Communications Systems  
GENERAL DESCRIPTION  
PRODUCT HIGHLIGHTS  
1. Complete, 10-Bit ADC in 8-Lead Package  
The AD7810 is a high speed, low power, 10-bit A/D con-  
verter that operates from a single 2.7 V to 5.5 V supply. The  
part contains a 2.3 µs successive approximation A/D converter,  
with inherent track/hold functionality, a pseudo differential  
input and a high speed serial interface that interfaces to most  
microcontrollers. The AD7810 is fully specified over a tem-  
perature range of –40°C to +105°C.  
The AD7810 is a 10-bit 2.3 µs ADC with inherent track/hold  
functionality and a high speed serial interface—all in an  
8-lead microSOIC package. VREF may be connected to VDD  
to eliminate the need for an external reference. The result is  
a high speed, low power, space saving ADC solution.  
2. Low Power, Single Supply Operation  
By using a technique that samples the state of the CONVST  
(convert start) signal at the end of a conversion, the AD7810  
may be used in an automatic power-down mode. When used in  
this mode, the AD7810 automatically powers down at the end  
of a conversion and “wakes up” at the start of a new conversion.  
This feature significantly reduces the power consumption of the  
part at lower throughput rates. The AD7810 can also operate in  
a high speed mode where the part is not powered down between  
conversions. In this high speed mode of operation, the conver-  
sion time of the AD7810 is 2.3 µs. The maximum throughput  
rate is dependent on the speed of the serial interface of the  
microcontroller.  
The AD7810 operates from a single 2.7 V to 5.5 V supply  
and typically consumes only 9 mW of power while convert-  
ing. The power dissipation can be significantly reduced at  
lower throughput rates by using the automatic power-down  
mode, e.g., at a throughput rate of 10 kSPS the power  
consumption is only 270 µW.  
3. Automatic Power-Down  
The automatic power-down mode, whereby the AD7810  
powers down at the end of a conversion and “wakes up”  
before the next conversion, means the AD7810 is ideal for  
battery powered applications. See Power vs. Throughput  
Rate section.  
The part is available in a small 8-lead, 0.3" wide, plastic dual-  
in-line package (mini-DIP); in an 8-lead, small outline IC  
(SOIC); and in an 8-lead microSOIC package.  
4. Serial Interface  
An easy to use, fast serial interface allows connection to most  
popular microprocessors with no external circuitry.  
REV. B  
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.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 2000  

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