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ADS1211

更新时间： 2024-09-17 02:58:27
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
50页 1568K
描述
24-Bit ANALOG-TO-DIGITAL CONVERTER

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ADS1211 数据手册

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ADS1210  
ADS1211  
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ADS1211  
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SBAS034B – JANUARY 1996 – REVISED SEPTEMBER 2005  
24-Bit ANALOG-TO-DIGITAL CONVERTER  
DESCRIPTION  
FEATURES  
● DELTA-SIGMA A/D CONVERTER  
The ADS1210 and ADS1211 are precision, wide dynamic  
range, delta-sigma Analog-to-Digital (A/D) converters with  
24-bit resolution operating from a single +5V supply. The  
differential inputs are ideal for direct connection to transduc-  
ers or low-level voltage signals. The delta-sigma architec-  
ture is used for wide dynamic range and to ensure 22 bits  
of no-missing-code performance. An effective resolution of  
23 bits is achieved through the use of a very low-noise input  
amplifier at conversion rates up to 10Hz. Effective resolu-  
tions of 20 bits can be maintained up to a sample rate of  
1kHz through the use of the unique Turbo modulator mode  
of operation. The dynamic range of the converters is further  
increased by providing a low-noise programmable gain  
amplifier with a gain range of 1 to 16 in binary steps.  
● 23 BITS EFFECTIVE RESOLUTION AT 10Hz  
AND 20 BITS AT 1000Hz  
● DIFFERENTIAL INPUTS  
● PROGRAMMABLE GAIN AMPLIFIER  
● FLEXIBLE SPI™-COMPATIBLE SSI  
INTERFACE WITH 2-WIRE MODE  
● PROGRAMMABLE CUT-OFF FREQUENCY  
UP TO 15.6kHz  
● INTERNAL/EXTERNAL REFERENCE  
● ON-CHIP SELF-CALIBRATION  
● ADS1211 INCLUDES 4-CHANNEL MUX  
The ADS1210 and ADS1211 are designed for high resolution  
measurement applications in smart transmitters, industrial  
process control, weigh scales, chromatography, and portable  
instrumentation. Both converters include a flexible synchro-  
nous serial interface that is SPI-compatible and also offers a  
two-wire control mode for low cost isolation.  
APPLICATIONS  
● INDUSTRIAL PROCESS CONTROL  
● INSTRUMENTATION  
● BLOOD ANALYSIS  
● SMART TRANSMITTERS  
● PORTABLE INSTRUMENTS  
● WEIGH SCALES  
The ADS1210 is a single-channel converter and is offered in  
both 18-pin DIP and 18-lead SOIC packages. The ADS1211  
includes a 4-channel input multiplexer and is available in 24-  
pin DIP, 24-lead SOIC, and 28-lead SSOP packages.  
● PRESSURE TRANSDUCERS  
AGND AVDD REFOUT  
REFIN  
VBIAS  
XIN  
XOUT  
+2.5V  
Reference  
+3.3V Bias  
Generator  
Clock Generator  
DGND  
DVDD  
AIN1P  
A
IN1N  
IN2P  
IN2N  
IN3P  
IN3N  
AIN4P  
IN4N  
Micro Controller  
A
AIN  
P
Second-Order  
∆∑  
Modulator  
A
Instruction Register  
Command Register  
Data Output Register  
Offset Register  
Third-Order  
Digital Filter  
PGA  
A
MUX  
AINN  
A
Full-Scale Register  
A
SCLK  
SDIO  
Modulator Control  
Serial Interface  
SDOUT  
ADS1211 Only  
ADS1210/11  
DSYNC  
CS  
MODE DRDY  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
Copyright © 1996-2005, Texas Instruments Incorporated  
www.ti.com  
1234567...50

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ADS1211 替代型号

型号 品牌 替代类型 描述 数据表
ADS124S08 TI

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