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ADS1234IPWT PDF预览

ADS1234IPWT

更新时间： 2024-11-26 20:55:51
品牌 Logo 应用领域
德州仪器 - TI 光电二极管转换器
页数 文件大小 规格书
10页 162K
描述
IC,A/D CONVERTER,SINGLE,24-BIT,TSSOP,28PIN

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ADS1234IPWT 技术参数

生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP, TSSOP28,.25针数：28
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.84转换器类型：A/D CONVERTER
JESD-30 代码：R-PDSO-G28最大线性误差 (EL)：0.0015%
位数：24功能数量：1
端子数量：28最高工作温度：105 °C
最低工作温度：-40 °C输出位码：OFFSET BINARY
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP28,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH电源：5 V
认证状态：Not Qualified子类别：Analog to Digital Converters
标称供电电压：5 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
Base Number Matches：1

ADS1234IPWT 数据手册

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ADS1232  
ADS1234  
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SBAS350–JUNE 2005  
Ultra Low-Noise, 24-Bit Analog-to-Digital Converter  
FEATURES  
DESCRIPTION  
•
Up to 23.5 Effective Bits  
The ADS1232 and ADS1234 are precision  
analog-to-digital (A/D) converters featuring true 23.5  
effective-bit performance and exceptional ease of  
use. Selectable gains of 1, 2, 64, or 128 allow  
full-scale differential input ranges of ±2.5V to  
±19.5mV with a +5V reference. While the ADS1232  
offers a two-channel differential input and a built-in  
•
RMS Noise:  
– 17nV at 10Hz  
– 44nV at 80Hz  
•
•
•
On-Board Low Noise Gain-Amp  
19.2-Bit Noise-Free Resolution at Gain = 64  
Simultaneous 50Hz and 60Hz Rejection:  
– Internal Clock: 110 dB  
temperature sensor, the ADS1234 features  
a
four-channel differential input multiplexer. A very  
low-noise Gain-Amp features low differential input  
current  
to  
minimize  
errors  
when  
using  
– External Clock: 130 dB  
high-impedance transducers. An on-board oscillator  
is provided for excellent 50Hz and 60Hz rejection  
without an external clock source. The devices also  
feature a low current driver to accommodate an  
external crystal; they also accept external clock  
sources for all applications.  
•
•
•
•
±1% Low-Drift On-Board Oscillator  
Selectable Gains of 1, 2, 64, and 128  
Selectable 10/80SPS Conversion Rates  
2-Channel Differential Input with Built-In Temp  
sensor (ADS1232)  
All of the features of the ADS1232/ADS1234 are  
hard-wire selected, without software programming.  
Data is accessed over a simple serial interface  
compatible with popular microcontrollers such as the  
MSP430. The ADS1232 is available in the 24-pin  
TSSOP package, and the ADS1234 is available in  
the 28-pin TSSOP.  
•
•
•
•
•
4-Channel Differential Input (ADS1234)  
External Reference up to AVDD  
Simple Serial Digital Interface  
Supply Range: 2.7V to 5.3V  
–40°C to +105°C Temperature Range  
APPLICATIONS  
•
•
•
•
Weigh Scales  
Strain Gauges  
Bridge Sensors  
Industrial Process Control  
CAP  
REFP REFN  
DVDD  
AVDD  
GAIN [1:0]  
PDWN  
AINP1  
AINN1  
A = 1, 2, 64,  
128  
AINP2  
AINN2  
DRDY/DOUT  
SCLK  
Input  
Mux  
PGA  
∆Σ  
ADC  
AINP3  
AINN3  
AINP4  
AINN4  
Internal Oscillator  
External Oscillator  
SPEED  
A1/TEMP(1) A0  
DGND  
AGND CAP XTAL1/CLKIN XTAL2  
ADS1234 Only  
NOTE: (1) A1 for ADS1234, TEMP for ADS1232.  
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.  
PRODUCT PREVIEW information concerns products in the forma-  
tive or design phase of development. Characteristic data and other  
specifications are design goals. Texas Instruments reserves the  
right to change or discontinue these products without notice.  
Copyright © 2005, Texas Instruments Incorporated  
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