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ADS1281IPWRG4 PDF预览

ADS1281IPWRG4

更新时间： 2024-11-25 04:31:39
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德州仪器 - TI 转换器模数转换器光电二极管
页数 文件大小 规格书
46页 768K
描述
High-Resolution Analog-to-Digital Converter

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ADS1281IPWRG4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：GREEN, PLASTIC, TSSOP-24针数：24
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.35
Is Samacsys：N最大模拟输入电压：1.25 V
最小模拟输入电压：-1.25 V转换器类型：ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码：R-PDSO-G24JESD-609代码：e4
长度：7.8 mm最大线性误差 (EL)：0.0005%
湿度敏感等级：1模拟输入通道数量：1
位数：24功能数量：1
端子数量：24最高工作温度：85 °C
最低工作温度：-40 °C输出位码：2'S COMPLEMENT BINARY
输出格式：SERIAL封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP24,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：+-2.5,3.3 V
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Analog to Digital Converters标称供电电压：3.3 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

ADS1281IPWRG4 数据手册

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SBAS378A–SEPTEMBER 2007–REVISED NOVEMBER 2007  
High-Resolution Analog-to-Digital Converter  
1
FEATURES  
DESCRIPTION  
2
•
High Resolution:  
The ADS1281 is an extremely high-performance,  
single-chip analog-to-digital converter (ADC)  
designed for the demanding needs of energy  
exploration and seismic monitoring environments.  
The single-chip design promotes board area savings  
for improvements in high-density applications.  
–
–
130dB SNR (250SPS)  
127dB SNR (500SPS)  
•
High Accuracy:  
–
–
THD: –122dB (typ), –115dB (max)  
INL: 0.6ppm  
The converter uses a fourth-order, inherently stable,  
delta-sigma (ΔΣ) modulator that provides outstanding  
noise and linearity performance. The modulator is  
used either in conjunction with the on-chip digital  
filter, or can be bypassed for use with  
post-processing filters.  
•
•
Inherently Stable Modulator with Fast  
Responding Over-Range Detection  
Flexible Digital Filter:  
–
–
–
–
Sinc + FIR + IIR (Selectable)  
Linear or Minimum Phase Response  
Programmable High-Pass Filter  
Selectable FIR Data Rates:  
The digital filter consists of sinc and finite impulse  
response (FIR) low-pass stages followed by an  
infinite impulse response (IIR) high-pass filter (HPF)  
stage. Selectable decimation provides data rates from  
250 to 4000 samples per second (SPS). The FIR  
low-pass stage provides both linear and minimum  
phase response. The HPF features an adjustable  
corner frequency. On-chip gain and offset scaling  
registers support system calibration.  
–
250SPS to 4kSPS  
•
•
Filter Bypass Option  
Low Power Consumption:  
–
–
Operating: 12mW  
Shutdown: 10µW  
The synchronization input (SYNC) can be used to  
synchronize the conversions of multiple ADS1281s.  
The SYNC input also accepts a clock input for  
continuous alignment of conversions from an external  
source.  
•
Calibration Engine for Offset and  
Gain Correction  
•
•
Synchronization Input  
Analog Supply:  
–
Unipolar (+5V) or Bipolar (±2.5V)  
Together, the modulator and filter dissipate only  
12mW. The ADS1281 is available in a compact  
TSSOP-24 package and is fully specified from –40°C  
to +85°C, with a maximum operating range to  
+125°C.  
•
Digital Supply: 1.8V to 3.3V  
APPLICATIONS  
•
•
•
Energy Exploration  
Seismic Monitoring  
High-Accuracy Instrumentation  
AVDD VREFN VREFP  
DVDD  
CLK  
ADS1281  
SCLK  
DOUT  
AINP  
AINN  
4th-Order  
DS  
Programmable  
Digital Filter  
Serial  
Calibration  
Interface  
DIN  
Modulator  
DRDY  
Over-Range  
SYNC  
RESET  
PWDN  
Control  
Modulator Output  
3
DGND  
AVSS  
1
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.  
2
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 the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007, Texas Instruments Incorporated  
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ADS1281IPWRG4 替代型号

型号 品牌 替代类型 描述 数据表
ADS1281IPWR TI

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ADS1281IPWG4 TI

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 High-Resolution Analog-to-Digital Converter
ADS1281IPW TI

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 High-Resolution Analog-to-Digital Converter

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