ADS4129 14 位 250MSPS 缓冲低功耗 ADC

The ADS41B49/29 are a family of 14-bit/12-bit analog-to-digital converters (ADCs) with sampling rates up to 250MSPS and integrated analog input buffers. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power. The analog input pins have buffers, with benefits of constant performance and input impedance across a wide frequency range. The devices are well-suited for multi-carrier, wide bandwidth communications applications.

The ADS41B49/29 have features such as digital gain and offset correction. The gain option can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. The integrated dc offset correction loop can be used to estimate and cancel the ADC offset.


ADS4126 ADS4129 ADS4146 ADS4149 ADS41B29 ADS41B49
Resolution(Bits) 12 12 14 14 12 14
Sample Rate (max) 160MSPS 250MSPS 160MSPS 250MSPS 250MSPS 250MSPS
Architecture Pipeline Pipeline Pipeline Pipeline Pipeline Pipeline
Power Consumption(Typ)(mW) 200 265 200 265 350 350
SINAD(dB) 70 69.65 72.5 72.14 68.45 70.96
SNR(dB) 70.5 70.4 73 72.9 69.2 71.7
SFDR(dB) 83 80 83 80 80 80
No Missing Codes(Bits) 12 12 14 14 12 14
ENOB(Bits) 11.33 11.27 11.75 11.7 11.07 11.5
No. of Supplies 1 1 1 1 2 2
Analog Voltage AV/DD(Min)(V) 1.7 1.7 1.7 1.7 1.7 1.7
Analog Voltage AV/DD(Max)(V) 1.9 1.9 1.9 1.9 1.9 1.9
Logic Voltage DV/DD(Min)(V) 1.7 1.7 1.7 1.7 1.7 1.7
Logic Voltage DV/DD(Max)(V) 1.9 1.9 1.9 1.9 1.9 1.9
Input Configuration Range 2V (p-p) 2V (p-p) 2V (p-p) 2V (p-p) 2V (p-p) 2V (p-p)
Reference Mode Int Int Int Int Int Int
Rating Catalog Catalog Catalog Catalog Catalog Catalog
Pin/Package 48VQFN 48VQFN 48VQFN 48VQFN 48VQFN 48VQFN
# Input Channels 1 1 1 1 1 1
Operating Temp Range(Celsius) -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 
ADS4129 特性
ADS4129 芯片订购指南
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器件 状态 温度(oC) 封装 | 引脚
ADS4129IRGZ25 PREVIEW -40 to 85 VQFN (RGZ) | 48
ADS4129IRGZR PREVIEW -40 to 85 VQFN (RGZ) | 48
ADS4129IRGZT PREVIEW -40 to 85 VQFN (RGZ) | 48
ADS4129 应用技术支持与电子电路设计开发资源下载
  1. ADS4129 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls
  3. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  4. 所选封装材料的热学和电学性质 (PDF 645 KB)
  5. 高速数据转换 (PDF 1967 KB)
  6. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  7. A Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF 461 KB)
  8. A Spreadsheet for Calculating the Frequency Response of the ADS1250-54
  9. Understanding the ADS1251, ADS1253, and ADS1254 Input Circuitry (PDF 39 KB)
  10. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  11. Principles of Data Acquisition and Conversion (PDF 50 KB)
  12. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  13. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  14. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  15. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
ADS4129 工具与软件
名称 型号 公司 工具/软件类型
ADS4149 评估模块 ADS4149EVM Texas Instruments 开发电路板/EVM
ADC 谐波计算器 ADC-HARMONIC-CALC Texas Instruments 计算实用程序
用于模数转换器的抗混淆计算工具 ANTIALIASINGCALC Texas Instruments 计算实用程序
运算放大器至 ADC 电路拓扑计算器 ADC-INPUT-CALC Texas Instruments 计算实用程序