ADS1225 具有差动输入和内部振荡器的 24 位 100SPS ADC 24 位 ADC

ADS1225 相关产品
ADS1225 ADS1226
Resolution(Bits) 24 24
Sample Rate (max) 100SPS 100SPS
Architecture Delta-Sigma Delta-Sigma
Power Consumption(Typ)(mW) 1.6 1.6
DNL(Max)(+/-LSB) 1 1
INL(Max)(+/-LSB) 0.0005% 0.0005%
No Missing Codes(Bits) 24 24
ENOB(Bits) 21 21
No. of Supplies 2 2
Analog Voltage AV/DD(Min)(V) 2.7 2.7
Analog Voltage AV/DD(Max)(V) 5.5 5.5
Logic Voltage DV/DD(Min)(V) 2.7 2.7
Logic Voltage DV/DD(Max)(V) 5.5 5.5
Input Configuration Range Vref Vref
Reference Mode Ext Ext
Rating Catalog Catalog
Pin/Package 16VQFN 16VQFN
# Input Channels 1 2
Operating Temp Range(Celsius) -40 to 105 -40 to 105

The ADS1225 and ADS1226 are 24-bit delta-sigma analog-to-digital (A/D) converters. They offer excellent performance, ease-of-use, and low power in a small 4mm × 4mm QFN package and are well-suited for demanding high-resolution measurements, especially in portable and other space-saving and power-constrained applications.

The ADS1225 and ADS1226 convert on command using a dedicated START pin. Simply pulse this pin to initiate a conversion. Data is read in a single cycle for retrieval over a 2-wire serial interface that easily connects to popular microcontrollers like the MSP430. After the conversion completes, the ADS1225 and ADS1226 automatically shuts down all circuitry.

Internal features include a two-channel multiplexer (ADS1226), selectable input buffer, temperature sensor, and oscillator.

ADS1225 特性
ADS1225 芯片订购指南
器件 状态 温度(oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
ADS1225IRGVR ACTIVE -40 to 105 3.20 | 1ku VQFN (RGV) | 16 2500 | LARGE T&R ADS
1225
ADS1225IRGVRG4 ACTIVE -40 to 105 3.20 | 1ku VQFN (RGV) | 16 2500 | LARGE T&R ADS
1225
ADS1225IRGVT ACTIVE -40 to 105 3.50 | 1ku VQFN (RGV) | 16 250 | SMALL T&R ADS
1225
ADS1225IRGVTG4 ACTIVE -40 to 105 3.50 | 1ku VQFN (RGV) | 16 250 | SMALL T&R ADS
1225
ADS1225 工具与软件
名称 型号 公司 工具/软件类型
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
ADS1225 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
ADS1225IRGVR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1225IRGVR ADS1225IRGVR
ADS1225IRGVRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1225IRGVRG4 ADS1225IRGVRG4
ADS1225IRGVT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1225IRGVT ADS1225IRGVT
ADS1225IRGVTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR ADS1225IRGVTG4 ADS1225IRGVTG4
ADS1225 应用技术支持与电子电路设计开发资源下载
  1. ADS1225 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)