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ADS1250 22 位模数转换器

ADS1250 相关产品

The ADS1250 is a precision, wide dynamic range, delta-sigma, analog-to-digital converter with 20-bit resolution operating from a single +5V supply. The delta-sigma architecture is used for wide dynamic range and to guarantee 20 bits of no missing code performance. An effective resolution of 18 bits (2.8ppm of rms noise) is achieved for conversion rates up to 25kHz. The dynamic range of the converter is further increased by providing a low-noise Programmable Gain Amplifier (PGA) with gain stages of 1, 2, 4, or 8 for low level input signals.

The ADS1250 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weigh scales, chromatography and portable instrumentation. The converter includes a flexible synchronous serial interface and offers a three-wire control mode for low-cost isolation.

The ADS1250 is a single-channel converter and is offered in an SOL-16 package.

ADS1158 ADS1250 ADS1251 ADS1252 ADS1253 ADS1254 ADS1255 ADS1258
Resolution(Bits) 16 20 24 24 24 24 24 24
Sample Rate (max) 125KSPS 25kSPS 20kSPS 41kSPS 20kSPS 20kSPS 30kSPS 125kSPS
Architecture Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma
Power Consumption(Typ)(mW) 42 75 7.5 40 7.5 4.36 36 42
DNL(Max)(+/-LSB) 1 1 1 1 1 1 2 1
INL(Max)(+/-LSB) 1 0.0012% 0.0002% 0.0003% 0.0002% 0.0002% 0.0003% 0.0003%
No Missing Codes(Bits) 16 20 24 24 24 24 24 24
ENOB(Bits) 16 18 19 19 19 19 23 21.6
No. of Supplies 2 1 1 1 1 2 2 2
Analog Voltage AV/DD(Min)(V) 4.75 4.75 4.75 4.75 4.75 4.75 4.75 4.75
Analog Voltage AV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.25 5.25 5.25 5.25
Logic Voltage DV/DD(Min)(V) 2.5 4.75 4.75 4.75 4.75 1.8 1.8 2.5
Logic Voltage DV/DD(Max)(V) 3.6 5.25 5.25 5.25 5.25 3.6 3.6 3.6
Input Configuration Range 1.06 Vref Vref/PGA (1-8) Vref Vref Vref Vref 2Vref/PGA(1-64) 1.06Vref
Reference Mode Ext Ext Ext Ext Ext Ext Ext Ext
Rating Catalog Catalog Catalog Catalog Catalog Catalog Catalog Catalog
Pin/Package 48VQFN 16SOIC 8SOIC 8SOIC 16SSOP/QSOP 20SSOP/QSOP 20SSOP 48VQFN
# Input Channels 16 1 1 1 4 4 2 16
Operating Temp Range(Celsius) -40 to 105 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 105
ADS1250 特性
ADS1250 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
ADS1250U ACTIVE -40 to 85 9.60 | 1ku SOIC (DW) | 16 40 | TUBE ADS1250U
ADS1250U/1K ACTIVE 8.70 | 1ku SOIC (DW) | 16 1000 | LARGE T&R ADS1250U
ADS1250U/1KG4 ACTIVE 8.70 | 1ku SOIC (DW) | 16 1000 | LARGE T&R ADS1250U
ADS1250UG4 ACTIVE -40 to 85 9.60 | 1ku SOIC (DW) | 16 40 | TUBE ADS1250U
ADS1250 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
ADS1250 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
ADS1250U Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS1250U ADS1250U
ADS1250U/1K Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS1250U/1K ADS1250U/1K
ADS1250U/1KG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS1250U/1KG4 ADS1250U/1KG4
ADS1250UG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS1250UG4 ADS1250UG4
ADS1250 应用技术支持与电子电路设计开发资源下载
  1. ADS1250 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)