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ADS7817 12 位差动输入微功耗采样模数转换器

ADS7817 相关产品
ADS7817 说明

The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV.

The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.


ADS1286 ADS7816 ADS7817 ADS7822 ADS7826 ADS7827 ADS7829
Resolution(Bits) 12 12 12 12 10 8 12
Sample Rate (max) 37kSPS 200kSPS 200kSPS 200kSPS 200kSPS 250kSPS 125kSPS
Architecture SAR SAR SAR SAR SAR SAR SAR
Power Consumption(Typ)(mW) 1 1.9 2.3 0.6 0.8 0.6 0.6
SINAD(dB) 72 72 71 71 62 48 71
SNR(dB) 50 62 72
SFDR(dB) 90 86 86 86 81 68 86
DNL(Max)(+/-LSB) 0.75 0.75 1 0.75 1 1 0.75
INL(Max)(+/-LSB) 1 1 1 0.75 1 1 1.25
No Missing Codes(Bits) 12 12 12 12 10 8 12
No. of Supplies 1 1 1 1 1 1 1
Analog Voltage AV/DD(Min)(V) 4.75 4.5 4.75 2.7 2.7 2.7 2
Analog Voltage AV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.5 5.5 5.25
Logic Voltage DV/DD(Min)(V) 4.75 4.75 4.75 2.7 2.7 2.7 2.7
Logic Voltage DV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.25 5.25 5.25
Input Configuration Range Vref Vref +/-Vref at +Vref Vref Vref Vref Vref
Reference Mode Ext Ext Ext Ext Ext Ext Ext
Rating Catalog Catalog Catalog Catalog Catalog Catalog Catalog
Pin/Package 8PDIP, 8SOIC 8MSOP, 8PDIP, 8SOIC 8MSOP, 8SOIC 8MSOP, 8PDIP, 8SOIC 8SON 8SON 8SON
Comments Pseudo-differential input Pseudo-differential input Pseudo-differential input
# Input Channels 1 1 1 1 1 1 1
Operating Temperature Range(°C) -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85
ADS7817 特性
ADS7817 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
ADS7817E/250 ACTIVE -40 to 85 2.15 | 1ku MSOP(DGK) | 8 250 | SMALL T&R A17
ADS7817E/250G4 ACTIVE -40 to 85 2.15 | 1ku MSOP(DGK) | 8 250 | SMALL T&R A17
ADS7817E/2K5 ACTIVE -40 to 85 1.95 | 1ku MSOP(DGK) | 8 2500 | LARGE T&R A17
ADS7817E/2K5G4 ACTIVE -40 to 85 1.95 | 1ku MSOP(DGK) | 8 2500 | LARGE T&R A17
ADS7817EB/250 ACTIVE -40 to 85 2.55 | 1ku MSOP(DGK) | 8 250 | SMALL T&R A17
ADS7817EB/250G4 ACTIVE -40 to 85 2.55 | 1ku MSOP(DGK) | 8 250 | SMALL T&R A17
ADS7817EB/2K5 ACTIVE -40 to 85 2.35 | 1ku MSOP(DGK) | 8 2500 | LARGE T&R A17
ADS7817EB/2K5G4 ACTIVE -40 to 85 2.35 | 1ku MSOP(DGK) | 8 2500 | LARGE T&R A17
ADS7817EC/250 ACTIVE -40 to 85 2.85 | 1ku MSOP(DGK) | 8 250 | SMALL T&R A17
ADS7817EC/250G4 ACTIVE -40 to 85 2.85 | 1ku MSOP(DGK) | 8 250 | SMALL T&R A17
ADS7817EC/2K5 ACTIVE -40 to 85 2.65 | 1ku MSOP(DGK) | 8 2500 | LARGE T&R A17
ADS7817EC/2K5G4 ACTIVE -40 to 85 2.65 | 1ku MSOP(DGK) | 8 2500 | LARGE T&R A17
ADS7817P OBSOLETE -40 to 85 PDIP (N) | 8  
ADS7817PB OBSOLETE -40 to 85 PDIP (N) | 8  
ADS7817PC OBSOLETE -40 to 85 PDIP (N) | 8  
ADS7817U ACTIVE -40 to 85 2.15 | 1ku SOIC (D) | 8 75 | TUBE  
ADS7817U/2K5 ACTIVE -40 to 85 1.95 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
ADS7817U/2K5G4 ACTIVE -40 to 85 1.95 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
ADS7817UB ACTIVE -40 to 85 2.15 | 1ku SOIC (D) | 8 75 | TUBE  
ADS7817UBG4 ACTIVE -40 to 85 2.15 | 1ku SOIC (D) | 8 75 | TUBE  
ADS7817UC ACTIVE -40 to 85 2.85 | 1ku SOIC (D) | 8 75 | TUBE  
ADS7817UC/2K5 ACTIVE -40 to 85 2.65 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
ADS7817UC/2K5G4 ACTIVE -40 to 85 2.65 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
ADS7817UCG4 ACTIVE -40 to 85 2.85 | 1ku SOIC (D) | 8 75 | TUBE  
ADS7817UG4 ACTIVE -40 to 85 2.15 | 1ku SOIC (D) | 8 75 | TUBE  
ADS7817 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
ADS7817E/250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   ADS7817E/250
ADS7817E/250G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ADS7817E/250G4 ADS7817E/250G4
ADS7817E/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   ADS7817E/2K5
ADS7817E/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ADS7817E/2K5G4 ADS7817E/2K5G4
ADS7817EB/250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   ADS7817EB/250
ADS7817EB/250G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ADS7817EB/250G4 ADS7817EB/250G4
ADS7817EB/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   ADS7817EB/2K5
ADS7817EB/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ADS7817EB/2K5G4 ADS7817EB/2K5G4
ADS7817EC/250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   ADS7817EC/250
ADS7817EC/250G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ADS7817EC/250G4 ADS7817EC/250G4
ADS7817EC/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   ADS7817EC/2K5
ADS7817EC/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM ADS7817EC/2K5G4 ADS7817EC/2K5G4
ADS7817U Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   ADS7817U
ADS7817U/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   ADS7817U/2K5
ADS7817U/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS7817U/2K5G4 ADS7817U/2K5G4
ADS7817UB Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   ADS7817UB
ADS7817UBG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS7817UBG4 ADS7817UBG4
ADS7817UC Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   ADS7817UC
ADS7817UC/2K5 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   ADS7817UC/2K5
ADS7817UC/2K5G4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS7817UC/2K5G4 ADS7817UC/2K5G4
ADS7817UCG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS7817UCG4 ADS7817UCG4
ADS7817UG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR ADS7817UG4 ADS7817UG4
ADS7817 应用技术支持与电子电路设计开发资源下载
  1. ADS7817 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)
ADS7817 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