首页 > TI 德州仪器 > 模数转换器

ADS1274 四路、128kHz、24 位同步采样 Σ-Δ ADC

ADS1274 相关产品
ADS1174 ADS1178 ADS1271 ADS1274 ADS1278
Resolution(Bits) 16 16 24 24 24
Sample Rate (max) 52kSPS 52kSPS 105kSPS 144kSPS 144kSPS
Architecture Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma Delta-Sigma
Power Consumption(Typ)(mW) 135 245 92 275 530
SNR(dB) 109 111 111
SNR(Typ)(dB) 97 97
SFDR(dB) 106 106 108 109 109
DNL(Max)(+/-LSB) 1 1 1 1 1
INL(Max)(+/-LSB) 0.0045% 0.0045% 0.0006% 0.0003% 0.0003%
No Missing Codes(Bits) 16 16 24 24 24
No. of Supplies 2 2 2 3 3
Analog Voltage AV/DD(Min)(V) 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
Logic Voltage DV/DD(Min)(V) 1.65 1.65 1.65 1.65 1.65
Logic Voltage DV/DD(Max)(V) 1.95 1.95 3.6 3.6 3.6
Input Configuration Range Vref Vref 1.06Vref Vref Vref
Reference Mode Ext Ext Ext Ext Ext
Rating Catalog Catalog Catalog Catalog Catalog
Pin/Package 64HTQFP 64HTQFP 16TSSOP 64HTQFP 64HTQFP
# Input Channels 4 8 1 4 8
Operating Temp Range(Celsius) -40 to 85 -40 to 85 -40 to 125 -40 to 125 -40 to 105

Based on the single-channel ADS1271, the ADS1274 (quad) and ADS1278 (octal) are 24-bit, delta-sigma ( ) analog-to-digital converters (ADCs) with data rates up to 144k samples per second (SPS), allowing simultaneous sampling of four or eight channels. The devices are offered in identical packages, permitting drop-in expandability.

Traditionally, industrial delta-sigma ADCs offering good drift performance use digital filters with large passband droop. As a result, they have limited signal bandwidth and are mostly suited for dc measurements. High-resolution ADCs in audio applications offer larger usable bandwidths, but the offset and drift specifications are significantly weaker than respective industrial counterparts.

ADS1274 特性
ADS1274 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
ADS1274IPAPR ACTIVE -40 to 105 23.95 | 1ku TQFP(PAG) | 64 1000 | LARGE T&R ADS1274
ADS1274IPAPRG4 ACTIVE -40 to 105 23.95 | 1ku TQFP(PAG) | 64 1000 | LARGE T&R ADS1274
ADS1274IPAPT ACTIVE -40 to 105 24.95 | 1ku TQFP(PAG) | 64 250 | SMALL T&R ADS1274
ADS1274IPAPTG4 ACTIVE -40 to 105 24.95 | 1ku TQFP(PAG) | 64 250 | SMALL T&R ADS1274
ADS1274 工具与软件
名称 型号 公司 工具/软件类型
ADS1274 性能开发套件 (PDK) ADS1274EVM-PDK Texas Instruments 开发电路板/EVM
ADS1274 评估模块 ADS1274EVM Texas Instruments 开发电路板/EVM
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
ADCProTM 模数转换器评估软件 ADCPRO Texas Instruments 应用软件
ADS1274 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
ADS1274IPAPR Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR ADS1274IPAPR ADS1274IPAPR
ADS1274IPAPRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR ADS1274IPAPRG4 ADS1274IPAPRG4
ADS1274IPAPT Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR ADS1274IPAPT ADS1274IPAPT
ADS1274IPAPTG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR ADS1274IPAPTG4 ADS1274IPAPTG4
ADS1274 应用技术支持与电子电路设计开发资源下载
  1. ADS1274 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)