ADS1274 四路、128kHz、24 位同步采样 Σ-Δ ADC
ADS1274 相关产品
- ADS1278 - 器件与被比较器件具有相似功能，但并不功能等效。
- ADS1258 - 器件与被比较器件具有相似功能，但并不功能等效。
- ADS1271 - Single channel version of the ADS1278
|
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
- Simultaneously Measure Four/Eight Channels
- Up to 144kSPS Data Rate
- AC Performance:
70kHz Bandwidth
111dB SNR (High-Resolution Mode)
-108dB THD
- DC Accuracy:
0.8µV/°C Offset Drift
1.3ppm/°C Gain Drift
- Selectable Operating Modes:
High-Speed: 144kSPS, 106dB SNR
High-Resolution: 52kSPS, 111dB SNR
Low-Power: 52kSPS, 31mW/ch
Low-Speed: 10kSPS, 7mW/ch
- Linear Phase Digital Filter
- SPI or Frame-Sync Serial Interface
- Low Sampling Aperture Error
- Modulator Output Option (digital filter bypass)
- Analog Supply: 5V
- Digital Core: 1.8V
- I/O Supply: 1.8V to 3.3V
- APPLICATIONS
- Vibration/Modal Analysis
- Multi-Channel Data Acquisition
- Acoustics/Dynamic Strain Gauges
- Pressure Sensors
ADS1274 芯片订购指南
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 |
| ADCPro™ 模数转换器评估软件 |
ADCPRO |
Texas Instruments |
应用软件 |
ADS1274 质量与无铅数据
ADS1274 应用技术支持与电子电路设计开发资源下载
- ADS1274 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- A
Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF
461 KB)
- A Spreadsheet for Calculating the Frequency Response of the
ADS1250-54
- Understanding the ADS1251, ADS1253, and ADS1254 Input
Circuitry (PDF 39 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
