ADS1225 具有差动输入和内部振荡器的 24 位 100SPS ADC 24 位 ADC
2010-05-31 14:42:22 阅读6 评论0 字号：大中小
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
- - It is a single channel 20-bit bridge type ADC
- - 器件与被比较器件具有相似功能，但并不功能等效。
- - It is a two channel version of ADS1225
| 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 and 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
- 100SPS Data Rate (High-Speed Mode)
- Single-Cycle Settling
- Easy Conversion Control with START Pin
- Automatic Shutdown
- Low Noise: 4µVRMS Noise (High-Resolution Mode)
- Input Multiplexer with Two Differential Channels (ADS1226)
- Voltage Reference Supports Ratiometric Measurements
- Self-Calibrating
- Simple Read-Only 2-Wire Serial Interface
- Internal High-Impedance Input Buffer
- Internal Temperature Sensor
- Internal Oscillator
- Low-Power: 1mW While Operating, < 1µA During Shutdown
- Analog and Digital Supplies: 2.7V to 5.5V
- APPLICATIONS
- Hand-Held Instrumentation
- Portable Medical Equipment
- Industrial Process Control
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 |
| ACTIVE | -40 to 105 | 3.20 | 1ku | 2500 | LARGE T&R | ADS
1225 | ||
| ACTIVE | -40 to 105 | 3.20 | 1ku | 2500 | LARGE T&R | ADS
1225 | ||
| ACTIVE | -40 to 105 | 3.50 | 1ku | 250 | SMALL T&R | ADS
1225 | ||
| ACTIVE | -40 to 105 | 3.50 | 1ku | 250 | SMALL T&R | ADS
1225 |
ADS1225 工具与软件
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 |
| Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | |||
| Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | |||
| Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | |||
| Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR |
ADS1225 应用技术支持与电子电路设计开发资源下载
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- (Rev. A) (PDF 1993 KB)
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