ADS1231
- Complete Front-End for Bridge Sensors
- Internal Amplifier, Gain of 128
- Internal Oscillator
- Low-Side Power Switch for Bridge Sensor
- Low Noise: 35nVrms
- Selectable Data Rates: 10SPS or 80SPS
- Simultaneous 50Hz and 60Hz Rejection at 10SPS
- Input EMI Filter
- External Voltage Reference up to 5V for Ratiometric Measurements
- Simple, Pin-Driven Control
- Two-Wire Serial Digital Interface
- Supply Range: 3V to 5.3V
- Package: SOIC-16
- Temperature Range: –40°C to +85°C
- APPLICATIONS
- Weigh Scales
- Strain Gauges
- Load Cells
- Industrial Process Control
All other trademarks are the property of their respective owners
The ADS1231 is a precision, 24-bit analog-to-digital converter (ADC). With an onboard low-noise amplifier, onboard oscillator, precision third-order 24-bit delta-sigma () modulator, and bridge power switch, the ADS1231 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and load cells.
The low-noise amplifier has a gain of 128, supporting a full-scale differential input of ±19.5mV. The ADC has 24-bit resolution and is comprised of a third-order modulator and fourth-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS. The ADS1231 can be put in a low-power standby mode or shut off completely in power-down mode.
The ADS1231 is controlled by dedicated pins; there are no digital registers to program. Data are output over an easily-isolated serial interface that connects directly to the MSP430 and other microcontrollers.
The ADS1231 is available in an SO-16 package and is specified from –40°C to +85°C.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | 24-Bit ADC for Bridge Sensors datasheet (Rev. D) | 2013年 10月 30日 | |
Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2024年 3月 18日 | |
Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 2024年 3月 13日 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023年 3月 29日 | |
E-book | Fundamentals of Precision ADC Noise Analysis | 2020年 6月 19日 | ||
Technical article | The real secret to become a better cook. Integrate smart scale technology in kitch | PDF | HTML | 2016年 10月 25日 | |
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015年 3月 19日 | ||
Application note | Delta-Sigma ADC Design for Bridge Sensor Applications | 2011年 9月 30日 | ||
User guide | ADS1x31REF User Guide (Rev. A) | 2011年 8月 10日 |
設計與開發
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ADS1231REF — ADS1231 評估模組
The ADS1231REF is a circuit board that is designed to feature the ADS1231 24-bit delta-sigma, precision low noise, analog-to digital converter. This board contains the entire circuitry and user interface needed for a weigh-scale digitizer. It is suitable for the general evaluation of the ADS1231 (...)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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精密度運算放大器 (Vos<1mV)
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功率運算放大器
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具整合式分流電阻器的數位電源監測器
晶粒與晶圓服務
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOIC (D) | 16 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
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建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。