ADS7142
- Standalone, Nanopower Sensor Monitor for
Cost-sensitive Designs - Small Package Size: 1.5 mm x 2 mm
- Efficient Host Sleep and
Wake-up
- Autonomous Monitoring at 900 nW
- Windowed Comparator for Event-triggered Host Wake-up
- Data Buffering during Host Sleep
- Independent Sensor Configuration and Calibration
- Dual-Channel, Pseudo-Differential, or Ground-Sense Input Configuration
- Programmable Thresholds for Calibration
- Internal Calibration improves Offset and Drift
- False Trigger Prevention
- Programmable Thresholds per Channel
- Programmable Hysteresis for Noise Immunity
- Event Counter for Transient Rejection
- Deep Data Analysis
- Data Buffer for Fault Diagnostics
- High Precision Mode for 16-bit Accuracy
- One-Shot Mode for Fast Data Capture
- I2C™ Interface
- Compatible from 1.65 V to 3.6 V
- 8 Configurable Addresses
- Up to 3.4 MHz (High Speed)
- Wide Operating Range
- Analog Supply: 1.65 V to 3.6 V
- Temperature Range: –40°C to 125°C
The ADS7142 autonomously monitors signals while optimizing system power, reliability, and performance. It implements event-triggered interrupts per channel using a digital windowed comparator with programmable high and low thresholds, hysteresis, and event counter. The device includes a dual-channel analog multiplexer in front of a successive approximation register analog-to-digital converter (SAR ADC) followed by an internal data buffer for converting and capturing data from sensors.
The ADS7142 is available in 10-pin QFN package and consumes only 900 nW of power. The small form-factor and low power consumption make this device suitable for space-constrained and/or battery-powered applications.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | ADS7142 Nanopower, Dual-Channel, Programmable Sensor Monitor datasheet (Rev. A) | PDF | HTML | 2017/12/13 | ||
| Circuit design | ±12-V Voltage Sensing Circuit With an Isolated Amplifier and Pseudo-Differential (Rev. A) | 2024/6/12 | ||||
| 使用指南 | BOOSTXL-ADS7142-Q1 BoosterPack™ Plug-In Module (Rev. B) | PDF | HTML | 2021/6/9 | |||
| Circuit design | Monitoring NTC Thermistor Circuit With Single-Ended ADC (Rev. A) | PDF | HTML | 2019/6/27 | |||
| 應用說明 | TM4C1294 interface to ADS7142 software library (Rev. A) | PDF | HTML | 2019/1/11 | |||
| 技術文章 | Facing smart meter design challenges, part 1: maximizing battery life | PDF | HTML | 2018/8/16 | |||
| Application brief | Predictive Maintenance in Smart Meters Using Real-Time Monitoring | 2018/7/13 | ||||
| Application brief | Reduce False Triggers and Extend Battery Life in PIR Sensing Applications | 2018/3/27 | ||||
| 使用指南 | BOOSTXL-ADS7142 BoosterPack™ Plug-In Module User's Guide (Rev. B) | 2018/3/6 | ||||
| Application brief | Extend Battery Life and Simplify Calibration in Gas Sensing Applications (Rev. A) | 2018/2/6 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
BOOSTXL-ADS7142-Q1 — ADS7142-Q1 2 通道 12 位元 140-kSPS I2C 相容 ADC BoosterPack™ 外掛程式模組
BOOSTXL-ADS7142-Q1 是用於評估 ADS7142-Q1 連續近似暫存器 (SAR) 類比轉數位轉換器 (ADC) 性能的平台,此為奈米功率、雙通道和感測器監控裝置。評估套件包含 ADS7142-Q1 BoosterPack ™ 外掛模組,其 設計旨在展示裝置的各種運作模式。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面,列出各種常見計算,從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外,此計算機還與類比工程師口袋參考中描述的概念相得益彰。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
SBAC226 — Source files for SBAA317
TIDA-010005 — 軟體可配置心臟節律器偵測模組參考設計
TIDA-010019 — 溫度感測器中適用於冷接點補償參考設計的 RTD 更換
TIDA-01546 — 電池供電智慧流量計的電池和系統健全狀況監控參考設計
TIDA-01569 — 具有數位診斷和整合保護的 4 通道天線 LDO 參考設計
TIDA-01596 — 適用於環境溫度感測的智慧型恆溫器局部熱補償參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| X2QFN (RUG) | 10 | Ultra Librarian |
訂購與品質
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。