ADS7041
- Industry’s First SAR ADC with Nanowatt Power Consumption:
- 189 µW at 1 MSPS with 1.8-V AVDD
- 600 µW at 1 MSPS with 3-V AVDD
- 60 µW at 100 kSPS with 3-V AVDD
- Less than 1 µW at 1 kSPS with 3-V AVDD
- Industry’s Smallest SAR ADC:
- X2QFN-8 Package with 2.25-mm2 Footprint
- 1-MSPS Throughput with Zero Data Latency
- Wide Operating Range:
- AVDD: 1.65 V to 3.6 V
- DVDD: 1.65 V to 3.6 V (Independent of AVDD)
- Temperature Range: –40°C to 125°C
- Excellent Performance:
- 10-Bit Resolution with NMC
- ±0.8-LSB (Max) INL, ±0.7-LSB (Max) DNL
- 61-dB SNR with 3-V AVDD
- –75-dB THD with 3-V AVDD
- Unipolar Input Range: 0 V to AVDD
- Integrated Offset Calibration
- SPI™-Compatible Serial Interface: 14 MHz
- JESD8-7A Compliant Digital I/O
The ADS7041 is a 10-bit, 1-MSPS, analog-to-digital converter (ADC). The device supports a wide analog input voltage range (1.65 V to 3.6 V) and includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit. The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65 V to 3.6 V), enabling direct interface to a variety of host controllers. The ADS7041 complies with the JESD8-7A standard for a normal DVDD range (1.65 V to 1.95 V).
The ADS7041 is available in 8-pin, miniature, leaded, and X2QFN packages and is specified for operation from –40°C to 125°C. Miniature form-factor and extremely low-power consumption make this device suitable for space-constrained, 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 | ADS7041 Ultra-Low Power, Ultra-Small Size, 10-Bit, 1-MSPS, SAR ADC datasheet (Rev. C) | PDF | HTML | 2015/12/10 | ||
| Application brief | Precision ADCs in Servo Drives (Rev. A) | PDF | HTML | 2025/10/29 | |||
| 類比設計期刊 | Low-power sensor measurements: 3.3-V, 1-ksps, 12-bit, single-ended, single-suppl (Rev. B) | PDF | HTML | 2024/9/26 | |||
| Circuit design | Driving a SAR ADC directly without a front-end buffer circuit (Rev. B) | PDF | HTML | 2024/9/23 | |||
| Circuit design | High-side current shunt monitor circuit to 3-V single-ended ADC (Rev. A) | PDF | HTML | 2024/9/20 | |||
| Circuit design | Low-power sensor measurements: 3.3-V, 1-ksps, 12-bit, single-ended, dual-supply (Rev. B) | PDF | HTML | 2024/9/17 | |||
| Application brief | Optimized Sensor Measurement: Driving a SAR ADC Input Without a Driver Amplifier | PDF | HTML | 2017/9/1 | |||
| 應用說明 | Low-Cost, Low-Power, Small 14-bit AFE: Interleaved ADCs Scalable up to 7.5 MSPS | 2017/5/26 | ||||
| 電子書 | Best of Baker's Best: Precision Data Converters -- SAR ADCs | 2015/5/21 |
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)。
ADS7042EVM-PDK — ADS7042 超低功耗超小型 12 位元 1 MSPS SAR ADC 性能展示套件 (PDK)
ADS7042 評估模組 (EVM) 性能示範套件 (PDK) 是用於評估 12 位元、ADS7042 漸近法暫存器 (SAR) 類比轉數位轉換器 (ADC) 的平台。
PDK 內含 ADS7042 評估板、精密主機介面 (PHI) 控制器電路板，以及隨附的電腦軟體，可讓使用者透過通用序列匯流排 (USB) 與 ADC 通訊、擷取資料，以及執行資料分析。
BOOST-ADS7042 — ADS7042 超低功耗資料採集 BoosterPack
ADS7042 超低功率資料擷取 BoosterPack 是一套獨立式系統，採用 TI ADS7042 漸近法暫存器類比轉數位轉換器，將類比感測器資料轉換為數位 SPI 資料。 此 BoosterPack 的設計可和 TI LaunchPad™ 生態系統相容，透過板載環境光感測器或 SMA 輸入插孔，從類比感測器輸入實現完整的資料擷取系統，並藉由 LaunchPad 上的 USB 連接埠透過 UART 進行數位資料輸出。 下方「立即訂購」一節中會列出。 如需有關完整精準的 SAR ADC 產品組合詳細資訊，請造訪：www.ti.com/precisionadc。
如需採用 ADS7042 (...)
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.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| X2QFN (RUG) | 8 | Ultra Librarian |
| VSSOP (DCU) | 8 | 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。