ADS127L01
- Data Rates: Up to 512 kSPS
- AC + DC Performance:
- Passband: Up to 230 kHz
- SNR: Up to 115.5 dB
- THD: Down to –129 dB
- DC Accuracy:
- Offset Drift: 1.5 µV/°C
- Gain Drift: 0.2 ppm/°C
- Operating Modes:
- High-resolution (128 kSPS at 26 mW)
- Low-power (128 kSPS at 15 mW)
- Very-low Power: 105 dB SNR (128 kSPS at 9 mW)
- Digital Filter Options:
- Low-latency Filter: Sinc Frequency Response
- Wideband 1 Filter:
(0.45 to 0.55) × fDATA Transition Band - Wideband 2 Filter: (0.40 to 0.50) × fDATA Transition Band
- SPI™ or Frame-Sync Serial Interface
- Daisy-Chain Compatible
- Analog Supply: 2.7 V to 3.6 V
- Digital Supply: 1.7 V to 3.6 V
- Operating Temperature: –40°C to +125°C
The ADS127L01 is a 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) with data rates up to 512 kSPS. This device offers a unique combination of excellent dc accuracy and outstanding ac performance. The high-order, chopper-stabilized modulator achieves very low drift with low in-band noise. The integrated decimation filter suppresses modulator out-of-band noise. In addition to al low-latency filter, the ADS127L01 provides multiple Wideband filters with less than ±0.00004 dB of ripple, and an option for –116-dB stop-band attenuation at the Nyquist rate.
Traditionally, industrial delta-sigma ADCs that offer good drift performance use digital filters with large passband droop. As a result, industrial delta-sigma ADCs 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 industrial counterparts. The ADS127L01 combines these converters, providing high-precision industrial measurement with excellent dc and ac specifications over an extended industrial temperature range of –40°C to +125°C.
A variety of operating modes allow for optimization of speed, resolution, and power. A programmable serial interface with one of three options (SPI, frame-sync slave, or frame-sync master) provides convenient interfacing across isolation barriers to microcontrollers or digital signal processors (DSPs).
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 | ADS127L01 24-Bit, High-Speed, Wide-Bandwidth Analog-to-Digital Converter datasheet (Rev. B) | PDF | HTML | 2016/9/22 | ||
| 應用說明 | A Simple, Java-Based CRC Calculator | PDF | HTML | 2026/3/4 | |||
| 技術文章 | Go Differential to Differentiate Your Precision Design (Rev. A) | PDF | HTML | 2026/2/10 | |||
| 應用說明 | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2024/3/18 | |||
| 應用說明 | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 2024/3/13 | |||
| 應用說明 | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 2023/3/29 | |||
| 應用說明 | Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) | PDF | HTML | 2021/8/23 | |||
| 電子書 | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 2020/6/19 | ||||
| 白皮書 | Voltage-reference impact on total harmonic distortion | 2016/8/1 |
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)。
ADS127L01EVM — ADS127L01 評估模組
ADS127L01EVM 是 ADS127L01 的評估平台。ADS127L01 是 24 位元 ΔΣ 類比轉數位轉換器 (ADC),資料傳輸速率高達 512 kSPS。它提供出色的 DC 準確度和絕佳的 AC 性能獨特組合。高階斬波器穩定型調變器可實現極低漂移和低頻內雜訊。板載降頻濾波器可抑制調變器與頻外訊號雜訊。除了低延遲濾波器外,ADS127L01 也提供多個漣波低於 ±0.00004dB 的寬頻濾波器,且能在奈奎斯特率之前實現 –116dB 帶阻衰減。
附註:必須下載 ΔΣ ADC 評估軟體和 ADS127L01 產品套件,才能使 ADS127L01EVM 正常運作。
ADS127L01-EXCEL-TOOL-CALC — ADS127L01 Excel Calculator
ADS127L01 Excel 計算機工具為使用者提供了數種容易使用的工具,以簡化 ADS127L01 的配置。該工具可協助使用者了解不同的設定和操作模式,有助於使用 ADS127L01 高頻寬類比轉數位轉換器 (ADC) 進行設計最佳化。工具中包括完整的暫存器映射、ADC 轉換計算機、SNR 估算器、數位濾波器響應計算機,以及其他功能。ADS127L01 計算機可協助排除常見的編程與裝置設定障礙,進而加快上市時間。
SBOC461 — TINA-TI ADS127L01 MFB Driver LG Test of Figure78 THS4551
SBOC462 — TINA-TI ADS127L01 MFB Driver of Figure78 THS4551
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.
TIDA-010032 — 通用資料集中器參考設計,支援乙太網路、6LoWPAN 射頻網格等
IPv6 架構電網通訊已成為工業市場及智慧電表與電網自動化等應用的標準選擇。通用資料集中器設計提供完整的 IPv6 架構網路解決方案,整合乙太網路骨幹通訊,6LoWPAN 射頻網狀網路,RS-485 等。6LoWPAN 網狀網路解決了基於標準的互通性、可靠性、安全性和長距離連接等關鍵問題。此設計允許透過可透過乙太網路骨幹通訊存取的網路伺服器,遠端控制和監控終端裝置。此外也提供 3.3-V 和 5-V 電壓軌及各種周邊介面,以延伸至其他連線,例如寬頻電源線通訊 (PLC),蜂巢式和 Wi-Fi®。
TIDA-01013 — 適用於 DAQ 和無線感測器物聯網系統的低功耗、低雜訊 24 位元類比前端參考設計
TIDA-01471 — 適用於 PLC 類比輸入的 IEPE 振動感測器介面參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TQFP (PBS) | 32 | 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。