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ADS127L01

現行

24 位元、512kSPS、單通道、超低功耗、高頻寬 Delta-Sigma ADC

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
ADS127L21 現行 具可編程 IIR 和 FIR 濾波器的 24 位元、512-kSPS 寬頻 Delta-Sigma ADC Custom filters
功能與所比較的裝置相似
ADS127L11 現行 具有易於驅動的輸入和寬頻或低延遲濾波器的 24 位元 400 kSPS Delta-Sigma ADC Improved INL (0.9 ppm), lower power (3.3 mW), and smaller size (3 mm x 3 mm)

ADS127L01

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 512 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 3 Input voltage range (min) (V) 0 Features Daisy-Chainable, Wideband Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 7 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 SNR (dB) 115.5 Digital supply (min) (V) 1.7 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 512 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential Rating Catalog Reference mode External Input voltage range (max) (V) 3 Input voltage range (min) (V) 0 Features Daisy-Chainable, Wideband Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 7 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 3.6 SNR (dB) 115.5 Digital supply (min) (V) 1.7 Digital supply (max) (V) 3.6
TQFP (PBS) 32 49 mm² 7 x 7
  • 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
  • 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).

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).
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重要文件 類型 標題 格式選項 日期
* Data sheet ADS127L01 24-Bit, High-Speed, Wide-Bandwidth Analog-to-Digital Converter datasheet (Rev. B) PDF | HTML 2016年 9月 22日
Technical article Go Differential to Differentiate Your Precision Design (Rev. A) PDF | HTML 2026年 2月 10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
Application note Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 2021年 8月 23日
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020年 6月 19日
White paper Voltage-reference impact on total harmonic distortion 2016年 8月 1日

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開發板

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。

使用指南: PDF
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支援軟體

ADS127L01-EXCEL-TOOL-CALC — ADS127L01 Excel Calculator

The ADS127L01 Excel calculator tool provides the user with several easy-to-use tools to simplify the configuration of the ADS127L01. The tool helps the user understand the different settings and operating modes that aid in optimizing a design with the ADS127L01 wide-bandwidth analog-to-digital (...)

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SBOC461 — TINA-TI ADS127L01 MFB Driver LG Test of Figure78 THS4551

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SBOC462 — TINA-TI ADS127L01 MFB Driver of Figure78 THS4551

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模擬型號

ADS127L01 IBIS Model

SBAM270.ZIP (67 KB) - IBIS Model
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計算工具

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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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
要求
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
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參考設計

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®。
Design guide: PDF
電路圖: PDF
參考設計

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

在當今眾多應用中，如資料擷取系統 (DAQ)、現場儀器、物聯網 (IoT) 和自動測試設備等，對低功耗、低雜訊類比前端 (AFE) 的需求日益重要。在許多情況下，高解析度、高 SNR 和低功耗 ADC 的出現特別凸顯於了此需求，例如 TI 的 24 位元 ADS127L01 ΔΣ ADC，並搭配相輔相成的低功耗、低雜訊 AFE。這些新解決方案將使系統設計人員能在資料擷取、無線計量和現場儀器系統中整合更多通道。改進的 ADC 和 AFE 設計方案也將為眾多對功耗敏感的 IoT 應用提供更好的支援與效能提升。TIDA-01013 參考設計展示一套完整的低功耗、低雜訊 AFE 與 ADC (...)
Design guide: PDF
電路圖: PDF
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

工業振動感測是狀況監控中的關鍵環節，對於預測性維護是必要的。整合式電子壓電 (IEPE) 感測器是工業環境中最常用的振動感測器。此設計為 IEPE 感測器介面的完整類比前端，展示如何以低功耗與小體積實作，實現彈性的高解析度、高速轉換。
Design guide: PDF
電路圖: PDF
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