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,但針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
功能相似於所比較的產品。
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)

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 mm × 7 mm)
  • 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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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

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。

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支援軟體

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

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支援軟體

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 模型
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計算工具

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。

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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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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®。

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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 (...)
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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。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
TQFP (PBS) 32 Ultra Librarian

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