首頁 數據轉換器 類比轉數位轉換器 (ADC) 精確 ADC
首頁
數據轉換器
類比轉數位轉換器 (ADC)
精確 ADC

ADS131A02

現行

24 位元 128-kSPS 2 通道同時取樣 delta-sigma ADC

立即訂購
產品規格表

ADS131A02

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 128 Number of input channels 2 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.5 Input voltage range (min) (V) -1.5 Features Daisy-Chainable Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 6.2 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 5.5 SNR (dB) 115.2 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 128 Number of input channels 2 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 4.5 Input voltage range (min) (V) -1.5 Features Daisy-Chainable Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 6.2 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 5.5 SNR (dB) 115.2 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
TQFP (PBS) 32 49 mm² 7 x 7
  • 2 or 4 simultaneous-sampling differential inputs
  • Data rates up to 128 kSPS
  • High performance:
    • Single-channel accuracy: better than 0.1% at 10,000:1 dynamic range
    • Effective resolution: 20.6 bits at 8 kSPS
    • THD: –100 dB at 50 Hz and 60 Hz
  • Integrated negative charge pump allows absolute input voltages below ground
  • Flexible analog power-supply operation:
    • Using negative charge pump: 3.0 V to 3.45 V
    • Unipolar supply: 3.3 V to 5.5 V
    • Bipolar supply: ±2.5 V
  • Digital supply: 1.65 V to 3.6 V
  • Low-drift internal voltage reference: 6 ppm/°C
  • ADC self checks
  • Cyclic redundancy check (CRC) and hamming code error correction on communications
  • Multiple SPI data interface modes:
    • Asynchronous interrupt
    • Synchronous master and slave
  • Package: 32-pin TQFP
  • Operating temperature range:
    –40°C to +125°C
  • 2 or 4 simultaneous-sampling differential inputs
  • Data rates up to 128 kSPS
  • High performance:
    • Single-channel accuracy: better than 0.1% at 10,000:1 dynamic range
    • Effective resolution: 20.6 bits at 8 kSPS
    • THD: –100 dB at 50 Hz and 60 Hz
  • Integrated negative charge pump allows absolute input voltages below ground
  • Flexible analog power-supply operation:
    • Using negative charge pump: 3.0 V to 3.45 V
    • Unipolar supply: 3.3 V to 5.5 V
    • Bipolar supply: ±2.5 V
  • Digital supply: 1.65 V to 3.6 V
  • Low-drift internal voltage reference: 6 ppm/°C
  • ADC self checks
  • Cyclic redundancy check (CRC) and hamming code error correction on communications
  • Multiple SPI data interface modes:
    • Asynchronous interrupt
    • Synchronous master and slave
  • Package: 32-pin TQFP
  • Operating temperature range:
    –40°C to +125°C

The ADS131A02 and ADS131A04 devices are two- and four-channel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs). The wide dynamic range, with scalable data rates up to 128 kSPS, and internal fault monitors make the ADS131A02 or ADS131A04 a good choice when designing for energy monitoring, grid protection, and control applications. The ADC inputs can be independently and directly interfaced to a resistor-divider network, a current transformer, or a Rogowski coil to measure voltage or current. Flexible power-supply options, including an internal negative charge pump, are available to maximize the effective resolution for high dynamic range applications.

Asynchronous and synchronous master and slave interface options are available, providing ADC configuration flexibility when chaining multiple devices in a single system. Several interface checks, ADC startup checks, and data integrity checks can be enabled on the interface to report errors in the ADC and during data transfer.

The complete analog front-end (AFE) solutions are packaged in a 32-pin TQFP package and are specified over the industrial temperature range of –40°C to +125°C.

The ADS131A02 and ADS131A04 devices are two- and four-channel, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs). The wide dynamic range, with scalable data rates up to 128 kSPS, and internal fault monitors make the ADS131A02 or ADS131A04 a good choice when designing for energy monitoring, grid protection, and control applications. The ADC inputs can be independently and directly interfaced to a resistor-divider network, a current transformer, or a Rogowski coil to measure voltage or current. Flexible power-supply options, including an internal negative charge pump, are available to maximize the effective resolution for high dynamic range applications.

Asynchronous and synchronous master and slave interface options are available, providing ADC configuration flexibility when chaining multiple devices in a single system. Several interface checks, ADC startup checks, and data integrity checks can be enabled on the interface to report errors in the ADC and during data transfer.

The complete analog front-end (AFE) solutions are packaged in a 32-pin TQFP package and are specified over the industrial temperature range of –40°C to +125°C.
filter 尋找其它 精確 ADC
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

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
ADS131E04 現行 適用電源監控和保護的 24 位元 64-kSPS 4 通道同步取樣 ΔΣ ADC Higher channel count (4), lower sampling rate (64 kSPS)
ADS131M02 現行 雙通道、24 位元、64-kSPS、同時取樣、delta-sigma ADC Lower sampling rate (32 kSPS)

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 5
重要文件 類型 標題 格式選項 日期
* Data sheet ADS131A0x 2- or 4-Channel, 24-Bit, 128-kSPS, Simultaneous-Sampling, Delta-Sigma ADC datasheet (Rev. E) PDF | HTML 2020年 6月 17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

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)。

開發板

ADS131A04EVM — ADS131A04 評估模組

ADS131A04 評估模組 (EVM) 是用於評估 ADS131A04 的平台，ADS131A04 是一款低功率、同時取樣、ΔΣ 類比轉數位轉換器 (ADC)。ADS131A04EVM 包含 ADS131A04EVM 板和可啟用隨附電腦軟體的精密主機介面 (PHI) 控制器電路板。
使用指南: PDF | HTML
TI.com 無法提供
支援軟體

ADS131A04-C-EXAMPLE-CODE — ADS131A04 example C code

Expedite your embedded design using this example C code for the ADS131A04
支援產品和硬體

支援產品和硬體
下載
模擬型號

ADS131A02 IBIS Model

SBAM292.ZIP (76 KB) - IBIS Model
下載
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 (...)

支援產品和硬體

支援產品和硬體
啟動 下載
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.
支援產品和硬體

支援產品和硬體
啟動
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
View Options
參考設計

TIDA-00835 — 採用 24 位元 Delta-Sigma ADC 的高準確度 ±0.5% 電流和隔離式電壓量測參考設計

TIDA-00835 參考設計採用雙極輸入配置，結合具有四通道、24 位元同時取樣差動輸入的 ΔΣ ADC，在寬動態範圍內進行精確的電壓和電流測量。配置 ADC 來測量 ±2.5V 雙極輸入。  使用固定增益放大器，將輸入調整至 ±2.5V 的 ADC 測量範圍。此 AFE 使用通用外部時脈將兩個 ADC 串接在一起，將輸入通道數量擴充至八個，並同時取樣所有輸入通道。每個模組擁有更多測量通道，可降低整體系統成本。
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TQFP (PBS) 32 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

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。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片