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ADS124S18

現行

具有 PGA、VREF、2 個 IDAC 和 SPI 的 18 通道 24 位元 128kSPS ΔΣ ADC

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ADS124S18

現行
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產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 128 Number of input channels 18 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Excitation Current Sources (iDACs), Integrated Temp Sensor , GPIO, Integrated oscillator, PGA Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 0.103 Analog supply voltage (min) (V) 1.74 Analog supply voltage (max) (V) 3.6 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 128 Number of input channels 18 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Input voltage range (max) (V) 3.6 Input voltage range (min) (V) 0 Features Excitation Current Sources (iDACs), Integrated Temp Sensor , GPIO, Integrated oscillator, PGA Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 0.103 Analog supply voltage (min) (V) 1.74 Analog supply voltage (max) (V) 3.6 Digital supply (min) (V) 1.65 Digital supply (max) (V) 3.6
TQFP (PBS) 32 49 mm² (7 mm × 7 mm)
  • Low power consumption (as low as 64µA)
  • Wide supply voltage range:
    • Analog: 1.74V to 3.6V
    • Digital: 1.65V to 5.25V
  • Programmable gain: 0.5 to 256
  • Programmable data rate (up to 128kSPS) and speed mode to trade power consumption and noise performance
  • Simultaneous 50Hz and 60Hz rejection at 20 or 25SPS with single-cycle settling digital filter
  • Analog multiplexer with 8 (ADS1x4S14) or 18 (ADS1x4S18) independently selectable inputs
  • Dual-matched programmable current sources
  • Internal programmable voltage reference:1.25V or 2.5V with 35ppm/°C (max) drift
  • Internal 1% (max) accurate oscillator
  • Internal temperature sensor
  • Eight general-purpose I/Os (configurable as either push-pull or open-drain outputs)
  • Sequencer with 24 individually programmable configurations and digital comparators
  • SPI-compatible interface with optional CRC and daisy-chain capability
  • Low power consumption (as low as 64µA)
  • Wide supply voltage range:
    • Analog: 1.74V to 3.6V
    • Digital: 1.65V to 5.25V
  • Programmable gain: 0.5 to 256
  • Programmable data rate (up to 128kSPS) and speed mode to trade power consumption and noise performance
  • Simultaneous 50Hz and 60Hz rejection at 20 or 25SPS with single-cycle settling digital filter
  • Analog multiplexer with 8 (ADS1x4S14) or 18 (ADS1x4S18) independently selectable inputs
  • Dual-matched programmable current sources
  • Internal programmable voltage reference:1.25V or 2.5V with 35ppm/°C (max) drift
  • Internal 1% (max) accurate oscillator
  • Internal temperature sensor
  • Eight general-purpose I/Os (configurable as either push-pull or open-drain outputs)
  • Sequencer with 24 individually programmable configurations and digital comparators
  • SPI-compatible interface with optional CRC and daisy-chain capability

The ADS1x4S1x are precision, low-power, 16- and 24-bit, analog-to-digital converters (ADCs) that offer many integrated features to reduce system cost and component count in the most common sensor measurement applications. The devices feature up to 18 analog inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), a programmable low-drift voltage reference, two programmable excitation current sources, an oscillator, and a temperature sensor.

Four speed modes, with programmable output data rates from 3.9SPS up to 128kSPS, allow to optimize power consumption and noise performance for each application.

The ADS1x4S1x are precision, low-power, 16- and 24-bit, analog-to-digital converters (ADCs) that offer many integrated features to reduce system cost and component count in the most common sensor measurement applications. The devices feature up to 18 analog inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), a programmable low-drift voltage reference, two programmable excitation current sources, an oscillator, and a temperature sensor.

Four speed modes, with programmable output data rates from 3.9SPS up to 128kSPS, allow to optimize power consumption and noise performance for each application.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
EVM User's guide ADS124S18EVM-PDK Evaluation Module User's Guide PDF | HTML 2026/6/2
應用說明 Designing Temperature Monitoring Systems with NTC and RTD PDF | HTML 2024/5/15
應用說明 RTD Wire-Break Detection Using Precision Delta-Sigma ADCs PDF | HTML 2021/2/18

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

ADC-PHI-PRU-EVM — 用於將精密 ADC 評估模組連接至 TMDS64GPEVM 或 TMDS243GPEVM PRU 的轉接卡

ADC-PHI-PRU-EVM 轉接卡將適用於 AM64x 系列 (TMDS64GPEVM) 的 Sitara™ 處理器開發平台或適用於 AM243x 系列 (TMDS243GPEVM) 的微控制器 (MCU) 介接至 25 個以上精密類比轉數位轉換器 (ADC) 評估模組 (EVM)，以利於通訊、資料擷取和軟體開發。

ADC-PHI-PRU-EVM 將 ISSG-PRU 訊號路由轉送到對應的序列周邊介面 (SPI) 和強化的 SPI (eSPI) 或平行 ADC 資料通訊介面。轉接卡透過兩個選擇串聯或並聯連接的跨接器進行配置，並提供使用者可選擇的電源和訊號電平轉換，以配對所需的精密 ADC (...)

使用指南: PDF | HTML
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開發板

ADS124S18EVM-PDK — ADS124S18 評估模組

ADS124S18EVM 評估模組 (EVM) 可讓使用者透過序列週邊設備介面 (SPI) 評估 ADS124S18 的功能性。ADS124S18 是一款高精度、低功耗的 18 通道、128kSPS 之 ΔΣ 類比數位轉換器 (ADC)，具備彈性輸入多工器以及低雜訊可編程增益放大器 (PGA)。EVM 套件包含搭載 ADS124S18 元件的 ADS124S18EVM，以及一個隨附的精準 ADC 主機板 (PAMB)，該主機板作為 USB 至電腦圖形使用者介面 (GUI) 的通訊橋接器，可讓電腦軟體透過通用序列匯流排 (USB) 介面與 ADC 進行通訊，以實現資料擷取、組態設定與資料分析。

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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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