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ADS122S14

現行

具有 PGA、VREF、2 個 IDAC 和 SPI 的 8 通道 24 位元 64kSPS ΔΣ ADC

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產品規格表

ADS122S14

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 64 Number of input channels 8 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal 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) 64 Number of input channels 8 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Catalog Reference mode External, Internal 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
WQFN (RTE) 16 9 mm² (3 mm × 3 mm)
  • Low power consumption (as low a 57µA)
  • Wide supply voltage range:
    • Analog: 1.74V to 3.6V
    • Digital: 1.65V to 3.6V
  • Programmable gain: 0.5 to 256
  • Programmable data rate (up to 64kSPS) 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 independently selectable inputs
  • Dual-matched programmable current sources
  • Internal programmable voltage reference:1.25V or 2.5V with 25ppm/°C (max) drift
  • Internal 1% (max) accurate oscillator
  • Internal temperature sensor
  • Four general-purpose I/Os (push-pull or open-drain output)
  • SPI-compatible interface with optional CRC and daisy-chain capability
  • Low power consumption (as low a 57µA)
  • Wide supply voltage range:
    • Analog: 1.74V to 3.6V
    • Digital: 1.65V to 3.6V
  • Programmable gain: 0.5 to 256
  • Programmable data rate (up to 64kSPS) 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 independently selectable inputs
  • Dual-matched programmable current sources
  • Internal programmable voltage reference:1.25V or 2.5V with 25ppm/°C (max) drift
  • Internal 1% (max) accurate oscillator
  • Internal temperature sensor
  • Four general-purpose I/Os (push-pull or open-drain output)
  • SPI-compatible interface with optional CRC and daisy-chain capability

The ADS1x2S14 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 eight 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 20SPS up to 64kSPS, allow to optimize power consumption and noise performance for each application. At output data rates of 20SPS and 25SPS, the integrated digital filter offers simultaneous 50Hz and 60Hz line-cycle rejection with single-cycle settling.

The ADS1x2S14 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 eight 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 20SPS up to 64kSPS, allow to optimize power consumption and noise performance for each application. At output data rates of 20SPS and 25SPS, the integrated digital filter offers simultaneous 50Hz and 60Hz line-cycle rejection with single-cycle settling.
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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
* 資料表 ADS1x2S14 Low-power, 16- and 24-Bit, 8 -Channel, 64kSPS, Delta-Sigma ADC with PGA, Voltage Reference, and SPI datasheet PDF | HTML 2025/12/10
應用說明 K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 2024/9/20
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 A Basic Guide to RTD Measurements (Rev. A) PDF | HTML 2023/3/29
應用說明 Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023/3/29
應用說明 A Basic Guide to Thermocouple Measurements (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
應用說明 RTD Wire-Break Detection Using Precision Delta-Sigma ADCs PDF | HTML 2021/2/18
電子書 Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020/6/19
Application brief Low-Cost, Single-Chip, Diff Temp Measurement Solution Using Delta-Sigma ADCs (Rev. A) 2018/5/4

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

ADS122S14EVM-PDK — ADS122S14 評估模組

ADS122S14EVM 與 ADS122C14EVM 評估模組 (EVM) 可讓使用者評估具有序列週邊設備介面 (SPI) 的 ADS122S14 及具備積體電路 (I2C) 介面的 ADS122C14 之功能。這些裝置是精準、低功耗、8 通道、24 位元、64 kSPS 的 ΔΣ 類比轉數位轉換器 (ADC)，具備靈活的輸入多工器與低雜訊可編程增益放大器 (PGA)。EVM 套件包含 ADC 裝置及隨附的精準 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 USB 與 ADC (...)
使用指南: PDF | HTML
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開發板

SNSR-DUAL-ADC-EVM — ADS122S14 和 MSPM0G1507 評估模組

SNSR-DUAL-ADC-EVM 是一款低功率的精密感測器量測設計，由兩個 ADS122S14 類比轉數位轉換器 (ADC) 和一個 MSPM0G1507 微控制器 (MCU) 組成。ADS122S14 是精密低功率 8 通道 24 位元 ΔΣ ADC。MSPM0G1507 是強化型 Arm® Cortex®-M0+ 32 位元核心平台上的 32 位元 MCU，以高達 80MHz 的時脈速度運作。
使用指南: PDF | HTML
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應用軟體及架構

ADC-TEMP-SENSOR-FW — Temperature-sensor firmware source files

這款溫度感測器線性化韌體提供軟體常式來測量和線性化最常用的溫度感測器，包括電阻溫度偵測器 (RTD)、熱電偶、熱敏電阻 (NTC、PTC 等) 與類比溫度感測器。

此軟體包含類比轉數位轉換器 (ADC) 硬體抽象層，可在 ADC 與微處理器 (MCU) 之間進行通訊，並且可將感測器資料轉換並線性化為溫度值的感測器 API，以及展示如何藉由原始碼來使用感測器 (精確 ADC 及 MCU) 讀取溫度的範例。

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支援軟體

ADS122S14-C-EXAMPLE-CODE — ADS122S14 C code example

Expedite your embedded design using this example C code for the ADS122S14
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模擬型號

ADS112S14 and ADS122S14 IBIS Model

SBAM535.ZIP (30 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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參考設計

TIDA-011026 — 現場發射器平台：三線 4mA 至 20mA 介面參考設計

此參考設計提供 3 線制電壓和電流介面感測器的 4-20mA 介面實作範例。此設計可評估 XTR200 和電流迴路保護器 TPS2661。XTR200 整合了電壓和電流現場發射器通訊介面的輸出驅動電路，支援標準工業訊號電平，如 4-20mA、0-20mA 及 0-10V。此參考設計透過針腳接頭提供對脈衝寬度調變 (PWM) 介面的存取，此介面用於驅動輸出級。此針腳接頭也提供 3.3V 電源來為連接的微控制器供電。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RTE) 16 Ultra Librarian
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