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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 x 3
  • 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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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet ADS1x2S14 Low-power, 16- and 24-Bit, 8 -Channel, 64kSPS, Delta-Sigma ADC with PGA, Voltage Reference, and SPI datasheet PDF | HTML 2025年 12月 10日
Application note K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 2024年 9月 20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 A Basic Guide to RTD Measurements (Rev. A) PDF | HTML 2023年 3月 29日
Application note A Basic Guide to Thermocouple Measurements (Rev. A) PDF | HTML 2023年 3月 29日
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 2023年 3月 29日
Application note ADS124S08 3-Wire PT100 RTD Measurement Circuit w/ Low-Side Reference and 1 IDAC (Rev. B) 2021年 9月 9日
Application note Communication Methods for Data Integrity Using Delta-Sigma Data Converters (Rev. A) PDF | HTML 2021年 8月 23日
Application note RTD Wire-Break Detection Using Precision Delta-Sigma ADCs PDF | HTML 2021年 2月 18日
E-book Fundamentals of Precision ADC Noise Analysis (Rev. A) 2020年 6月 19日
Application brief Low-Cost, Single-Chip, Diff Temp Measurement Solution Using Delta-Sigma ADCs (Rev. A) 2018年 5月 4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

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
TI.com 無法提供
應用軟體及架構

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

This temperature-sensor linearization firmware provides a software routine for measuring and linearizing most common temperature sensors, including resistance temperature detectors (RTDs), thermocouples, thermistors (NTC, PTC, etc.) and analog temperature sensors.

This software includes an (...)

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

Expedite your embedded design using this example C code for the ADS122S14
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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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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 (...)
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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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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RTE) 16 Ultra Librarian
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