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ADS124S08

現行

適用於感測器量測且具有 PGA 和電壓參考的 24 位元、4-kSPS、12 通道 delta-sigma ADC

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產品規格表

ADS124S08

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 24 Sample rate (max) (ksps) 4 Number of input channels 12 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) 2.625, 5.25 Input voltage range (min) (V) -2.625, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 1.75 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.6
Resolution (Bits) 24 Sample rate (max) (ksps) 4 Number of input channels 12 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) 2.625, 5.25 Input voltage range (min) (V) -2.625, 0 Features 50/60 Hz Rejection, Excitation Current Sources (iDACs), GPIO, Oscillator, PGA, Temp Sensor Operating temperature range (°C) -50 to 125 Power consumption (typ) (mW) 1.75 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 Digital supply (min) (V) 2.7 Digital supply (max) (V) 3.6
TQFP (PBS) 32 49 mm² 7 x 7 VQFN (RHB) 32 25 mm² 5 x 5
  • Low Power Consumption: As Low as 280 µA
  • Low-Noise PGA: 19 nVRMS at Gain = 128
  • Programmable Gain: 1 to 128
  • Programmable Data Rates: 2.5 SPS to 4 kSPS
  • Simultaneous 50-Hz and 60-Hz Rejection at
    ≤ 20 SPS with Low-Latency Digital Filter
  • Analog Multiplexer with 12 (ADS124S08) or 6 (ADS124S06) Independently Selectable Inputs
  • Dual-Matched Programmable Current Sources for Sensor Excitation: 10 µA to 2000 µA
  • Internal Reference: 2.5 V, 10 ppm/°C (max) Drift
  • Internal Oscillator: 4.096 MHz, 1.5% Accuracy
  • Internal Temperature Sensor
  • Extended Fault Detection Circuits
  • Self Offset and System Calibration
  • Four General-Purpose I/Os
  • SPI-Compatible Interface with Optional CRC
  • Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)
  • Digital Supply: 2.7 V to 3.6 V
  • Operating Temperature: –50°C to +125°C
  • Low Power Consumption: As Low as 280 µA
  • Low-Noise PGA: 19 nVRMS at Gain = 128
  • Programmable Gain: 1 to 128
  • Programmable Data Rates: 2.5 SPS to 4 kSPS
  • Simultaneous 50-Hz and 60-Hz Rejection at
    ≤ 20 SPS with Low-Latency Digital Filter
  • Analog Multiplexer with 12 (ADS124S08) or 6 (ADS124S06) Independently Selectable Inputs
  • Dual-Matched Programmable Current Sources for Sensor Excitation: 10 µA to 2000 µA
  • Internal Reference: 2.5 V, 10 ppm/°C (max) Drift
  • Internal Oscillator: 4.096 MHz, 1.5% Accuracy
  • Internal Temperature Sensor
  • Extended Fault Detection Circuits
  • Self Offset and System Calibration
  • Four General-Purpose I/Os
  • SPI-Compatible Interface with Optional CRC
  • Analog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)
  • Digital Supply: 2.7 V to 3.6 V
  • Operating Temperature: –50°C to +125°C

The ADS124S06 and ADS124S08 are precision, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs) that offer low power consumption and many integrated features to reduce system cost and component count in applications measuring small-signal sensors.

These ADCs feature configurable digital filters that offer low-latency conversion results and 50-Hz or
60-Hz rejection for noisy industrial environments. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify low-level signals for resistive bridge or thermocouple applications. Additionally, these devices integrate a low-drift, 2.5-V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing.

An input multiplexer supports 12 inputs for the ADS124S08 and six inputs for the ADS124S06 that can be connected to the ADC in any combination for design flexibility. In addition, these devices include features such as sensor burn-out detection, voltage bias for thermocouples, system monitoring, and four general-purpose I/Os.

The devices are offered in a leadless VQFN-32 or a TQFP-32 package.

The ADS124S06 and ADS124S08 are precision, 24-bit, delta-sigma (ΔΣ), analog-to-digital converters (ADCs) that offer low power consumption and many integrated features to reduce system cost and component count in applications measuring small-signal sensors.

These ADCs feature configurable digital filters that offer low-latency conversion results and 50-Hz or
60-Hz rejection for noisy industrial environments. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify low-level signals for resistive bridge or thermocouple applications. Additionally, these devices integrate a low-drift, 2.5-V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing.

An input multiplexer supports 12 inputs for the ADS124S08 and six inputs for the ADS124S06 that can be connected to the ADC in any combination for design flexibility. In addition, these devices include features such as sensor burn-out detection, voltage bias for thermocouples, system monitoring, and four general-purpose I/Os.

The devices are offered in a leadless VQFN-32 or a TQFP-32 package.
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重要文件 類型 標題 格式選項 日期
* Data sheet ADS124S0x Low-Power, Low-Noise, Highly Integrated, 6- and 12-Channel, 4-kSPS, 24-Bit, Delta-Sigma ADC with PGA and Voltage Reference datasheet (Rev. C) PDF | HTML 2017年 6月 5日
Application note Designing EMC-Compliant, High-Accuracy Temperature Measurement (RTD / Thermocouple) Systems with ADS124S08 PDF | HTML 2026年 1月 6日
Application note Temperature Monitor for Power Modules and Power Electronic Parts 2025年 7月 30日
Application note K-type thermocouple measurement circuit with precision ADC (Rev. A) PDF | HTML 2024年 9月 20日
Circuit design Two-wire PT100 RTD measurement circuit with low-side reference (Rev. B) PDF | HTML 2024年 9月 18日
Circuit design Four-wire PT100 RTD measurement circuit with low-side reference (Rev. B) PDF | HTML 2024年 9月 17日
Application note Designing Temperature Monitoring Systems with NTC and RTD PDF | HTML 2024年 5月 15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 QFN and SON PCB Attachment (Rev. C) PDF | HTML 2023年 12月 6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 RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 (Rev. A) PDF | HTML 2023年 3月 27日
Circuit design Circuit for Protecting ADS124S08 ADC From EOS for RTD Measurement PDF | HTML 2022年 5月 24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 brief How to Implement Isolated I2C-Based Cold-Junction Measurements Using GPIOs PDF | HTML 2021年 5月 24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 A Reinforced-isolated Analog Input Chain for Space-constrained Applications 2019年 9月 1日
Technical article Let the loop current flow, but only 4-20mA PDF | HTML 2017年 7月 24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

ADS124S08EVM — ADS124S08 評估模組

ADS124S08EVM 是一款用於評估 ADS124S08 類比轉數位轉換器 (ADC) 的平台。ADS124S08 為 24 位元、4kSPS、12 通道、低功耗 ΔΣ ADC，適用於感測器量測和製程控制應用。ADS124S08 還內建高精確度振盪器與卓越的整合式參考電壓漂移性能，能實現多種輸入訊號的精準量測。使用 ADS124S08EVM 和 ΔΣ ADC EvaluaTIon 軟體以縮短原型開發時間，加快產品上市速度。ADS124S08EVM 包括 ADS124S08 電路板和 USB 傳輸線。
使用指南: PDF
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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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韌體

SBAC159 — ADS1x4S08 Firmware Example Code

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支援軟體

ADS124S08-C-EXAMPLE-CODE — ADS124S08 Example C Code

Expedite your embedded design using this example C code for the ADS124S08 product family
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模擬型號

ADS124S08 IBIS Model

SBAM301.ZIP (57 KB) - IBIS Model
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計算工具

ADC-DESIGN-CALC — Online design calculator tool for TI Precision ADCs

ADC-DESIGN-CALC is an online resource with multiple ADC calculator tools (such as Digital Filter Response, Code-to-Voltage, CMR, CRC, etc.) for TI Precision ADCs.
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ADC-RTD-CONFIG-CALC — RTD Configuration Calculator for Precision ADCs

This resistance temperature detector (RTD) configuration calculator is a Microsoft® Excel-based tool that helps the user identify a system solution for an RTD application. Two-, three- and four-wire RTD configurations are shown by default, with options for a high-side or low-side reference (...)

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ADS124S08-EXCEL-CALC-TOOL — ADS1x4S0x Design Calculator

The ADS124S08 Excel™ calculator tool provides the user with several easy-to-use tools to simplify the configuration of the ADS114S06, ADS114S08, ADS124S06, and ADS124S08. To ensure proper device functionality, the tool includes a common-mode-range calculator to easily determine if the (...)

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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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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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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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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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參考設計

TIDA-01434 — 適用於 24 位元 ADC 的隔離式、無變壓器、雙極供電參考設計

這款隔離式、3.65mm 薄型參考設計可透過 24 位元 ΔΣ 類比轉數位轉換器 (ADC) 實現高度整合、雙極輸入與高性能解決方案。新型類比輸入模組需要在不同層面具備高性能，例如在相同空間大小下提供更高的通道密度，因此必須降低功耗，同時具備更廣泛的操作溫度範圍。
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
VQFN (RHB) 32 Ultra Librarian
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