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類比轉數位轉換器 (ADC)
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ADS9224R

現行

具有內部參考和強化型 SPI 的 16 位元、3 MSPS、雙通道、同步採樣 SAR ADC

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
最新 ADS9326 現行 採用小型封裝的雙通道、同步取樣、16 位元 3MSPS SAR ADC Higher sampling rate (3-MSPS)
最新 ADS9327 現行 採用小型封裝的雙通道、同步取樣、16 位元 5MSPS SAR ADC Higher sampling rate (5-MSPS)

ADS9224R

現行
立即訂購

產品詳細資料

Resolution (Bits) 16 Sample rate (max) (ksps) 3000 Number of input channels 2 Interface type Enhanced SPI, SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 120 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 93.5 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 3000 Number of input channels 2 Interface type Enhanced SPI, SPI Architecture SAR Input type Differential Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 120 Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 5.5 SNR (dB) 93.5 Digital supply (min) (V) 1.65 Digital supply (max) (V) 5.5
VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • High resolution, high throughput:
    • ADS9224R: 16 bits, 3 MSPS, low latency: 333 ns
    • ADS9234R: 14 bits, 3.5 MSPS, low latency: 285 ns
  • Two unipolar, fully differential simultaneously sampled channels
  • Excellent DC and AC performance:
    • ADS9224R:
      • 16-bit NMC DNL, ±2-LSB max INL
      • 94-dB SNR, –109-dB THD
      • 88-dB SINAD at 1 MHz
    • ADS9234R:
      • 14-bit NMC DNL, ±1-LSB max INL
      • 85.6-dB SNR, –106-dB THD
      • 84-dB SINAD at 1 MHz
  • Feature integration:
    • Internal reference and reference buffers
    • Internal REFby2 buffer for setting common-mode
    • Data averaging
  • Enhanced-SPI interface for MCUs and FPGAs:
    • Wide read cycle to read data with MCUs
    • Clock re-timer for data transfers with digital isolators
    • DDR modes for FPGAs
    • Parallel byte mode for easy interface
  • Extended temperature range: –40°C to +125°C
  • High resolution, high throughput:
    • ADS9224R: 16 bits, 3 MSPS, low latency: 333 ns
    • ADS9234R: 14 bits, 3.5 MSPS, low latency: 285 ns
  • Two unipolar, fully differential simultaneously sampled channels
  • Excellent DC and AC performance:
    • ADS9224R:
      • 16-bit NMC DNL, ±2-LSB max INL
      • 94-dB SNR, –109-dB THD
      • 88-dB SINAD at 1 MHz
    • ADS9234R:
      • 14-bit NMC DNL, ±1-LSB max INL
      • 85.6-dB SNR, –106-dB THD
      • 84-dB SINAD at 1 MHz
  • Feature integration:
    • Internal reference and reference buffers
    • Internal REFby2 buffer for setting common-mode
    • Data averaging
  • Enhanced-SPI interface for MCUs and FPGAs:
    • Wide read cycle to read data with MCUs
    • Clock re-timer for data transfers with digital isolators
    • DDR modes for FPGAs
    • Parallel byte mode for easy interface
  • Extended temperature range: –40°C to +125°C

The ADS92x4R is a pin-compatible, high-speed, dual, simultaneous-sampling, analog-to-digital converters (ADC) with an integrated reference and reference buffer. The device can operate on a single 5-V supply and supports unipolar, fully differential analog input signals with excellent DC and AC specifications. The device has excellent AC performance with analog input frequencies up to 1.5 MHz, which makes the device suitable for wide-bandwidth data acquisition (DAQ) systems.

The device supports SPI-compatible serial (enhanced-SPI) and byte-wide parallel interfaces, making the device easy to pair with a diversity of microcontrollers, digital signal processors (DSPs), and field-programmable gate arrays (FPGAs). This device also supports a data averaging feature that provides an AC performance boost in noisy environments.

The device comes in a space-saving, 5-mm × 5-mm, VQFN package. The ADS92x4R is specified for the extended temperature range of –40°C to +125°C.

The ADS92x4R is a pin-compatible, high-speed, dual, simultaneous-sampling, analog-to-digital converters (ADC) with an integrated reference and reference buffer. The device can operate on a single 5-V supply and supports unipolar, fully differential analog input signals with excellent DC and AC specifications. The device has excellent AC performance with analog input frequencies up to 1.5 MHz, which makes the device suitable for wide-bandwidth data acquisition (DAQ) systems.

The device supports SPI-compatible serial (enhanced-SPI) and byte-wide parallel interfaces, making the device easy to pair with a diversity of microcontrollers, digital signal processors (DSPs), and field-programmable gate arrays (FPGAs). This device also supports a data averaging feature that provides an AC performance boost in noisy environments.

The device comes in a space-saving, 5-mm × 5-mm, VQFN package. The ADS92x4R is specified for the extended temperature range of –40°C to +125°C.
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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 ADS92x4R Dual, Low-Latency, Simultaneous-Sampling SAR ADC datasheet (Rev. C) PDF | HTML 2019/6/17
Application brief Why Use an FDA to Drive an ADC? PDF | HTML 2026/1/8
Application brief Precision ADCs in Servo Drives (Rev. A) PDF | HTML 2025/10/29
Product overview Precision ADCs for Motor Encoders and Position Sensing (Rev. A) PDF | HTML 2025/10/28
Circuit design True differential, 4 × 2 MUX, analog front end, simultaneous-sampling ADC circui (Rev. B) PDF | HTML 2024/9/20
Circuit design Circuit for protecting low-voltage SAR ADC from electrical overstress with minim (Rev. A) PDF | HTML 2024/9/19
應用說明 Continuous Wave Doppler Signal Chain Designs for TI’s Ultrasound AFE (Rev. A) PDF | HTML 2024/5/22
Application brief Low Latency Signal-Chains for Digital Control Loops with ADS9219 (Rev. A) PDF | HTML 2024/5/22
Application brief Understanding and Using SAR ADC SPICE Micromodel PDF | HTML 2021/11/23
Application brief Continuous Wave (CW) Signal Conditioning in Ultrasound Systems Using ADS92x4R 2019/10/10
Application brief Setting a Constant Common-Mode Voltage for Fully-Differential SAR ADC Inputs 2019/9/6
Application brief Improving Response Time and Accuracy in Autonomous Robots With Wideband SAR-ADCs 2018/10/3

設計與開發

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開發板

ADS9224REVM-PDK — ADS9224R 雙通道同時取樣 SAR ADC 性能示範套件 (PDK)

ADS9224R 評估模組 (EVM) 和性能展示套件 (PDK) 是評估 ADS9224R 連續近似暫存器 (SAR) 類比轉數位轉換器 (SAR) 效能的平台、這是一款全差動輸入、16 位元、3-MSPS 裝置。ADS9224REVM-PDK 包含 ADS9224REVM 評估板和精密主機介面 (PHI) 控制器板，可讓隨附的電腦軟體透過通用序列匯流排 (USB) 與 ADC 通訊，以進行資料擷取及分析。

使用指南: PDF | HTML
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支援軟體

SBAC219 — Source files for SBAA315

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模擬型號

ADS9224R PSpice Transient Model

SBAM464.ZIP (221 KB) - PSpice 模型
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模擬型號

ADS9224R TINA-TI Transient Reference Design

SBAM390.TSC (502 KB) - TINA-TI 參考設計
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模擬型號

ADS9224R TINA-TI Transient Spice Model

SBAM389.ZIP (7 KB) - TINA-TI Spice 模型
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模擬型號

ADS92X4R IBIS Model

SBAM391.ZIP (47 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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VQFN (RHB) 32 Ultra Librarian
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