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ADS7822

現行

12 位元 200kSPS 微功耗取樣類比轉數位轉換器

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產品規格表

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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。
ADS8861 現行 具實際差動輸入、SPI 介面和菊輪鍊的 16 位元、1-MSPS、1 通道 SAR ADC Similar Functionality

ADS7822

現行
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 12 Sample rate (max) (ksps) 200 Number of input channels 1 Interface type SPI Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 1.6 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 71 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 200 Number of input channels 1 Interface type SPI Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 1.6 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 71 Digital supply (min) (V) 4.75 Digital supply (max) (V) 5.25
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • 200kHz Sampling Rate
  • microPower:
      1.6mW at 200kHz
      0.54mW at 75kHz
      0.06mW at 7.5kHz
  • Power Down: 3µA max
  • Mini-DIP-8, SO-8, and MSOP-8 Packages
  • Pseudo-Differential Input
  • Serial Interface
  • APPLICATIONS
    • Battery-Operated Systems
    • Remote Data Acquisition
    • Isolated Data Acquisition
    • Simultaneous Sampling, Multichannel Systems

All trademarks are the property of their respective owners.
  • 200kHz Sampling Rate
  • microPower:
      1.6mW at 200kHz
      0.54mW at 75kHz
      0.06mW at 7.5kHz
  • Power Down: 3µA max
  • Mini-DIP-8, SO-8, and MSOP-8 Packages
  • Pseudo-Differential Input
  • Serial Interface
  • APPLICATIONS
    • Battery-Operated Systems
    • Remote Data Acquisition
    • Isolated Data Acquisition
    • Simultaneous Sampling, Multichannel Systems

All trademarks are the property of their respective owners.

The ADS7822 is a 12-bit sampling analog-to-digital (A/D) converter with ensured specifications over a 2.7V to 5.25V supply range. It requires very little power even when operating at the full 200kHz rate. At lower conversion rates, the high speed of the device enables it to spend most of its time in the power-down mode—the power dissipation is less than 60µW at 7.5kHz.

The ADS7822 also features operation from 2.0V to 5V, a synchronous serial interface, and a pseudo-differential input. The reference voltage can be set to any level within the range of 50mV to VCC.

Ultra low power and small size make the ADS7822 ideal for battery-operated systems. It is also a perfect fit for remote data-acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The ADS7822 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.

The ADS7822 is a 12-bit sampling analog-to-digital (A/D) converter with ensured specifications over a 2.7V to 5.25V supply range. It requires very little power even when operating at the full 200kHz rate. At lower conversion rates, the high speed of the device enables it to spend most of its time in the power-down mode—the power dissipation is less than 60µW at 7.5kHz.

The ADS7822 also features operation from 2.0V to 5V, a synchronous serial interface, and a pseudo-differential input. The reference voltage can be set to any level within the range of 50mV to VCC.

Ultra low power and small size make the ADS7822 ideal for battery-operated systems. It is also a perfect fit for remote data-acquisition modules, simultaneous multichannel systems, and isolated data acquisition. The ADS7822 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.
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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 12-Bit, 200kHz, microPower Sampling Analog-To-Digital Converter datasheet (Rev. C) 2007/7/27
電子書 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015/5/21
應用說明 Determining Minimum Acquisition Times for SAR ADCs, part 2 2011/3/17
應用說明 Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010/11/10
應用說明 Interfacing the ADS7822 to synchronous serial port of the 80x51 Microcontroller 2000/9/27

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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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設計工具

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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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGK) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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