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) 2.3 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) 2.3 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
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • BIPOLAR INPUT RANGE
  • TRUE DIFFERENTIAL INPUT
  • 200kHz SAMPLING RATE
  • MICRO POWER: 2.3mW at 200kHz
  • POWER DOWN: 3uA Max
  • AVAILABLE IN MSOP-8 PACKAGE
  • SERIAL INTERFACE
  • AC COMMON-MODE REJECTION
  • APPLICATIONS
    • TRANSDUCER INTERFACE
    • BATTERY OPERATED SYSTEMS
    • REMOTE DATA ACQUISITION
    • ISOLATED DATA ACQUISITION
    • AC MOTOR CONTROL
  • BIPOLAR INPUT RANGE
  • TRUE DIFFERENTIAL INPUT
  • 200kHz SAMPLING RATE
  • MICRO POWER: 2.3mW at 200kHz
  • POWER DOWN: 3uA Max
  • AVAILABLE IN MSOP-8 PACKAGE
  • SERIAL INTERFACE
  • AC COMMON-MODE REJECTION
  • APPLICATIONS
    • TRANSDUCER INTERFACE
    • BATTERY OPERATED SYSTEMS
    • REMOTE DATA ACQUISITION
    • ISOLATED DATA ACQUISITION
    • AC MOTOR CONTROL

The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV.

The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 is available in a plastic mini-DIP-8, an SO-8, or an MSOP-8 package.

The ADS7817 is a 12-bit, 200kHz sampling Analog-to-Digital (A/D) converter that features a high impedance fully differential analog input. The reference voltage can be varied from 100mV to 2.5V, with a corresponding input-referred resolution between 49uV and 1.22mV.

The differential input, low power, automatic power down, and small size make the ADS7817 ideal for direct connection to transducers in battery operated systems, remote data acquisition, or multi-channel applications. The ADS7817 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 日期
* Data sheet ADS7817: 12-Bit Differential Input Micro Power Sampling A/D Converter datasheet (Rev. A) 2001年 3月 13日
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015年 5月 21日
Application note Coding Schemes Used with Data Converters (Rev. A) 2015年 5月 15日
Application note Voltage Reference Scaling Techniques Increase Converter and Resolution Accuracy (Rev. A) 2015年 5月 8日
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 2011年 3月 17日
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010年 11月 10日
Application note High-Voltage Signal Conditioning for Differential ADCs 2004年 6月 14日
Application note Interfacing the ADS7822 to synchronous serial port of the 80x51 Microcontroller 2000年 9月 27日
Application note Remove the DC Portion of Signals with the ADS7817 2000年 9月 27日

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

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