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ADS7229

Short Description:

12-Bit, 1-MSPS, 1-ch SAR ADC w/ single-ended inputs


  • Input Type: Pseudo-Differential, Single Ended
  • Data Interface: SPI, DSP
  • Configuration: S/H-ADC
  • Voltage - Supply, Analog: 2.7V ~ 5.5V
  • Voltage - Supply, Digital: 1.65V ~ 5.5V
  • Operating Temperature: -40°C ~ 85°C

Product Details


FEATURES

  • 2.7V to 5.5V Analog Supply, Low Power:

    • 13.7mW (1MHz, +VA = 3V, +VBD = 1.8V)

  • 1MHz Sampling Rate 3V ≤ +VA ≤ 5.5V,
    900kHz Sampling Rate 2.7V ≤ +VA ≤ 3V

  • Excellent DC Performance:

    • ±0.15LSB Typ, ±0.5LSB Max INL

    • ±0.12LSB Typ, ±0.5LSB Max DNL

    • ±0.8mV Max Offset Error at 3V

    • ±1.25mV Max Offset Error at 5V

  • Excellent AC Performance at fi = 10kHz with 73.9dB SNR, 93.4dB SFDR, -88.5dB THD

  • Built-In Conversion Clock (CCLK)

  • 1.65V to 5.5V I/O Supply:

    • SPI/DSP-Compatible Serial Interface

    • SCLK up to 50MHz

  • Comprehensive Power-Down Modes:

    • Deep Power-Down

    • Nap Power-Down

    • Auto Nap Power-Down

  • Unipolar Input Range: 0V to VREF

  • Software Reset

  • Global CONVST (Independent of CS)

  • Programmable Status/Polarity EOC/INT

  • 4 × 4 QFN-16 and TSSOP-16 Packages

  • Multi-Chip Daisy-Chain Mode

  • Programmable TAG Bit Output

  • Auto/Manual Channel Select Mode (ADS7230)


APPLICATIONS 

    • Communications

    • Transducer Interface

    • Medical Instruments

    • Magnetometers

    • Industrial Process Control

    • Data Acquisition Systems

    • Automatic Test Equipment


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