ADS8328 2.7V-to-5.5V 16-Bit 500kSPS Serial ADC With 2-to-1 Multiplexer | TI.com

ADS8328
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2.7V-to-5.5V 16-Bit 500kSPS Serial ADC With 2-to-1 Multiplexer

 

Description

The ADS8327 is a low power, 16-bit, 500-kSPS analog-to-digital converter with a unipolar input. The device includes a 16-bit capacitor-based SAR A/D converter with inherent sample and hold.

The ADS8328 is based on the same core and includes a 2-to-1 input MUX with programmable option of TAG bit output. Both the ADS8327 and ADS8328 offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used.

These converters are available in a 16-lead TSSOP or 4×4 QFN packages and are fully specified for operation over the industrial –40°C to +85°C temperature range.

Features

  • 2.7-V to 5.5-V Analog Supply, Low Power:
    • 10.6 mW (500 kHz, +VA = 2.7 V,
      +VBD = 1.8 V)
  • 500-kHz Sampling Rate
  • Excellent DC Performance
    • ±1.5 LSB Typ, ±2 LSB Max INL
    • ±0.6 LSB Typ, ±1 LSB Max DNL
    • 16-Bit NMC Over Temperature
    • ±0.5 mV Max Offset Error at 2.7 V
    • ±1 mV Max Offset Error at 5 V
  • Excellent AC Performance at fI = 10 kHz with 91 dB SNR, 100 dB SFDR, –96 dB THD
  • Built-In Conversion Clock (CCLK)
  • 1.65 V to 1.5×(+VA) I/O Supply
    • SPI/DSP Compatible Serial
    • SCLK up to 50 MHz
  • Comprehensive Power-Down Modes:
    • Deep Power-Down
    • Nap Power-Down
    • Auto Nap Power-Down
  • Unipolar Input Range: 0 V to VREF
  • Software Reset
  • Global CONVST (Independent of CS)
  • Programmable Status/Polarity EOC/INT
  • 16-Pin 4×4 QFN or 16-Pin TSSOP Packages
  • Multi-Chip Daisy Chain Mode
  • Programmable TAG Bit Output
  • Auto/Manual Channel Select Mode
  • APPLICATIONS
    • Communications
    • Transducer Interface
    • Medical Instruments
    • Magnetometers
    • Industrial Process Control
    • Data Acquisition Systems
    • Automatic Test Equipment

    Parametrics

    Compare all products in Precision ADCs (<=10MSPS) Email Download to Excel
    Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) SNR (dB) THD (Typ) (dB) Rating
    ADS8328 Order now 16     500     2     SPI     -40 to 85     QFN | 16
    TSSOP | 16    
    6.00 | 1ku     10.6     16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    SAR     Single-Ended     Multiplexed     Ext     Daisy-Chainable
    Oscillator    
    5.5     0     2.7     5.5     1.65     5.5     2     91     -98     Catalog    
    ADS7229 Samples not available 12     1000     1     Serial     -40 to 85     QFN | 16
    TSSOP | 16    
    2.30 | 1ku     13.7     16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    SAR     Single-Ended         Ext     Daisy-Chainable
    Oscillator    
    5.5     0     2.7     5.5     1.65     5.5     0.5     73.9     -88.5     Catalog    
    ADS7230 Order now 12     1000     2     Serial     -40 to 85     QFN | 16
    TSSOP | 16    
    3.15 | 1ku     13.7     16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    SAR     Single-Ended     Multiplexed     Ext     Daisy-Chainable
    Oscillator    
    5.5     0     2.7     5.5     1.65     5.5     0.5     73.9     -88.5     Catalog    
    ADS7279 Order now 14