ADS8327 2.7V-to-5.5V 16-Bit 500kSPS Serial Analog-to-Digital Converter (ADC) | TI.com

ADS8327 (ACTIVE)

2.7V-to-5.5V 16-Bit 500kSPS Serial Analog-to-Digital Converter (ADC)

 

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

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    Parametrics Compare all products in Precision ADCs (<=10MSPS)

     
    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)
    SINAD (dB)
    SNR (dB)
    THD (Typ) (dB)
    Rating
    ADS8327 ADS7229 ADS7230 ADS7279 ADS7280 ADS8328 ADS8329 ADS8330
    16     12     12     14     14     16     16     16    
    500     1000     1000     1000     1000     500     1000     1000    
    1     1     2     1     2     2     1     2    
    SPI     Serial     Serial     Serial     Serial     SPI     SPI     SPI    
    -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    QFN | 16
    TSSOP | 16    
    6.05 | 1ku     2.30 | 1ku     3.15 | 1ku     4.20 | 1ku     4.96 | 1ku     6.00 | 1ku     7.20 | 1ku     7.60 | 1ku    
    10.6     13.7     13.7     13.7     13.7     10.6     13.2     13.2    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    16QFN: 16 mm2: 4 x 4 (QFN | 16)
    16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)    
    SAR     SAR     SAR     SAR     SAR     SAR     SAR     SAR    
    Differential
    Single-Ended    
    Pseudo-Differential
    Single-Ended    
    Pseudo-Differential
    Single-Ended    
    Pseudo-Differential
    Single-Ended    
    Pseudo-Differential
    Single-Ended    
    Differential
    Single-Ended    
    Differential
    Single-Ended    
    Differential
    Single-Ended    
       
       
    Multiplexed    
       
    Multiplexed     Multiplexed    
       
    Multiplexed    
    Ext     Ext     Ext     Ext     Ext     Ext     Ext     Ext    
    Daisy-Chainable
    Oscillator    
    Daisy-Chainable
    Oscillator    
    Daisy-Chainable
    Oscillator    
    Daisy-Chainable
    Oscillator