ADS8555 16-Bit 6-Channel Simultaneous-Sampling ADC | TI.com

ADS8555 (ACTIVE)

16-Bit 6-Channel Simultaneous-Sampling ADC

 

Description

The ADS8555 device contains six low-power, 16-bit, successive approximation register (SAR)-based analog-to-digital converters (ADCs) with true bipolar inputs. Each channel contains a sample-and-hold circuit that allows simultaneous high-speed multi-channel signal acquisition.

The ADS8555 device supports data rates of up to 630 kSPS in parallel interface mode or up to 450 kSPS if the serial interface is used. The bus width of the parallel interface can be set to eight or 16 bits. In serial mode, up to three output channels can be activated.

The ADS8555 device is specified over the extended industrial temperature range of –40°C to 125°C and is available in an LQFP-64 package.

Features

  • Six SAR ADCs Grouped in Three Pairs
  • Maximum Data Rate Per Channel With Internal Clock and Reference: 630 kSPS (Parallel) or 450 kSPS (Serial)
  • Maximum Data Rate Per Channel With External Clock and Reference: 800 kSPS (Parallel) or 500 kSPS (Serial)
  • Pin-Selectable or Programmable Input Voltage Ranges: Up to ±12 V
  • Excellent AC Performance: 91.5-dB SNR, –94-dB THD
  • Programmable and Buffered Internal Reference: 0.5 V to 2.5 V and 0.5 V to 3 V
  • Comprehensive Power-Down Modes:
    • Deep Power Down (Standby Mode)
    • Auto-Nap Power Down
  • Selectable Parallel or Serial Interface
  • Operating Temperature Range: –40°C to 125°C
  • LQFP-64 Package

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  • APPLICATIONS
    • Power Quality Measurements
    • Protection Relays
    • Multi-Axis Motor Controls
    • Programmable Logic Controllers
    • Industrial Data Acquisition
  • View more

    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
    ADS8555
    16    
    630    
    6    
    Parallel
    SPI    
    -40 to 125    
    LQFP | 64    
    10.36 | 1ku    
    335    
    64LQFP: 144 mm2: 12 x 12 (LQFP | 64)    
    SAR    
    Single-Ended    
    Simultaneous Sampling    
    Ext
    Int    
    Daisy-Chainable
    Oscillator    
    12    
    -12    
    4.5    
    5.5    
    2.7    
    5.5    
    3    
    89.5    
    91.5    
    -94    
    Catalog    

    Design tool

    WEBENCH® Designer ADS8555