ADS8555 16-Bit 6-Channel Simultaneous-Sampling ADC |

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16-Bit 6-Channel Simultaneous-Sampling ADC



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.


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