ADS8555

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design ADS8555 SBAS531D – DECEMBER 2010 – REVISED FEBRUARY 2016 ADS8555 16-Bit, Six-Channel, Simultaneous Sampling Analog-to-Digital Converter Signal-to-Noise Ratio (dB) 1 Features 1 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 2 Applications Power Quality Measurements Protection Relays Multi-Axis Motor Controls Programmable Logic Controllers Industrial Data Acquisition SNR vs Temperature 94 92 90 88 86 84 82 80 78 AVDD = BVDD = 5V HVSS = -15V, HVDD = 15V 76 fSIGNAL = 10kHz, fDATA = Max 74 Range = ±4 ´ VREF 72 Internal Reference 70 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (°C) 3 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 con...