ADS8556 Datasheet | Texas Instruments

Features - 1 Family of 16-, 14-, 12-Bit, Pin- and Software-patible ADCs - Six SAR ADCs Grouped in Three Pairs - Maximum Data Rate Per Channel with Internal Conversion Clock and Reference: ADS8556: 630 k SPS (PAR) or 450 k SPS (SER) ADS8557: 670 k SPS (PAR) or 470 k SPS (SER) ADS8558: 730 k SPS (PAR) or 500 k SPS (SER) - Maximum Data Rate with External Conversion Clock and Reference: 800 k SPS (PAR) or 530 k SPS (SER) - Pin-Selectable or Programmable Input Voltage Ranges: Up to ±12 V - Excellent Signal-to-Noise Performance: ADS8556: 91.5 d B, ADS8667: 85 d B, ADS8668: 73.9 d B - Programmable and Buffered Internal Reference: 0.5 V to 2.5 V and 0.5 V to 3.0 V - prehensive Power-Down Modes: - Deep Power-Down (Standby Mode) - Partial Power-Down - Auto-Nap Power-Down - Selectable Parallel or Serial Interface - Operating Temperature Range: - 40°C to 125°C Block Diagram HVDD HVSS AVDD BVDD CH_A0 AGND CONVST_A REFC_A CH_A1 AGND CH_B0 AGND CONVST_B REFC_B CH_B1 AGND CH_C0 AGND CONVST_C REFC_C CH_C1 AGND Clock Generator SAR ADC SAR ADC SAR ADC SAR ADC SAR ADC SAR ADC Control Logic Config Register I/O BUSY/INT RANGE/XCLK HW/SW REFEN/WR STBY RESET CS/FS RD DB[15:0] WORD/BYTE PAR/SER 2 Applications - Power Quality Measurement - Protection Relays - Multi-Axis Motor...