ADS8860 - Texas Instruments

ADS8860 SAR Analog-to-Digital Converter

The ADS8860 is a 16-bit, 1-MSPS, single-ended input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD). The device offers an SPI-comp.

Features

•1 Sample rate: 1 MHz
• No latency output
• Unipolar, single-ended input range: 0 to +VREF
• SPI™-compatible serial interface with daisy-chain option
• Excellent AC and DC performance:
  – SNR: 93 dB, THD:
  –108 dB
  – INL: ±1.0 LSB (typ), ±2.0 LSB (max)
  – DNL: ±1.0 LSB (max), 16-bit NMC
• Wide operating range:
  – AVDD: 2.7 V to 3.6 V
  – DVDD: 1.65 V to 3.6 V (independent of AVDD)
  – REF: 2.5 V to 5 V (independent of AVDD)
  – Operating temperature:
  –40°C to +85°C
• Low-power dissipation:
  – 5.5 mW at 1 MSPS
  – 0.55 mW at 100 kSPS
  – 55 µW at 10 kSPS
• Power-down current (AVDD): 50 nA
• Full-scale step set.