Analog Devices Inc. AD4682 & AD4683 16-Bit SAR ADCs

Analog Devices Inc. AD4682 & AD4683 16-Bit SAR ADCs are 16-bit successive approximation register (SAR), analog-to-digital converters (ADCs). The devices are pin-compatible with dual, and simultaneous sampling. They feature high speed, low power, and operate from a 3.0V to 3.6V power supply. The ADCs feature throughput rates up to 1MSPS for the AD4682 and 500kSPS for the AD4683. The analog input type is pseudo-differential and is sampled and converted on the falling edge of CS. Integrated on-chip oversampling blocks improve dynamic range and reduce noise at lower bandwidths. A buffered internal 2.5V reference is included. Alternatively, an external reference up to 3.3V can be used.


  • Dual 16-bit ADC family
  • Dual simultaneous sampling
  • Pseudo-differential analog inputs
  • Throughput conversion rate
    • 1MSPS for the AD4682
    • 500kSPS for the AD4683
  • SNR (typical)
    • 87.5dB, VREF = 3.3V external
    • 93.4dB with RES = 1 and OSR = ×8
  • On-chip oversampling function
  • Alert function
  • Resolution boost function
  • INL error (maximum): 2.5 LSBs
  • 2.5V internal reference
  • High-speed serial interface
  • −40°C to +125°C operation
  • 3mm × 3mm, 16-lead LFCSP


  • Motor control position feedback
  • Motor control current sense
  • Sonar
  • Power quality
  • Data acquisition systems
  • Erbium-doped fiber amplifier (EDFA) applications
  • Inphase (I) and quadrature (Q) demodulation


Analog Devices Inc. AD4682 & AD4683 16-Bit SAR ADCs
Published: 2020-12-15 | Updated: 2022-03-11