Analog Devices Inc. AD7616 ADCs

Analog Devices Inc. AD7616 ADCs are 16-bit Data Acquisition Systems (DASs) that supports dual simultaneous sampling of 16 channels. These ADCs feature a 16-bit charge redistribution SAR ADC, flexible digital filter, 2.5V reference and reference buffer, serial and parallel interfaces, and analog input clamp protection. The input clamp protection circuitry can withstand voltages of up to 21V. The AD7616 ADCs can accommodate ±10V, ±15V, and ±2.5V true bipolar input signals while sampling at throughput rates of up to 1MSP per channel pair. These ADCs achieve higher SNR performance of up to 90.5dB using the on-chip oversampling mode. The 5V single-supply operation, on-chip filtering, and high input impedance eliminate the need for driver op-amps and external bipolar supplies. Typical applications include power line monitoring, protective relays, multi-phase motor control, DASs, instrumentation, and control systems.


  • 16-channel dual simultaneously sampled inputs
  • Independently selectable channel input ranges:
    • ±10V, ±5V, and ±2.5V true bipolar
  • Single 5V analog supply and 2.3V to 3.6V VDRIVE supply
  • Fully integrated data acquisition solution:
    • Analog input clamp protection
    • Input buffer with 1MΩ analog input impedance
    • First-order anti-aliasing analog filter
    • On-chip accurate reference and reference buffer
    • Dual 16-bit Successive Approximation Register (SAR) ADC
    • 2x 1MSPS throughput rate
    • Oversampling capability with digital filter
    • Flexible sequencer with burst mode
  • Flexible parallel/serial interface:
    • SPI/QSPI/MICROWIRE/DSP compatible
    • Optional Cyclic Redundancy Check (CRC) error checking
  • Hardware/software configuration
  • Performance:
    • 92dB SNR @ 500kSPS (2x oversampling)
    • 90.5dB SNR @ 1MSPS
    • -103dB THD
    • ±1LSB INL (typical) and ±0.99LSB DNL (maximum)
    • 8kV ESD rating on analog input channels
  • On-chip self detect function
  • 80-lead LQFP package


  • Power line monitoring
  • Protective relays
  • Multi-phase motor control
  • Instrumentation and control systems
  • Data Acquisition Systems (DASs)

Block Diagrams

Published: 2019-05-20 | Updated: 2022-03-10