AD7616

PRODUCTION

16-Channel DAS with 16-Bit, Bipolar Input, Dual Simultaneous Sampling ADC

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Overview

  • 16-channel, dual, simultaneously sampled inputs
  • Independently selectable channel input ranges
    • True bipolar: ±10 V, ±5 V, ±2.5 V
  • Single 5 V analog supply and 2.3 V to 3.6 V VDRIVE supply
  • Fully integrated data acquisition solution
    • Analog input clamp protection
    • Input buffer with 1 MΩ analog input impedance
    • First-order antialiasing analog filter
    • On-chip accurate reference and reference buffer
    • Dual 16-bit successive approximation register (SAR) ADC
    • Throughput rate: 2 × 1 MSPS
    • 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
    • 92 dB SNR at 500 kSPS (2× oversampling)
    • 90.5 dB SNR at 1 MSPS
    • −103 dB THD
    • ±1 LSB INL (typical), ±0.99 LSB DNL (maximum)
    • 8 kV ESD rating on analog input channels
  • On-chip self detect function
  • 80-lead LQFP package

The AD7616 is a 16-bit, DAS that supports dual simultaneous sampling of 16 channels. The AD7616 operates from a single 5 V supply and can accommodate ±10 V, ±5 V, and ±2.5 V true bipolar input signals while sampling at throughput rates up to 1 MSPS per channel pair with 90.5 dB SNR. Higher SNR performance can be achieved with the on-chip oversampling mode (92 dB for an oversampling ratio (OSR) of 2).

The input clamp protection circuitry can tolerate voltages up to ±21 V. The AD7616 has 1 MÙ analog input impedance, regardless of sampling frequency. The single-supply operation, on-chip filtering, and high input impedance eliminate the need for driver op amps and external bipolar supplies.

The device contains analog input clamp protection, a dual, 16-bit charge redistribution SAR analog-to-digital converter (ADC), a flexible digital filter, a 2.5 V reference and reference buffer, and high speed serial and parallel interfaces.

The AD7616 is serial peripheral interface (SPI)/QSPI™/DSP/ MICROWIRE compatible

Applications

  • Power line monitoring
  • Protective relays
  • Multiphase motor control
  • Instrumentation and control systems
  • Data acquisition systems (DASs)

AD7616

16-Channel DAS with 16-Bit, Bipolar Input, Dual Simultaneous Sampling ADC

AD7616 Functional Block Diagram AD7616 Pin Configuration
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Software Resources


Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
EVAL-AD7616

AD7616/AD7616-P Evaluation Board

Features and Benefits

  • Full featured evaluation board for the AD7616 and AD7616-P
  • On-board power supplies 
  • Standalone capability 
  • SDP-B controller board-compatible 
  • PC software for control and data analysis 
 

Product Details

The EVAL-AD7616SDZ/EVAL-AD7616-PSDZ is a single, full featured evaluation board designed to easily evaluate all features of both the AD7616 and AD7616-P analog-to-digital converters (ADCs). The evaluation board can be controlled by the EVALSDP-CB1Z via the 120-way high speed system demonstration platform (SDP-B) connector (J10). The EVAL-SDP-CB1Z SDP-B board controls the evaluation board through a USB port of a PC using the evaluation board software, which is available for download from the AD7616 and AD7616-P product pages.

Complete specifications for the AD7616 and AD7616-P devices are provided in the AD7616 and AD7616-P data sheets and should be consulted in conjunction with this user guide when using the evaluation boards. Full details on the EVAL-SDP-CB1Z are available on the SDP-B product page.

EVAL-AD7616
AD7616/AD7616-P Evaluation Board
EVAL-AD7616SDZANGLE-web EVAL-AD7616SDZBOTTOM-web EVAL-AD7616SDZTOP-web

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