Product Details
●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)
●### Features and Benefits
● 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
