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AD7616BSTZThe AD7616 is a 16-bit, DAS that supports dual simultaneous sampling of 16 channels.
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Description
GENERAL DESCRIPTION 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 MΩ 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. Parameters
FEATURES 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 All the evaluation(0)
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