ADI AD7616BSTZ-RL

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. 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

• 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 V_DRIVE 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: 2×7 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

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