AD7616 16 -Channel DAS with 16-Bit, Bipolar Input, Dual Simultaneous Sampling ADC
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.
■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
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16 -Channel DAS with 16-Bit, Bipolar Input, Dual Simultaneous Sampling ADC |
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[ Power line monitoring ][ Protective relays ][ Multiphase motor control ][ Instrumentation and control systems ][ Data acquisition systems (DASs) ] |
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Datasheet |
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Please see the document for details |
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ST-80-2;LQFP |
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English Chinese Chinese and English Japanese |
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10/16 |
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Rev.0 |
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D13591-0-10/16(0) |
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2.8 MB |
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