AD7616-PBSTZ

数据采集ADC/DAC – 专业 100ksps 16 ch muxed Dual 16B SAR ADC

Product Details

The AD7616-P is a 16-bit, DAS that supports dual simultaneous sampling of 16 channels. The AD7616-P 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 signal-tonoise ratio 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 tolerates voltages up to ±21 V. The AD7616-P 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 successive approximation register SAR analog-to-digital converter ADC, a flexible digital filter, a 2.5 V reference and reference buffer, and a high speed parallel interface.

Applications

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Power line monitoring

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Protective relays

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Multiphase motor control

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Instrumentation and control systems

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Data acquisition systems DASs

### Features and Benefits

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16-channel, dual, simultaneously sampled inputs

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Independently selectable channel input ranges

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True bipolar: ±10 V, ±5 V, ±2.5 V

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Single 5 V analog supply and 2.3 V to 3.6 V VDRIVE supply

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Fully integrated data acquisition solution

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Analog input clamp protection

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Input buffer with 1 MΩ analog input impedance

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1st-order antialiasing analog filter

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On-chip accurate reference and reference buffer

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Dual 16-bit SAR ADC

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Throughput rate: 2 × 1 MSPS

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Oversampling capability with digital filter

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Flexible sequencer with burst mode

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Parallel digital interface

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Optional CRC error checking

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Hardware/software configuration

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Performance

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92 dB SNR at 500 kSPS 2× OSR

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90.5 dB SNR at 1 MSPS

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−103 dB THD

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±1 LSB INL typical, ±0.99 LSB DNL maximum

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8 kV ESD rating on analog input pins

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On-chip self detect function

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80-lead LQFP package