An ADC released by Analog Devices provides single configurable and reuseable data acquisition footprint for AC and DC signals.

The AD7768-1 is a low power, high-performance, 24-bit single channel sigma-delta ADC. It enables power efficient instrumentation solutions for condition monitoring in predictive maintenance (vibration and power quality), audio test, acoustic, structural health and modular automated electrical test equipment, says ADI. Healthcare applications such as clinical EEG/EMG/ECG are also enabled.

The AD7768-1 provides a single configurable and reusable data acquisition footprint, which can service multiple measurement variants, both in channel-to-channel isolated and non-isolated applications. Analog Devices points out that a single converter serving the various equipment platforms, performance points and measurement ranges reduces the number of reference designs, reducing costs and time to market.

The AD7768-1 includes a power scalable sigma delta modulator and digital filter to enable synchronised, high-fidelity measurement of AC and DC signals in instrumentation. High throughput and 110.8kHz input bandwidth also deliver test cost and time reduction for test measurements.

The AD7768-1 has digital filtering capabilities which can be selected for a range of system requirements catering to high accuracy frequency domain measurements and low latency DC input measurement. The ADC also provides an integrated pre-charge buffer on each analogue input, greatly simplifying the design of external driver circuitry. A full buffer input on the reference delivers a high impedance input for any external reference.

The 24-bit AD7768-1 is claimed to deliver the industry’s best integral non-linearity (INL) and lowest distortion performance across the widest available bandwidth.  It also achieves 20 times better offset drift, 40 times reduction in gain error, and a three-times improvement in gain drift over alternative products.

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