AD7768-4 Datasheet | Analog Devices

FEATURES - Precision ac and dc performance - 8-/4-channel simultaneous sampling - 256 k SPS maximum ADC ODR per channel - 108 d B dynamic range - DC to 110.8 k Hz maximum input bandwidth (- 3 d B bandwidth) - - 120 d B THD, typical - ±2 ppm of full-scale range (FSR) integral nonlinearity (INL), ±50 µV offset error, ±30 ppm of FSR gain error - Optimized power dissipation vs. noise vs. input bandwidth - Selectable power, speed, and input bandwidth - Fast (highest speed): 110.8 k Hz bandwidth, 51.5 m W per channel - Median (half speed): 55.4 k Hz bandwidth, 27.5 m W per channel - Low power (lowest power): 13.8 k Hz bandwidth, 9.375 m W per channel - Per channel digital filter - Programmable input bandwidth/sampling rates - CRC error checking on data interface - Daisy-chaining FUNCTIONAL BLOCK DIAGRAM - Linear phase digital filter - Low latency sinc5 filter - Wideband brick wall filter: ±0.005 d B pass band ripple to 102.4 k Hz - Analog input precharge and reference precharge buffers - Power supply - AVDD1 = 5.0 V, AVDD2 = 2.25 V to 5.0 V - IOVDD = 2.5 V to 3.3 V or IOVDD = 1.8 V - 64-lead LQFP, no exposed pad - Temperature range: - 40°C to +105°C APPLICATIONS - Data acquisition systems: USB/PXI/Ethernet - Instrumentation and industrial control loops - Audio testing and measurement - Vibration and asset condition monitoring - 3-phase power quality analysis - Sonar - High precision medical electroencephalogram (EEG)/electro- myography (EMG)/electrocardiogram (ECG) Figure 1. Rev. C DOCUMENT FEEDBACK TECHNICAL SUPPORT Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their...