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Mi-3083-01-001-a High Resolution Daq Datasheet Page1

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MI 3083 HR-DAQ Marine Innovation Electronics & Control Systems High Resolution Acquisition Board Description: The Marine Innovation High Resolution Acquisition board is an analog input module with a very low noise amplifier and a high resolution ADC. Both component selection and circuit board design have been done in order to deliver measurements with the lowest possible noise. The acquisition board is galvanic isolated and has its own low noise power supply. Analog and digital/power parts of the board are divided and shielded. A relay on the input allows the analog board to perform its own offset calibration and thereby eliminating offset errors from both the ADC and the input amplifier. Speci�ications MI – Highres. Acquistion board Min Typ Number of channels 1 ADC resolution 24 Type of ADC Unit 311 bits Delta-Sigma Overvoltage protection Input voltage range2 Max V +/- 36 +/-250m Input coupling +/-20 Vp-p DC Input con�iguration Differential Input impedance ohm 200k 1 64 (1, 2, 4, 8, 16, 32, 64 x gain is possible) Input noise3 0.25 20 uVrms Gain drift +/- 3 ppm Offset drift T.B.D 12 V Input power 700 mW Galvanic isolation voltage rating 1 1000 31bit output is possible Depends on preamplifier gain set-up 3 WWW.MAR-IN.NO Depends on gain set up and sampling rate [email protected] [email protected] Input voltage www.mar-in.no Programmable gain V rms 2 +47 406 48 400 Marine Innovation Electronics & Control Systems MI 3083 HR-DAQ High Resolution Acquisition Board Typical application: The acquisition board can be used stand alone with an SPI-interface to a computer, but is mainly intended for embedded data acquisition systems. The isolated SPI and control signals allow for easy integration to microcontrollers or FPGA’s The figure below shows a typical application for the high resolution module. For measurements that requires deterministic timing an FPGA combined with the PPS signal from a GPS can provide us timing accuracy. The number of input channels can be scaled to the applications. GPS for positioning and timing Analog input MI High Resolution Acquistion board Analog input MI High Resolution Acquistion board Highspeed USB SPI and control FPGA or uP/DSP Flashdisk Storage Analog input MI High Resolution Acquistion board Battery or external power [email protected] www.mar-in.no [email protected] Computer Interface