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PlainDAQ: Simple open source DAQ module for Raspberry Pi Pico (schematic, source code, etc.)

Overview

PlainDAQ is a simple, useful tool that adds basic precision analog functionality to your Raspberry Pi Pico board. It features a precision, low noise, low drift 12-bit 500k sps/s ADC. To match the ADC and maintain its noise and accuracy, all analog inputs are buffered and the ADC is driven by a high speed/low noise fully differential amplifier. It also has a 10-bit DAC that helps create analog outputs and waveforms.

PlainDAQ generates ±5 V voltages to provide bipolar supplies that are often difficult to generate. To support all these features, PlainDAQ includes a stable voltage reference with 20 ppm/°C drift. Each plainDAQ is calibrated using the DMM7510 before shipment and can be calibrated using appropriate equipment with the help of an onboard EEPROM for storing calibration data.

A DAQ device wouldn't be complete without some kind of wireless communication, so we also offer a BLE option for regular DAQ devices.

Design Files

PlainDAQ

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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