8/22/2023 0 Comments Proteus 8 ltc2440 library![]() "Arduino UNO, Using precision ADCs and DACs". ![]() The 18-bit LTC2400 ADC (24 bit at 5 samples per second) and I see from the Arduino blog and other sites that people have connected some even higher resolution ADCs to an to an Arduino board, including The Arduino playground has a brief tutorial describing connecting a 12-bit ADC MCP3208 or a 13-bit ADC MCP3304 to an Arduino. ![]() You'll want to read the ADC datasheet - some of them, and so far all the microcontrollers I've seen that claim to have a built-in "16 bit ADC", have an effective number of bits (ENOB) worse than the 13.9 ENOB you need at the sampling rates I typically use.Īdafruit has a very nice tutorial describing how to connect the 12-bit ADC ADS1015 or the 16-bit ADC ADS1115 to an Arduino. I don't know any way to make such high-resolution measurements other than using a dedicated external ADC chip. ![]() Most ADCs pretty much require some sort of op-amp or differential amplifier between such low-level input signals and the ADC input pins.Ī few ADCs have a differential amplifier already built in - that makes things a lot easier to get working, but I don't know if any of such ADC available would meet the other requirements of your project. Yes, if you have a 0 to 30 mV signal that you need to measure to an accuracy of 2 microvolts, you'll need an ADC with an effective number of bits (ENOB) of at least 13.9 bits and an amplifier to make the signal to match the range accepted by the ADC. ![]()
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