Practical 4-channel ADC [140169]

The assembled module is available in our shop.

Following a project we did (130485) that involved an ADS1115 "Ultra-Small, Low-Power, 16-Bit Analog-to-Digital Converter with Internal Reference" from Texas Instruments, we decided to design a more universal board around this chip. Some sort of generic front end for slow (<1kHz) but precise data acquisition (DAQ) systems.

The specifications we start with are (more may be added later):

• 4 identical channels
• inputs protected against overvoltage and overcurrent
• I²C output
• I²C address programmable with jumpers as the chip allows
• practical PCB design that can be easily added to a microcontroller system, like a break-out board (BoB)
• pin header for the inputs

Any ideas are welcome. Post a contribution or send mail with your suggestions to labs at elektor dot com.

This project has been published in Elektor Magazine.