I came across this circuit in the ADS1115 datasheet , and if combined with this shunt resistor and this OP AMP
make a good load current tester, if anyone is interested.
The ADS1115 has Differential Mode and Programmable Gain.
Many of the Atmega chips (but not the Atmega 328) have differential ADC and internal amplifiers - for example the Atmega 2560.
...R
Many of the Atmega chips (but not the Atmega 328) have differential ADC and internal amplifiers - for example the Atmega 2560.
Right, but are they 16-bit and have programmable gain and adjustable sample time ?
raschemmel:
Right, but are they 16-bit and have programmable gain and adjustable sample time ?
As you well know the Atmega chips have 10 bit ADCs and the sample interval is in the hands of the programmer. IIRC there are a few amplification factors to choose from.
I posted Reply #1 because these capabilities are not part of the Arduino toolkit and people may not be aware that they exist. And the internal facilities may be sufficient for some users.
...R