Renesas Solution Starter Kit for RX23E-A: ADC Measurement

RE: Renesas Solution Starter Kit for RX23E-A: ADC Measurement

Jan Cumps — Mon, 10 Jul 2023 20:24:16 GMT

First low-noise attempt:

Power supplied by a 9 V battery, going through the LDO. The device under test is a fresh 1.5 V AA battery

I put the test setup in an alu foil house. The USB cable - used to communicate with the PC Tool - is the only thing going out of the box.

I get 18 effective bits:

DAB — Thu, 29 Jun 2023 19:50:54 GMT

Nice post Jan.

Jan Cumps — Thu, 29 Jun 2023 19:49:38 GMT

for the next post:

10 Hz,
1 Vdc,
1mVpp

michaelkellett — Thu, 29 Jun 2023 13:40:15 GMT

The peak to peak noise seems to be about 9bits which isn't that bad for a 24 bit converter with no screening.

The DC measurement error seems very good - about 0.06%.