Section 5.3.1, Page 85, Table 17 has VDDA min for OPAMP as 1.8VSection 5.3.23, Page 166, Table 80 has VDDA min for OPAMP as 2VWhich is the correct value?I really hope it is 1.8V because that is what all my circuits are designed for...
Dear ST,I am trying to configure a voltage follower usin intenal op-amp for external voltage monitoring. And we are going to read that value through ADC.Therefore, it is necessary to select the resistance value of the voltage divider.So I want to kno...
I can successfully output an analog voltage on PA3 from DAC1 Channel 1 via OPAMP1 in follower mode. If I try to use PA4 as a GPIO output the analog voltage on PA3 disappears. Is this a known issue with this chip? Are there any workarounds?The referen...
For reference I have a nucelo G491RE board. Aim : I am trying to connect 4 sensors which have a low output signal to be amplified and then sampled by 2 ADCs (2 sensors are connected to one ADC). The problem is, is that I need a really high sampling r...
Hello friends!I have been messing around with the onboard opamp and here is the problem. When I configure it as the follower, things are okay, but as soon as I configure it as an AMP with PGA on and set any gain, I see quite dramatic DC shift on the ...
HelloI use the embedded Op Amp in STM32U585VIT3Q to charge a 47uF capacitor.The input of the Op Amp is connected to the output of DAC. The voltage level is 3V.So you can see when the Op Amp begin to charge the cap, the peak current is quite large.I w...
Application needs to use all three (in STM32G431) op amps as inverting PGA handling ac-coupled signals. As there's no internal option to supply mid-point (VREF/2 with a decoupling cap at the device pin) to the non-inverting inputs of the (3) op amps ...
