Hey All,
I have a question regarding the use of a single supply to an operational amplifier. My device is controlled by a Teensy 3.6 and I am planning on using a boost circuit (Figure 1) to boost the 5V pin from the Teensy to 16V and then regulate that voltage using a 12V linear regulator to ensure the supply voltage is as clean as possible.
The OP-AMP is setup as a trans-impedance amplifier for my photo-diode. As the Teensy 3.6 can only receive 3.3V MAX on the analog pins I am using a voltage divider on the output to transform the MAX 12V output to 3.3V (Figure 2). I don't want to use the 5V pin directly as I would like to get a higher measuring range from the photo-diode without saturating the detector (hence the 12V reg).
What I am wondering is whether or not what I am doing is good practice/correct or if there is a better way of getting a higher amount of measuring range from the Photodiode.
Thank you
