opamp

Hello, I've read something about a rail-to-rail opamp on the internet and I want to design one, just the soft part, and I am not sure if I get some things right. For example: Let's assume that my Supply Voltages are Vss = -5 V and Vdd=5 V In a rail-to-rail op amp I need my input to be anywhere...

This may be novice question. I am understanding SAR ADC specification for modeling perspective. In the mean time I was following analog devices Driving SAR ADC. In general what the necessity for a driver when it matches T acq and T cov of the selected ADC datasheet? What else test situation or...

I have a common inverting integrators made using opamp (capacitor in negative feedback, +input to GND). I would like to have all these integrators saturate at the same exact voltage. Adding a zener diode in parallel to the cap works, but zeners are 2% tolerance at best and temperature dependent...

Hello, In my design I need to buffer about 45V-48V and about 30V. For this purpose I want to use two Opamps in Unity Gain Configuration and chose to use 2 ADA4522 (since it has an input range of 0-55V and low a low offset voltage, see attached schematic). In the simulation the buffer circuit...

Hi i am referring one opamp based design (designed by friend of mine)where two op amps are used. one in inverting configuration and other one is in non-inverting configuration. i am bit confused what would be the purpose of using two op amps together? here is attached schematic. (Here R4 is...

Hey, so I've got to build the circuit to output the signal specified below I've currently got an Arduino UNO and I have written the code to output this. however, I can only put out 5v from my Arduino and the circuit requires 12V and 10V output, being able to switch between12 and 0v incredibly...

Hello, I am new to hardware design. I am designing measurement circuit for Impedance Spectroscopy of electrochemistry cell. I need to measure the current coming from electrodes which have range from few milliamperes to few nanoamperes. as literature suggested, the equivalent circuit for...

I have a question about signal conversion since I am pretty new to this. I want to translate a 4-20mA signal into a 0-3.3V digital signal. I have done a lot of research and came up with a circuit, but i am unsure if this is possible / correct. My idea was to use a Transimpedance amplifier to...