Unanswered Questions

I've been working on a project recently, where I need to build a device which detects gamma radiation and can be used for gamma spectroscopy. I've done some research and found many interesting ways of ...

I haven't used/seen this type of op-amp depiction before, so I'm having trouble understanding it. The research paper (linked below) says that this is an AD844AN chip, but even after looking through ...

The goal is to drive a low power LED at a very high frequency, with pulses of ~10-100ns width in order to produce a very narrow burst of light. The pulses do not need to be closely packed together, ...

I am trying to derive the closed-loop gain of a basic Inverting Op-Amp circuit using nodal analysis and the model that includes its non-ideal parameters. The equation I derived is incorrect, and it's ...

My AC electronic load (previous question here) shall have a constant-current mode. It is being simulated in LTspice. @devnull helped design the circuit for AC loads, but for simplicity's sake in the ...

I'm looking at an audio amplifier integrated circuit and the output stage seems a bit unusual. Has anyone seen this style of output stage, and does it have a name? And can anyone fill in the details ...

Problem Statement: my aim is to digitalize a 10ns narrow pulse coming from a photo diode with current ranging from 10nA-70mA, as its impossible to cover this dynamic range of >60dB using a single TIA ...

I'm developing the compensator for the linear DC Bench Power Supply I'm designing. As I've come to deriving the transfer function for the op amp-based compensator, I realize I've been depending on a ...

I am designing a basic 100kHz active bandpass filter using opamps (LF353). I am only interested in receiving the 100kHz frequency (might drift a few kHz) from my input signal. I have used a basic ...

EDITS: Input voltage range: 24V to 48V. Changing the load current from 0.38A to 1.018A increases the mean output voltage from 12.779V to 13.26V. The supply should be producing 12.5V. I'm using this ...

\$\newcommand{\parallelsum}{\mathbin{/\mkern-8mu/}}\$I'm curious about the difference between these two topologies of differential amplifiers. I know that for the first one (the 5 transistor topology) ...

In the standard log amplifier (op-amp with BJT in feedback, resistor \$R_1\$ at the input), I modeled the op-amp input offset as a small DC source \$V_{OS}\$ at the non-inverting input. Assume \$V_{in}...

(Image from "All About Circuits" basic-amplifier-configurations-non-inverting-amplifier) I am building this circuit with the TLV9061 op amp, but due to some space restrictions, I have to ...

I have a first order differential equation with initial value problem: $$ \frac{dy}{dt} =\frac{a}{b} \cdot x(t) - c \cdot y(t) $$ with initial values of $$ y(0) = (\frac{a}{b} \cdot c) \cdot x(0) $$ ...

If I'm not wrong, an opamp circuit's feedback resistor and capacitor dictates the response time of it. So in case we have the control over Rf and Cf we can set the response time. But in that case, ...