analog

I was going through the comparator topic and realised that it merely compares the input and the reference voltage. Is it necessary to use resistors along with the inputs in such a circuit? I cannot find any effect of these resistors on the circuit or the output yet it seems to be an elementary...

Hi all, I have this IC which creates a linear voltage ramp proportional to the input voltage based on the capacitor on the output in parallel to ground. I then have to do some analog computation using op amps. When I connect the output of this IC to an op-amp, the ramp is ruined. Is there any...

Hi, Looking for a 5 bit ADC but at the moment I can only find 6 bit ones online. Anyone know where I might be able to get ahold of a 5 bit ADC? Thanks!

Hi everybody, I'm taking a beginners DC circuitry course and I'm trying to learn on my own time about analog circuitry, something which has fascinated me for a while now. One of the things I'm trying to start with is, as the title states, a voltage follower, since this is (supposed to be) a...

I have a steel container utilized for beer fermentation, housing an iSpindel hydrometer sensor immersed in the liquid. This sensor transmits data through 2.4GHz WiFi. To enhance signal strength outside the vessel, would it be beneficial to affix two passive omni 2.4GHz antennas to the lid...

Is there any resistive humidity sensor that I can power with a dc voltage and with analog output not digital? I prefer araw sensor not a module.

Hi, On my board I am using SPI slave devices in the following configuration. when every there is an spi communication happening between controller and slave1, everything is good. whereas, during the communication between the controller and slave2 SPI_CLK line is dipping from 2.4 to...

I am using one machine (which has a small motor) which has battery of 1.2v which got dead and i want to change the power source to USB. The battery is of 1.2V and 400mAh. Motor connected to works perfectly fine if provide the 1.2V from bench power supply. I want to use USB power supply instead.

Hi, The CD4053B has only 3 identical bilateral analog spdt switches on it. Does anyone know of any chip that has more so I don't have to buy too many of these? Thanks.

What is the purpose of this circuit?

How to achieve an almost constant value of VBE through spice model? What does the VJE parameter do?

0-5 V to 4-20 mA linear conversion from voltage to current signal transmitter, this is the circuit I want to make. Materials used in the circuit: XTR101 BAT249 BD243 Level transmitter I am setting up the circuit, I get 5 V at the output without connecting the level transmitter. When I...

Please refer to the diagram below. BX is +110v or 0v. (not sure DC or AC) NX110 assumes -110v. (Maybe 0v? not sure DC or AC) Y2T is 110v DC relay with a part number of KUP-14D15-110. Its operate voltage is 82.5v. When BX is 110v, the relay coils pick up. Why the relay chatters when C1 is...

According to theory the time period for ramp signal generated using the following circuit should be: \[ \frac{2}{3} \frac{V_{CC}.C_{1}.R_{1}.(R_{1}+R_{2})}{V_{CC}.R_{2}-V_{BE}.(R_{1}+R_{2})} \] Now... putting the value of Vcc, R1, R2, VBE, RE... the time period comes out to be around 0.9ms. But...

Hey all, I am looking for some help to build an RF Modulator schematic from 1985. I was searching for a way to wirelessly transmit a UHF/VHF TV signal to an old portable TV I have and found a schematic on a website called Petlibrary (https://petlibrary.tripod.com/rfmod.htm). My idea was to use...

Hello! I am a student who would greatly appreciate some help determining the transfer function T(s) of a Fliege Notch Filter. I have attached a general schematic below, and have listed the values I will be using. To clarify, Voltage-in is the left side, and Voltage-out is the right side R1 =...

Hi, I have the speed which I can integrate using an op-amp to get the distance. I have a power output from a retro-reflective sensor when a certain point is passed. I was wondering if a device (capacitor maybe?) could store the distance traveled when it receives the power output from the...

I want to make a circuit that will convert a PWM signal to an analog signal. I want the circuit to be able to work on higher frequencies as well though (up to 15 kHz). Would an RC filter be the best method? Any reference design examples for this?