adc

Hey I need to measure some signals that can be maximum 15-20V. But my MCU work only with 3.3V. What is the best way to do that? I thought about resistors divider. there are more ideas ? I want that the samples will be clear without noise. Thank you Very much

Hi everyone, I am not sure if the post should be here or in DSP. So, I try first here. I want to understand using the K-path sampling according to the book of MSD of Jacob Baker, but I am struggling to get the concept. Question 1: the equation numbered 1 seems strange for me as I would write ...

Hello everyone, I am trying to understand the sinusoidal Histogram method, but I have few problems understanding the total thing. I will ask only a couple of questions: 1_ does the sinusoidal first generate an histogram for a perfect sinusoid for an ADC where we calculate the amplitude ...

Hello, I am working on a project that is supposed to measure the water depth using a water level sensor connected to an analog input pin of an IO controller (10bit ADC, Analog Input resolution – 10mV). Following are the set of parameters available to me uint8_t max_vdd = 5...

Hello there, I've been try to learn how sigma-delta ADC works, I've been through the block diagram mostly and tried simulating one myself by following this video lecture from "The signal path" channel, the wiring is right as it shows in the circuit diagram( from timeframe 34:30 ) and it also...

Hi, I'm working on a setup with a filter and some electronics to get an analog signal ready for a ST microcontroller (STM32H723VG). I want to simulate everything, even the part inside the microcontroller that handles the signal. But the problem is, I can't find the info I need in the...

This question might be ambiguous as I am not sure what I do not know . I have been reading about the quantisation error which is considered as standard deviation too. 1-the quantization error is calculated as the rms value of : \[ P_{\text{noise}} = \frac{\text{V_FS}^2}{12 \times 2^{2n}} \]...

Hello, I'm looking for some advice on a project I'm doing and more specifically the best microcontroller to approach this. I've tried an approach already but reached a number of hurdles and need to return to square one. The project is a physical desktop intercom which takes only a power...

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!

AD9625 is 12-Bit, 2.6 GSPS/2.5 GSPS/2.0 GSPS, 1.3 V/2.5 V Analog-to-Digital Converter. There are eight lanes to output the digital data. The lanes are SERDOUT[0]± to SERDOUT[7]±. What is the output data rate on each lane ?

Hey all, I was wondering if someone could point me to a component that fits this description. Id like a USB that plugs directly into a computer with voltage terminals and converts it into a digital representation that has existing support in a programming language to easily read in the data. The...

Hello, I have recently bought a Raspberry Pi Codec Zero to do audio processing. I have gone through all the documentation and set up all the necessary settings. When I run my codes, I get no input. So my questions are; How can you get access directly to the ADC? Maybe the ADC may have a way to...

wlpThis circuit is a low side current measurement of a motor using a shunt resistor and adc of a mcu. However, I do not understand the reason or use for the 100k internal pull down resistor, 10k external serial resistor and the capacitor. Anyone can help?

I am trying to convert 4-20 mA current loop signal to 0-3.3/0-3 V output for my 10 bit ADC IC that is connected to a Raspberry pi 3B+. Schematic: The input sensor is a 12 V loop powered 4-20 mA output humidity sensor. The op-amp is an MCP6002 rail-to-rail. The output of the op-amp is...

Hi All, We are busy with a project that takes measurements from a Current Transformer (CT) to track current usage in attached appliances. The CT is connected through an amplifier circuit to a micro-controller ADC pin. The AC wave (positive cycle only) is sampled at 100us intervals (there are a...

Hi, I have a code that uses 1.1Vref (because the system is powered by battery) (ATTINY44A IC). I have connected one sensor to it and now i would like to read value of the sensor. Please check the code below. This code uses internal reference voltage and outputs unchanged voltage rating.(THE...

The original sketch was built to use an NTC Thermistor to monitor a remote mountaintop shack's ambient temperature ... this has been in operation for over 3 years ... we recently added some batteries with a Victron BP65 over/under voltage device ... because Victron doesn't provide an API for...

Hello! My plan is to create a circuit, which would effectively transfer 6 channels of analog 16-bit audio signal to the other side without loosing quality or inducing some kind of interference. Cable length would be around 5 meters. This circuit would be used in automotive to substitute 6 RCA...

I am trying to determine DC errors for ADC128S102QML-SP. More specifically, I am referring to the gain error, offset error, INL error, and DNL error. It is a 12 bit ADC with a supply voltage of 5V. From the datasheet, I concluded the following: Offset error is 2.3 LSB which I believe...