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1
vote
0answers
52 views

1.5 bit pipeline ADC

How do we combine bits obtained from different stages of 1.5 bit pipeline ADC. Can it be generalised for k bit pipeline ADC ? each stage has three region - 00 , 01 ,11 in 1.5 bit pipeline adc
0
votes
1answer
50 views

Successive approximation conversion

Can someone explain me from the following table on how to get the DAC output.
0
votes
0answers
49 views

Converting 4 4 3 -2 Weighted Code to BCD using Decoder

I've been trying to solve a question - Design a 4 4 3 -2 to BCD converter using decoder. My attempt at the question was to make the truth table for the 443-2 code and then write the binary ...
0
votes
1answer
81 views

Digital to Analog (DAC) design with MOS transistors

I am looking for a DAC design wıth NMOS and PMOS transistors as a part of a project, most of the DAC circuits that I found were builted with R-2R or with capacitors. But I need a design with MOS ...
0
votes
2answers
93 views

How to send a digital signal when analog sensor (QRE1113) reaches a threshold value without resorting to wasting analog input pin?

I'm building a miniature pinball machine and I am attempting to use an infrared reflector sensor (QRE1113) to detect when the ball rolls over it (I got the original idea from Ben Heck's videos). In ...
7
votes
4answers
1k views

In digital systems do we discretize both time and magnitude or only time?

In studies of Digital Circuits or Digital Electronics or Digital Systems, the very first step is to convert an Analog signal / Analog system into a Digital Signal / System. In this process of ...
0
votes
3answers
368 views

Digital counter with analog output

I have a process that produces a digital pulse train from a rotary encoder. I need to be able to stop the process once a stepper motor has moved a given distance. The trick is, I need to manually set ...
1
vote
0answers
92 views

Converting BCD Truth Table to Output Functions Using K-Maps

To be honest, I'm just looking to see if I'm on the right track with a certain question. This here would be my answer for the K-Map for the "H" output function and im just curious if im on the right ...
0
votes
3answers
74 views

how to convert the difference in voltages into a digital signal

How can I convert the differences between two voltages into a digital signal? ie. if sensor 1 V > sensor 2 V there is a digital one, but if sensor 2 V >= Sensor 1 V, there is a digital 0. I understand ...
-2
votes
1answer
790 views

converting an analogue signal to be viewed on a 7 segment display

How do I convert an analogue signal to a digital signal and display it on 7 segment LED's. This must be done without using any programmable micro-controllers. It's for a school project. The analogue ...
1
vote
1answer
881 views

Need help with a R-2R DAC Circuit

I am trying to simulate a 4-bit DAC circuit using a R-2R resistor ladder. I am using a 741 op-amp. I selected the R value as 10k and calculated the value of Rf using the equation given on this page - ...
0
votes
2answers
2k views

Signal to Noise ratio problem

A 200mv peak to peak sinusoidal signal is applied to an ideal 12 bit A/D converter, for which Vref(v p-p full scale) is 5v. Find signal to noise ratio. This is a problem worked out by one of my ...
2
votes
1answer
122 views

How to detect and identify multiple points of contact

I am looking for a way to detect & distinguish multiple points of contact from force or pressure. I have asked a related question at the URL listed below: How to encode a large number of digital ...