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0
votes
1answer
41 views

Automatic level shifting

I have a signal which can have a different offset voltage based on the requirements. However, I need the voltage to start at zero. Since the offset is variable, I was hoping if there are any ...
0
votes
1answer
56 views

Debugging a op-amp based comparator

I am trying to build a high frequency (~ 5MHz) level shifter circuit. For this purpose, I designed a comparator circuit based on TI's THS3491. The circuit schematic is shown below: simulate this ...
-2
votes
2answers
445 views

How to do level shifting signal in simulink matlab?

i want to do level shifting signal from -5..5v to 0..10v in simulink.. anyone know how to do that in simulink? thanks
0
votes
1answer
171 views

Driving a Bar-graph LED Block With a Range of HV

I'm aware that it's possible to use the voltage drop of diodes to act as a step barrier for a rough ADC(?), as is done here (http://www.instructables.com/id/9-Channel-pure-analog-graphic-equalizer/). ...
0
votes
1answer
175 views

level shifting options [closed]

I want to translate or shift 1.8V to about 2.5V. Now, there are 2 ways I can go about with it. Use an op-amp based circuit as shown below - Mosfet circuitry - Which is more efficient and why ? In ...
0
votes
4answers
208 views

High Speed Op-Amp recommendation [closed]

I am tasked with the issue of driving an IC that wants 5V input signals from an FPGA (3.3V outputs). Now, the most daunting part of it is the slew-rate requirements, with rise time \$t_r = 1.5 \text{...
0
votes
2answers
173 views

Level shifting 8 output IO Expander from 0V-5V to -2.3V to +2.3V

I have a circuit problem that I'm trying to find a solution for. I have an 8 output IO expander which outputs 0V-5V. It is running analog switches which have a Vdd and Vss of +-2.3V. Using the 5V ...
0
votes
2answers
1k views

Need help with a VU meter analog signal

I am making an Arduino VU meter. I need to convert an analog AC audio signal to a varying positive DC signal. I would like the following outputs: 2.5 V output at 0 V input (from VM1); 5 V at maximum ...
9
votes
3answers
42k views

Analog voltage level conversion (level shift)

I have a joystick that puts out analog voltage somewhere between 1.5V and 3.5V. I want to transform this range of voltage to control a motor controller that takes analog voltage between 0V and 5V. ...