19 questions linked to/from Level shifting a +/- 2.5V signal to 0 - 5V
1 vote
10k views

### Offset an input voltage of -2.5V - 2.5V to 0V - 5V? [duplicate]

I have a circuit input which provides a voltage range of negative 2.5 volts to positive 2.5 volts. How do I change this so the output voltage is 0 - 5 volts? simulate this circuit – Schematic ...
• 19
2k views

### How can I convert an audio signal from a phone to 0-5v for a microcontroller? [duplicate]

I am trying to build a micro controller system where I input music from a phone/tablet and control the volume using a hardware keypad and do other stuff with the audio. I am trying to understand how ...
934 views

### What analog circuit i should use to shifting a signal from -5..5v into 0..10v? [duplicate]

I want to output my circuit from -5..5v into 0..10v. My circuit generate -5..5v. What should i do to generate that signal? what analog circuit i should use? thanks
• 11
316 views

This question has been redirected from raspberry pi community. Some of the questions have been answered by @Milliways, so those questions have been edited out. I'm using this Raspberry Pi High-...
83 views

### Level shifting a pitot tube signal to an Arduino ADC [duplicate]

I have a speed sensor (pitot tube) that operates as described in the figure below. My problem is that the resolution of the sensor is not good when read by the Arduino UNO ADC (around 2.75m/s.) My ...
1 vote
3k views

### Can someone explain this gain & offset op-amp circuit?

I'm having trouble understanding the circuit in the photo below. I know that it's a gain and offset amp designed to convert 0-2.5 V range to +/-10 V range (hence it has a gain of 8 and an offset of -...
1 vote
22k views

### Non-inverting op-amp with DC offset

I'm trying to amplify an AC wave (from an audio input) with a maximum amplitude of about 1.8v to a DC oscillation between 0V and 5V with the centre (what would be the zero-crossing on the input) at ...
• 13
1 vote
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### Filtering DC offset of a pulse train

How can I filter a DC offset of a pulse train with an RC circuit? The signal is a pulse jumping between 3.07V and 3.53V. But I need a pulse which is jumping between 0V to 0.5V. How can I filter that ...
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### How to add dc offset and gain to a given signal

Before I start, I just want to mention that I am a premed student. However, I want to build a DIY amp for my headphones since my computer can't properly drive them so I decided to take an electronics ...
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1k views

### Level shifting a 11.3V-12V signal down to 0-5V with an Inverting Op Amp Level Shifter (Vout=-m*Vin-b)

I want to invert, difference, and amplify the 11.3-12V decaying (upwards to 12V) signal from the metal detector coil in the circuit at https://www.lammertbies.nl/electronics/pi-metal-detector into a 0-...
• 402
1 vote
2k views

### Operational Amplifier Circuit - +/- Signal to 0 ... 5 V

I know that this question has been ask in similiar ways already. Since I am rather new to Electrical Engineering and I don't want to waste material I wanted to ask you guys first if my approach is ...
• 51
2k views

### Replace analog pot with digital - volume control

I'm trying to replace an analog pot with a digital one for the volume control in a guitar amp. I have a digital pot - MCP4141 put instead of the analog one. However, checking on the oscilloscope seems ...
2k views

### How to design a high impedance buffer circuit?

How can I design a buffer circuit that takes an input of +/- 10V and scales it down to a 0V to 5V. The idea is to design a circuit that is microcontroller compatible (can be read by an analog-in pin ...
• 267
523 views

### Non-inverting amplifier with negative supply rail

simulate this circuit – Schematic created using CircuitLab The formula Vout = Vin * (1 + R2 / R1) is not valid for this case? because for example I'm feeding ...
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