# Questions tagged [single-ended]

An electrical signal composed of a single conductor carrying a voltage which varies with respect to a reference voltage (usually ground), as opposed to a differential signal, which consists of complementary signals carried on each conductor.

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### DC-coupled wide-bandwidth differential to single-ended conversion

I'm designing a circuit that produces differential signal outputs in the frequency range from DC to about 2 GHz. This differential signal will be driven by an FDA (probably LMH6401 or LMH5401). I'd ...
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### Receiver stage of single ended signal impedance

I have buffered RC filter feed by single ended signal from 5m wire. Since we can scale impedances without frequency characteristic change, I now we can opt between input resistor of filter being small ...
1 vote
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### Differential voltage to frequency

Edited to clarify some questions I’m working on a design that will take a 0.5V-4V signal from a laser displacement sensor (Keyence Il-1000) and convert it to a frequency signal (0.1-2Mhz) for input to ...
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### Linearity Loss on Single Ended to Differential Circuit

I have a board that converts a single ended output of a DAC to a differential signal with options for the common mode voltage. The output of my 20-bit DAC goes on the VOUT_BUFFERED signal here. At ...
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### Single-ended digital signal to RS422 differential signal

I'm trying to control a laser scanner from an Arduino board. The Arduino outputs a single-ended digital signal 0V or 3.3V. The signal I'm transmitting to the laser is the same signal as I use to ...
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### How does the current of RS485 signals return from the receiver to the sender?

I am planning a system consisting of 1 master device which is connected to 19 slave devices using RS485 transceivers. Also, all devices are powered by 1 PSU. A simplified schematic is shown below. As ...
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I want to use the MAX1032 ADC (datasheet) to measure a voltage (Vin) through a voltage divider (30K/3K) with a PIC microcontroller over SPI. I have written a simple library for Single-Ended Unipolar ...
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### Single Ended Signal Ground In a Loop

I have ten devices that I need to connect in a loop so they can send data from one device to the next until it returns to the original device. The devices are about 5 inches apart. They are all 5V ...
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### How does this "single-ended push-pull with transformerless driver" work?

I'm studying the circuit block below in an Italian textbook, "Dispositivi e circuiti elettronici", by M. Gasparini, D. Mirri. The circuit is called "single-ended push-pull with ...
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1 vote
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### RF output matching using baluns: LTC6946

The datasheet that I refer to below can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/6946fb.pdf I have a question about baluns. In the datasheet for LTC6946 ...
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### Why is input resistance parallel with the base of BJT?

I'm solving for the third stage. The resistance looking into the base of Q7 is taken between its base terminal and ground as follows during small signal analysis for single end gain of Second Stage ...
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### Why do differential signals need an inverse wave?

At the moment, I'm working on converting a single ended audio signal to a differential one (source is a CS42L55, need a differential input for a CSR8670. The latter's datasheet is indecisive about how ...
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### Differential to Single-Ended Converter + Common-mode Shift + Sallen-Key Filter (Is one Stage Possible?)

I have a differential signal that needs to be conditioned as follows: Convert from differential to single-ended. Filter with a 3rd order Sallen-Key filter Common-mode shift into an single-ended, ...
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### Current transformers, voltage output vs current output

I'm designing a energy monitoring system that is using split-core clamp current sensors to measure multiple high power lines(40+ lines at 300A each) in a MCB room of a building. I'm currently sourcing ...
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### Read USB data to arduino [closed]

If I take a USB cable connect it with my cellphone from 1 half and in the other end I connect VCC and GND to VCC and GND pins of the arduino and the D+ and D- pins to digital pins and use a ...
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### Solving a simple single-ended differential amplifier

simulate this circuit – Schematic created using CircuitLab N.B. I_D=KVov^2 without the 2 I’m really confused with this excercise, my problem is to calculate the A_v=v_out/vd and the cutting ...
283 views

### Converting differential-current output to single-ended voltage; adjustable gain

I want to convert differential-current output of DAC2902 to single-ended voltage. Can I do it with following differential op-amp configuration at the output of the DAC? The voltage gain is fixed = 1 ...
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### Is this slide wrong about the differential signal waveform?

While learning about the differential signals I saw this youtube video. It looks like this slide does not correctly shows the voltage levels of the complementary differential signals, as I have marked ...
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### Difference between two gain +1 op-amp topologies

I've got two differential driver circuit designs that take a single ended input and provide as output a buffered pair of +1 and -1 times the input and I'm struggling to understand the difference ...
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### Differential to single-ended converter

Originally I wanted to setup a simple curve trace circuit to measure the characteristics of a BJT I salvaged. This circuit operates by measuring the voltage and current through the transistor for ...
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### Why single ended signal line is not immune to noise in RS232?

In single ended signal line the measurement is the difference between the signal and the ground. Isn't this way of calculation make it differential? Almost all the resource I have read says that ...
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### CAN bus with CANL only?

I'm interfacing a product that operates on a kind of CAN bus. Specifically, it uses the CANL line only. I'd like to use a transceiver I've used before, the MCP2562, and I suspect there's not likely ...
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### Input and Output Impedances of Single to Differential mode converter

I have this circuit that converts a single ended input signal to differential output signal. I want to understand how to calculate or find out its input and output impedances? The two op-amps are in ...
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### Input and Output Impedances of Differential Amplifier

I have this circuit that is used to convert an incoming analog differential input signal to a single ended signal. The differential input is connected at IN+, IN- and the output is taken from OUT. I ...
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1 vote
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### Differential to single ended digital signal

i have a 8GHz differential clock to convert to single ended. Is taking one end of the clock enough? what are the risks of doing so?
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### Audio amplifier output bypass capacitor

I'm currently designing a single rail power supply audio amplifier and just wondering what the benifits are (if any) and if its worth including a film/poly capacitor in parallel with the large ...
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### Definition of the offset voltage for a single-ended op-amp

Let's consider an op-amp: The book I'm reading says that, ideally, if the voltage difference between the two inputs is zero (thus vin1=vin2) then the output voltage should be zero. However, because ...
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### Singled ended or Differential - Engine Control Unit

I know this topic has been beaten to death but I still have not got a clear understanding. Pardon me for my bad explanation as I am an automotive engineer by trade. I am simulating an engine knock ...
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### How to connect/terminate differential CML logic outputs to single ended ECL logic input?

If I want to use a CML differential gate's (Ex: SY58051AU) output as the enable ECL input for an ECL counter(EX: MC100EP016A), whats the best way to connect the output to input? I think I need to use ...
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### Noise immunity of single ended analog voltage signal

I want to use a sensor with analog output in my design. The output of the sensor is a low frequency traingular wave (less than 300 Hz) and voltage vetween 0 - 5V. I need to carry the sensor signal to ...
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### Single ended to differential conversion with voltage divider

Let's assume I have an AD-converter that expects a differential signal with zero common mode voltage and I want to connect a single ended signal source. If the AD has it's own isolated ground, couldn'...
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### How to measure external voltage differential with single ended ADC?

I would like to measure voltages from external circuits with the single ended ADC from an Atmega324. The plan is to power the Atmega324 with 3.3V and use a 1.024 or 2.048 voltage reference. The ...
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### Experimenting interference effects for different measurement systems

This is about for low level signals interference/noise being observed with single ended data acquisition inputs but not with diff inputs. Basically there are three data acquisition boards, where one ...
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### Pseudo-differential DAC output to single ended [closed]

I have a Cirrus Logic CS43198 DAC with pseudo differential outputs. Is there a simple passive circuit to change them to single ended outputs?
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### Differential to single ended circuit

I have a differential signal up to 1.5 MHz and have to transform it to a single ended signal. I have found this amplifier which has a BW of 2.2 MHz and should therefore be okay for this task. The ...
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### Differential Amplifier circuit

I wanted to transform a differential signal to a single-ended signal using a differential amplifier. When I am reading the datasheets for fully differential amplifiers there are just single-ended/...
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### Differential to single ended

I have a differential signal ranging from 0 to 2 MHz and need to transform it into a single-ended signal. I found out that there are 3 methods: Transformer Amplifier simply ground the negative part ...
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### Abnormal Voltage drop reading, 4 wire vs 3 wire, Singled ended input

I have been given a measurement circuit that is measuring voltage drop across a switch. The idea is that it uses the 4 wire method for measuring resistance. However for our purpose we are not ...
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### What is the practical advantage of using mirrored signal outputs eventhough what matters is balancing the wires?

Some devices output differential outputs since both wires carry varying signals which are mirrored. Most devices on the other hand output one signal carrying and one GND wire. There is also ...
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### Some questions about a single ended system and common mode noise

Below is a system where a signal source on the left is floating/ungrounded/unearthed and the measurement system on the right is earth-grounded through the signal analog ground AGND: Regarding the ...
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### Will this one-switch resonant topology work?

simulate this circuit – Schematic created using CircuitLab Will this thing work? I do not mind the horrendous amount of interference this may produce. Principle of operation is: Switch-on ...
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### Single-ended to differential conversion and ADC application

I am not quite familiar with the things I am going to describe. So, I need some help over here. I want to integrate an AD4001 ADC at a board I currently design. The thing is that my analog signal is ...
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### Efficiency of obtaining differential signalling from a single-ended manufactured transducers

This will be a conceptual question. I'm sometimes dealing with data-acquisition of transducers, like strain gauges, accelerometers ect. sort of sensors. Most of these sensors have their own precision ...
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### sending differential signals off board, what kind of connector do I use?

So, my question is this. I've got four differential pairs from an LVDS chip which need to go to a connector, along with a few single-ended signals. For this purpose, I chose a hirose df13 connector. ...
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### AD8131 Single Ended to Differential Problem

I am attempting to convert a single ended signal (0-5V) to a differential signal (+/- 5V about 0V) using an AD8131ARZ. I have it wired as per the attached schematic. When I supply +5V to the positive ...
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### How to solve electric shock issues in this system?

When I measure the potential difference between for example a 12V DC output device's one output terminal such as a power supply's or a transducer's and the "earth ground", I see 50Hz voltage signal ...
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### When would I use a 4-20mA differential current input?

I've recently run into a scenario where I need to pick between a singled ended current input (4-20mA) input device and a differential current input device. Single Ended and Differential. I've never ...
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### Single ended active bandpass filter

I've designed an active bandpass filter based on the one described in this article http://www.bu.edu/eng/courses/ek307/documents/ActiveFilterNotes.pdf (section 13.3.4). However, I want to use a single ...
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