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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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When compared to single-ended signals, do differential signals actually offer better EMI protection?

I'm looking for clarification on whether differential signals actually offer benefits with regards to EMI protection versus single-ended signals. Here is my current understanding (feel free to make ...
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Op-amp schematic connection questions and DC biasing

In the first stage the signal is converted to single-ended, and it is amplified using a digital potentiometer in the second stage to be able to change the gain with a microcontroller. In the last ...
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Single Ended to Differential Conversion with Opamp and Correct DC Biasing Method

First schematic below is the initial gain stage of the intermediate signal generated by mixer of radar. It is passed through sallen key high pass filter. Second schematic for differential to single ...
Cenk's user avatar
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Minimizing noise with single-ended opamps

Opamps often get used with one input at a DC voltage, usually the main ground per the standard inverting amplifier example: For low noise, a BJT input stage like OPA1611's is often chosen for the ...
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Mitigating 2.4GHz interference from 0-5V analog signaling line

I am chasing my tail on a project and cannot seem to find a way out of the hole. I have a small 18mm 40kHz piezo transducer running through a powered precision rectifier+preamp circuit. This tiny ...
Matt001's user avatar
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Single-ended or differential for very high frequency?

When reading the ADF4371 evb datasheet, I realized that 16-32 GHz output uses only single-ended but all other outputs use differential output. Doesn't it mean for very high frequency the single-ended ...
Pascal R.'s user avatar
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511 views

LVDS to Singled-Ended - Transmission Line Balun Matching

I need to convert a LVDS clock into a single-ended signal. In the past I've used a voltage balun with a center tap on the secondary but I haven't found any good past 1GHz. I need to get to 2GHz in ...
Spegs21's user avatar
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TRS balanced audio jack insertion indicator

I'm transmitting analog audio signal from BM20 bluetooth module (it has single ended audio out L + R), to amplifier TPA3118D2. I wish to add two TRS 1/4 balanced audio output jacks (separate for L and ...
Mateusz Kusmierz's user avatar
1 vote
1 answer
212 views

Differential and single ended crosstalk and clearance

I know that there can be crosstalk between differential pairs (and you need at least a few lengths equal to the diff pair between diff pairs, usually 3 or more diff pair widths). What is the ...
Voltage Spike's user avatar
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158 views

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 ...
MattHusz's user avatar
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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 ...
thadwald's user avatar
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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 ...
Blims's user avatar
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6 votes
8 answers
2k views

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 ...
Michael's user avatar
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1 answer
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MAX1032 ADC Single-Ended reading/conversion problem

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 ...
lucas's user avatar
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4 votes
2 answers
270 views

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 ...
Alchitry's user avatar
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3 answers
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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 ...
barrow's user avatar
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1 answer
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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 ...
jerrybenny18's user avatar
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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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4 votes
2 answers
996 views

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 ...
brazed_blotch's user avatar
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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, ...
VIANDERN's user avatar
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0 answers
213 views

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 ...
Max's user avatar
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1 vote
2 answers
299 views

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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3 votes
1 answer
289 views

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 ...
Sergio Piccione's user avatar
2 votes
2 answers
986 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 ...
scico111's user avatar
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2 answers
362 views

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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How do I convert ADC single-ended output back to voltage (ADS1115)?

I am evaluating some ADCs for my project and am trying to understand the operation of Adafruit's ADS1115 16 bit ADC (https://learn.adafruit.com/adafruit-4-channel-adc-breakouts/downloads) in single-...
haresfur's user avatar
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2 answers
195 views

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 ...
Sean's user avatar
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1 answer
5k views

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 ...
Aidan L.'s user avatar
2 votes
3 answers
3k views

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 ...
user82453's user avatar
2 votes
1 answer
573 views

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 ...
quiver's user avatar
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1 vote
1 answer
485 views

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 ...
alt-rose's user avatar
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0 answers
791 views

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 ...
alt-rose's user avatar
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1 vote
1 answer
178 views

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?
Emerald's user avatar
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0 answers
340 views

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 ...
G Frank's user avatar
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1 vote
1 answer
520 views

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 ...
Stefanino's user avatar
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0 answers
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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 ...
Vish_evo's user avatar
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2 answers
831 views

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). What's the best way to connect the output to the input? I think I need to ...
Memento Dex's user avatar
3 votes
0 answers
104 views

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 ...
Firebird207's user avatar
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1 answer
1k views

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'...
Lukas's user avatar
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0 answers
308 views

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 ...
Winter's user avatar
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0 votes
1 answer
78 views

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 ...
floppy380's user avatar
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0 votes
1 answer
353 views

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?
Johan B.'s user avatar
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5 votes
2 answers
11k views

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 ...
epgrape's user avatar
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2 votes
2 answers
349 views

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/...
epgrape's user avatar
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9 votes
3 answers
16k views

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 ...
OcK's user avatar
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1 vote
1 answer
163 views

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 ...
TheColonel26's user avatar
4 votes
3 answers
455 views

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 ...
user1245's user avatar
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-1 votes
2 answers
766 views

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 ...
floppy380's user avatar
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0 votes
0 answers
137 views

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 ...
cccp3's user avatar
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1 vote
1 answer
3k views

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 ...
Konstantinos Tsoumanis's user avatar