differential line

differential line

A kind of electrical connection using two wires, one of which carries the normal signal (V) and the other carries an inverted version the signal (-V). A differential amplifier at the receiver subtracts the inverted signal from the normal signal to yield a signal proportional to V. This subtraction is intended to cancel out any noise induced in the wires, on the assmption that the same level of noise will have been induced in both wires. Twisted pair wiring is often used to try to ensure that this is the case.

The two wires might be connected at the receiver to separate analogue to digital converters and the subtraction performed digitally.

The RS-422 serial line standard specifies differential drivers and receivers, whereas the earlier RS-232 standard does not.

Opposite: single ended.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
Wheat differential line with a combination of Sr gene 13 and 17 was virulent on most races, but it is avirulent on races TTKSK and TTTSK.
Utilizes Texas Instruments' high quality CM5242, the all new X1 gets higher signal-to-noise ratio and supports full differential line output to achieve balanced line output function, as compared with PCM5142 of last generation.
Recently, Sakr (2012) reported that sunflower differential line D3 (RHA-274) carrying Pl2 gene is important for studying virulence cost in P.
Simultaneously, the mismatch of the differential line caused by the presence of the slotted ground plane is minimized by properly tuning the dimensions of lines and patches at both sides of the substrate.
A differential line inductor was introduced to enhance the efficiency in an inter-stage matching network [9].
* 3-channel differential line driver type encoders.
Also, both devices use differential line inputs to minimise the effects of ground noise and EMI susceptibility, and also feature low quiescent current of 1 mA with both channels enabled.
This state maintains an equal voltage--usually midway between the CANH and CANL voltages--on each differential line. When the transceiver drives the bus with a logic 0, the dominant state, the CANH line goes to a higher voltage and the CANL line goes to a lower voltage.
The differential line driver outputs provide exceptional noise immunity in harsh electromagnetic environments, enhanced by double-shielded, high-flex cable.
This article focuses on the measurement-based approach to extracting the even and odd impedances for the distributed differential line models presented previously.
Populations CU394 and CU996 had similar levels of virulence except for the reaction of the differential line J-8281 (Or2).

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