differential line

differential line

(hardware)
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.
References in periodicals archive ?
These seven products include a 1:2 Fanout Buffer, Differential Line Driver/Receiver, 2:1 Multiplexer, and a 2 x 2 Crosspoint Switch and operate up to 3.
In either stripline or microstrip, for either a 50 [OMEGA] single-ended or 100 [OMEGA] differential line, the attenuation from the conductor is -0.
In addition, the AS3421/22 devices offer fully differential stereo line inputs to match the differential line outputs from typical Bluetooth-based headset systems-on-chip, combining outstanding audio quality with high performance noise reduction of typically more than 25dB.
It yields an excess capacitance, Cexc, above and beyond capacitance present in the uniform differential line, of 64.
Three New Quad Differential Line Drivers Assure Reliable Performance in Rugged Industrial Environments with Wide Voltage and Temperature Operating Ranges
The new devices' unique architecture provides designers with a highly flexible combination of bandwidth, gain and analog input voltage to address design challenges of differential line receivers and equalizers, pulse shaping, continuously variable gain and attenuation stages, automatic gain control (AGC) and voltage tunable filters.
The highly integrated data transceivers are designed with Analog Devices' iCoupler([R]) isolation technology and combine a 3-channel isolator, a three-state differential line driver and a differential input receiver based on Analog Devices' isoPower([R]) isolated dc-to-dc converter technology.
The SP1486E is a half duplex differential line transceiver suitable for high speed bi-directional communication on multipoint bus transmission lines.
Both devices use differential line inputs to minimize the effects of ground noise and EMI susceptibility, and also feature low quiescent current of 1 mA with both channels enabled.
The SN65HVD33/34/35 and SN65HVD53/54/55 are differential line drivers and receivers, with separate input and output pins for full-duplex (4-wire) bus communication designs.
The OPA2614 is an exceptional differential line driver through low to moderate frequencies.
to 55-ohm line drivers for clock frequencies up to 125 MHz or data rates up to 250 Mbps * Controlled driver output voltage transition times for improved signal quality * Bus pin electrostatic discharge (ESD) protection exceeds 9 kV SN65MLVD047 * Differential line drivers for 30-ohm to 55-ohm loads and clock frequencies up to 100 MHz or data rates up to 200 Mbps * Supports multipoint bus architectures * Operates from a single 3.

Full browser ?