Differential Line Drivers

Differential line drivers are electrical devices that convey analogue signals, audio or otherwise, across distances with minimal noise pick up.

How do differential line drivers work?

Information in differential line drivers is transmitted using two complementary signals. They send the same electrical signal as two different signals, each on a conductor of its own.The conductors can either be traces on a circuit board or wires that are twisted together.

The voltage between the two signals and not the difference between a single wire and earth (a common return path for electric current), prompts a response by the receiving circuit. Differential line drivers resist electromagnetic noise once the difference between wires has been detected by the receiving circuit.

What are differential line drivers used for?

Differential line drivers are utilised in balanced audio circuitry and digital signalling. They are used to reduce electromagnetic noise in applications such as portable and mobile devices where reducing the supply voltage results in reduced noise immunity, and in computers to reduce electromagnetic interference.

They can be built preferably around differential amplifiers fitted with high-speed, high-output current buffers inside the feedback loop.


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Description Price Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Maximum Input Offset Voltage Maximum Input Resistance Maximum Voltage Gain Typical Gain Bandwidth Product Minimum CMRR Number of Channels per Chip Mounting Type Package Type Pin Count Rail to Rail Maximum Supply Current
RS Stock No. 106-7058
Mfr. Part No.SSM2142SZ
HK$49.312
Each (In a Tube of 47)
units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Surface Mount SOIC W 16 - 5.5 mA
RS Stock No. 522-8411
Mfr. Part No.SSM2142SZ
HK$72.87
Each
units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Surface Mount SOIC W 16 No 5.5 mA
RS Stock No. 759-0005
Mfr. Part No.AD8139ACPZ-R2
HK$103.74
1 Tape of 1
Tape(s)
Single 5 → 12 V - 500µV - 1.001V/V 515MHz 75dB 1 Surface Mount LFCSP VD 8 Rail to Rail Output 0.008 mA
RS Stock No. 523-7128
Mfr. Part No.AD8138ARMZ
HK$78.44
Each
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 2.5mV 6MΩ 0.028dB - 70dB 1 Surface Mount MSOP 8 No -
RS Stock No. 759-0204
Mfr. Part No.ADA4922-1ARDZ
HK$59.61
Each
units
Single 5 → 26 V - 1.1mV 11MΩ 2V/V 38MHz - 2 Surface Mount SOIC 8 No -
RS Stock No. 732-0774
Mfr. Part No.SN75ALS191P
HK$19.42
Each (In a Pack of 5)
units
Single 5 V - - - - - - 2 Through Hole PDIP 8 - 50 mA
RS Stock No. 412-898
Mfr. Part No.AD8131ARMZ
HK$40.39
Each
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 12mV 0.002MΩ 6.19dB - 70dB 1 Surface Mount MSOP 8 No -
RS Stock No. 921-5841
Mfr. Part No.EL4543IUZ
HK$53.65
Each (In a Pack of 2)
units
Dual, Single 9 V ±3 V, ±5 V 10mV - 66.24dB 350MHz 60dB 3 Surface Mount QSOP 24 - 16.2 mA
RS Stock No. 523-6181
Mfr. Part No.AD8138ARZ
HK$78.44
Each
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 2.5mV 6MΩ 0.028dB - 70dB 1 Surface Mount SOIC 8 No -
RS Stock No. 108-410
Mfr. Part No.AD8131ARZ
HK$43.63
Each
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 12mV 0.002MΩ 6.19dB - 70dB 1 Surface Mount SOIC 8 No -
RS Stock No. 923-1578
Mfr. Part No.EL5171ISZ-T7
HK$10.735
Each (On a Reel of 1000)
units
Dual, Single 5 V ±5V 25mV 0.3MΩ - 250MHz 70dB 1 Surface Mount SOIC 8 - 8.2 mA
RS Stock No. 912-8034
Mfr. Part No.ADA4940-1ARZ
HK$32.878
Each (In a Tube of 98)
units
Single 3 → 6 V - 0.35mV 50MΩ 1.01V/V 260MHz 86dB 1 Surface Mount SOIC 8 Rail to Rail Output 13.5 μA
RS Stock No. 106-6376
Mfr. Part No.AD8131ARZ
HK$37.018
Each (In a Tube of 98)
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 12mV 0.002MΩ 6.19dB - 70dB 1 Surface Mount SOIC 8 - -
RS Stock No. 912-7315
Mfr. Part No.AD8131ARMZ
HK$35.957
Each (In a Tube of 50)
units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 12mV 0.002MΩ 6.19dB - 70dB 1 Surface Mount MSOP 8 No -
RS Stock No. 196-8873
Mfr. Part No.HA9P5002-9Z
HK$85.14
Each (In a Tube of 98)
units
Dual 15 V 44V 30mV - - 110MHz - 1 - SOIC 8 - -
RS Stock No. 145-7384
Mfr. Part No.ADN4661BRZ
HK$15.604
Each (In a Tube of 98)
units
- - - - - - - - - Surface Mount SOIC 8 - -
RS Stock No. 183-2278
Mfr. Part No.ADN4663BRZ
HK$18.509
Each (In a Tube of 98)
units
Dual - 3.3V 1.37V - - - - 2 Surface Mount SOIC 8 - 20 mA
RS Stock No. 923-1525
Mfr. Part No.EL4543IUZ
HK$45.61
Each (In a Tube of 55)
units
Dual, Single 9 V ±3 V, ±5 V 10mV - 66.24dB 350MHz 60dB 3 Surface Mount QSOP 24 - 16.2 mA
RS Stock No. 170-3515
Mfr. Part No.MC100EP16DTG
HK$41.16
Each (In a Tube of 100)
units
Dual 3.3 V, 5 V ±6V - - - 4GHz - 1 Surface Mount TSSOP 8 No 38 mA
RS Stock No. 121-9133
Mfr. Part No.DRV134UA
HK$39.587
Each (In a Tube of 40)
units
Dual - ±18V - 0.01MΩ 6dB - 46dB 1 Surface Mount SOIC 16 - -
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