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. 522-8411
Mfr. Part No.SSM2142SZ
£6.34
Each
Units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Surface Mount SOIC W 16 No 5.5 mA
RS Stock No. 106-7058
Mfr. Part No.SSM2142SZ
£4.197
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. 523-6181
Mfr. Part No.AD8138ARZ
£6.76
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. 912-7410
Mfr. Part No.AD8138ARZ
£5.31
Each (In a Tube of 98)
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
£3.79
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. 106-6376
Mfr. Part No.AD8131ARZ
£2.756
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. 732-1010
Mfr. Part No.SN75113N
£5.48
Each
Units
Single 5 V - - - - - - - Through Hole PDIP 16 - 85 mA
RS Stock No. 162-6404
Mfr. Part No.SN75113N
£1.972
Each (In a Tube of 25)
Units
Single 5 V - - - - - - - Through Hole PDIP 16 - 85 mA
RS Stock No. 912-8034
Mfr. Part No.ADA4940-1ARZ
£2.449
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. 697-7533
Mfr. Part No.ADA4941-1YRZ
£4.76
Each
Units
Single 3 V, 5 V, 9 V - 0.4mV 24MΩ 6.06dB - 84dB 1 Surface Mount SOIC 8 Rail to Rail Output -
RS Stock No. 912-6325
Mfr. Part No.ADA4941-1YRZ
£3.631
Each (In a Tube of 98)
Units
Single 3 V, 5 V, 9 V - 0.4mV 24MΩ 6.06dB - 84dB 1 Surface Mount SOIC 8 Rail to Rail Output -
RS Stock No. 796-8940
Mfr. Part No.ADA4940-1ARZ
£3.36
Each (In a Pack of 2)
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. 921-5841
Mfr. Part No.EL4543IUZ
£4.775
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. 923-1525
Mfr. Part No.EL4543IUZ
£4.069
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. 111-1170
Mfr. Part No.AD8138ARMZ
£5.102
Each (In a Tube of 50)
Units
Dual, Single 3 V, 5 V, 9 V ±3 V, ±5 V 2.5mV 6MΩ 0.028dB - 70dB 1 Surface Mount MSOP 8 - -
RS Stock No. 912-7315
Mfr. Part No.AD8131ARMZ
£3.23
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. 759-0204
Mfr. Part No.ADA4922-1ARDZ
£6.23
Each
Units
Single 5 → 26 V - 1.1mV 11MΩ 2V/V 38MHz - 2 Surface Mount SOIC 8 No -
RS Stock No. 810-0155
Mfr. Part No.SN75110AN
£0.653
Each (In a Pack of 25)
Units
- - - - - - - - 1 Through Hole PDIP 14 - -
RS Stock No. 523-7128
Mfr. Part No.AD8138ARMZ
£6.41
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. 412-898
Mfr. Part No.AD8131ARMZ
£3.92
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 -
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