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. 162-6405
Mfr. Part No.SN75ALS191P
€1.676
Each (In a Tube of 50)
units
Single 5 V - - - - - - 2 Through Hole PDIP 8 - 50 mA
RS Stock No. 796-8940
Mfr. Part No.ADA4940-1ARZ
€3.695
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. 732-0774
Mfr. Part No.SN75ALS191P
€2.004
Each (In a Pack of 5)
units
Single 5 V - - - - - - 2 Through Hole PDIP 8 - 50 mA
RS Stock No. 106-7058
Mfr. Part No.SSM2142SZ
€4.804
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. 912-8034
Mfr. Part No.ADA4940-1ARZ
€2.835
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. 522-8411
Mfr. Part No.SSM2142SZ
€7.35
Each
units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Surface Mount SOIC W 16 No 5.5 mA
RS Stock No. 912-7410
Mfr. Part No.AD8138ARZ
€6.16
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. 145-7384
Mfr. Part No.ADN4661BRZ
€1.412
Each (In a Tube of 98)
units
- - - - - - - - - Surface Mount SOIC 8 - -
RS Stock No. 923-1525
Mfr. Part No.EL4543IUZ
€4.719
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. 412-898
Mfr. Part No.AD8131ARMZ
€4.55
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. 732-0752
Mfr. Part No.AM26C31QD
€1.822
Each (In a Pack of 5)
units
Single 5 V - - - - - - 4 Surface Mount SOIC 16 - ±0.001 mA
RS Stock No. 923-1578
Mfr. Part No.EL5171ISZ-T7
€0.899
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. 183-2523
Mfr. Part No.ADN4663BRZ
€2.092
Each (In a Pack of 5)
units
Dual - 3.3V 1.37V - - - - 2 Surface Mount SOIC 8 - 20 mA
RS Stock No. 145-6032
Mfr. Part No.AM26C31QD
€1.529
Each (In a Tube of 40)
units
Single 5 V - - - - - - 4 Surface Mount SOIC 16 - ±0.001 mA
RS Stock No. 160-1778
Mfr. Part No.ADA4950-1YCPZ-R2
€5.502
Each (On a Reel of 250)
units
Dual, Single 3 V ±5V 6.5mV 32kΩ 1.01V/V 770MHz -64dB 1 Surface Mount LFCSP 16 - 5 mA
RS Stock No. 697-7533
Mfr. Part No.ADA4941-1YRZ
€5.51
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. 697-7694
Mfr. Part No.ADN4661BRZ
€1.746
Each (In a Pack of 5)
units
- - - - - - - - - Surface Mount SOIC 8 - -
RS Stock No. 759-0005
Mfr. Part No.AD8139ACPZ-R2
€6.44
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. 106-7064
Mfr. Part No.SSM2142PZ
€5.98
Each (In a Tube of 50)
units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Through Hole PDIP 8 - 5.5 mA
RS Stock No. 111-1170
Mfr. Part No.AD8138ARMZ
€5.907
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 - -
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Differential Amplifiers by Analog Devices are integrated and optimised for differential signalling applications These speciality amplifiers have inherent common mode rejection properties that provide a low harmonic distortion with an output gain and phase matching. Applications include driving or receiving ...
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