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
PHP268.776
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
PHP493.37
Each
units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Surface Mount SOIC W 16 No 5.5 mA
RS Stock No. 787-6738
Mfr. Part No.MC100EP16DTG
PHP337.58
Each
units
Dual 3.3 V, 5 V ±6V - - - 4GHz - 1 Surface Mount TSSOP 8 No 38 mA
RS Stock No. 108-410
Mfr. Part No.AD8131ARZ
PHP235.85
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. 162-6405
Mfr. Part No.SN75ALS191P
PHP101.33
Each (In a Tube of 50)
units
Single 5 V - - - - - - 2 Through Hole PDIP 8 - 50 mA
RS Stock No. 923-1525
Mfr. Part No.EL4543IUZ
PHP285.427
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. 912-8034
Mfr. Part No.ADA4940-1ARZ
PHP177.607
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. 912-7410
Mfr. Part No.AD8138ARZ
PHP382.051
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. 196-8874
Mfr. Part No.HA9P5002-9Z
PHP691.03
Each
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Dual 15 V 44V 30mV - - 110MHz - 1 - SOIC 8 - -
RS Stock No. 732-0774
Mfr. Part No.SN75ALS191P
PHP109.004
Each (In a Pack of 5)
units
Single 5 V - - - - - - 2 Through Hole PDIP 8 - 50 mA
RS Stock No. 522-8540
Mfr. Part No.SSM2142PZ
PHP519.83
Each
units
Dual - ±13 → ± 18V - 0.01MΩ 5.98dB - - 1 Through Hole PDIP 8 No 5.5 mA
RS Stock No. 912-6325
Mfr. Part No.ADA4941-1YRZ
PHP264.262
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. 523-7128
Mfr. Part No.AD8138ARMZ
PHP441.53
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. 160-1778
Mfr. Part No.ADA4950-1YCPZ-R2
PHP327.061
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. 732-1010
Mfr. Part No.SN75113N
PHP158.03
Each
units
Single 5 V - - - - - - - Through Hole PDIP 16 - 85 mA
RS Stock No. 759-0005
Mfr. Part No.AD8139ACPZ-R2
PHP560.14
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. 661-2444
Mfr. Part No.DRV134UA
PHP300.83
Each
units
Dual - ±18V - 0.01MΩ 6dB - 46dB 1 Surface Mount SOIC 16 No -
RS Stock No. 523-6181
Mfr. Part No.AD8138ARZ
PHP430.78
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. 697-7694
Mfr. Part No.ADN4661BRZ
PHP99.382
Each (In a Pack of 5)
units
- - - - - - - - - Surface Mount SOIC 8 - -
RS Stock No. 759-0204
Mfr. Part No.ADA4922-1ARDZ
PHP428.93
Each
units
Single 5 → 26 V - 1.1mV 11MΩ 2V/V 38MHz - 2 Surface Mount SOIC 8 No -
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