Isolation Amplifiers

Isolation Amplifiers are instruments that have been designed to measure the smallest current and voltage signals in the presence of high common mode voltage by providing electrical safety barrier and electrical isolation. They are differential amplifiers that protect data acquisition components from common mode voltages, which are potential differences between instrument ground and signal ground.

How to select a correct isolation amplifier?
There are two main types of isolation amplifiers and the decision of using one or another may depend on several aspects and user needs:

• Single-ended, floating common - an isolated and quasi-balanced input (the floating common is typically connected to the (-) input of differential amplifier). Suitable for off-ground measurements up to breakdown voltage of the isolation barrier, and exhibits very good common mode rejection (100 dB typical).

• Differential, floating common - an isolated and balanced input. Suitable for off-ground measurements of the breakdown voltage of the isolation barrier, and exhibits superb common mode rejection (>120 dB).

What is typical application of isolation amplifiers?
Isolation amplifiers are commonly used in test and measurement or medical devices. Also, they are popular in solar and fuel cells construction to profile the performance of individual series-connected voltage cells.

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Beskrivning Pris Power Supply Type Typical Dual Supply Voltage Typical Single Supply Voltage Isolation Mode Rejection Rail to Rail Number of Channels per Chip Maximum Voltage Gain Mounting Type Package Type Pin Count Dimensions Height Width Length
RS-artikelnummer 830-4981
Tillv. art.nrACPL-C87BT-000E
VarumärkeBroadcom
104,43 kr
Each
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Single - 3 → 5.5 V - - 1 1.005V/V Surface Mount SOIC 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS-artikelnummer 922-6513
Tillv. art.nrACPL-C87BT-000E
VarumärkeBroadcom
84,92 kr
Each (In a Tube of 80)
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Single - 3 → 5.5 V - - 1 1.005V/V Surface Mount SOIC 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS-artikelnummer 106-7018
Tillv. art.nrAD202JY
VarumärkeAnalog Devices
755,474 kr
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Single - 15 V 130dB - 1 40dB Through Hole SIP 11 15.9 x 52.8 x 6.6mm 15.9mm 6.6mm 52.8mm
RS-artikelnummer 369-5774
Tillv. art.nrAD202JY
VarumärkeAnalog Devices
760,07 kr
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Single - 15 V 130dB - 1 40dB Through Hole SIP 11 15.9 x 52.8 x 6.6mm 15.9mm 6.6mm 52.8mm
RS-artikelnummer 127-0272
Tillv. art.nrAD202JN
VarumärkeAnalog Devices
775,19 kr
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Single - 15 V 130dB - 1 40dB Through Hole PDIP 11 8.9 x 53.3 x 17.8mm 8.9mm 17.8mm 53.3mm
RS-artikelnummer 106-7013
Tillv. art.nrAD202JN
VarumärkeAnalog Devices
763,31 kr
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Single - 15 V 130dB - 1 40dB Through Hole PDIP 11 8.9 x 53.3 x 17.8mm 8.9mm 17.8mm 53.3mm
RS-artikelnummer 796-8745
Tillv. art.nrADUM3190TRQZ
VarumärkeAnalog Devices
28,641 kr
Each (In a Pack of 7)
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Single - 3 → 20 V 72dB - 1 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS-artikelnummer 922-5652
Tillv. art.nrHCPL-788J-000E
VarumärkeBroadcom
59,595 kr
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Dual 5V - 140dB - 1 - Surface Mount SOIC 16 3.51 x 10.31 x 7.49mm 3.51mm 7.49mm 10.31mm
RS-artikelnummer 145-7698
Tillv. art.nrADUM4190SRIZ
VarumärkeAnalog Devices
24,187 kr
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Single - 3 → 20 V 72dB - 1 80dB Surface Mount SOIC 16 12.85 x 7.6 x 2.44mm 2.44mm 7.6mm 12.85mm
RS-artikelnummer 178-3139
Tillv. art.nrACPL-798J-000E
VarumärkeBroadcom
50,427 kr
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Single - 3 → 5.5 (VDD2) V, 4.5 → 5.5 (VDD1) V - - - - Surface Mount SOIC 16 10.31 x 7.49 x 3.5mm 3.5mm 7.49mm 10.31mm
RS-artikelnummer 369-5819
Tillv. art.nrAD210JN
VarumärkeAnalog Devices
1 035,252 kr
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Single - 15 V 120dB - 1 40dB Through Hole PDIP 12 8.91 x 53.3 x 25.4mm 8.91mm 25.4mm 53.3mm
RS-artikelnummer 450-907
Tillv. art.nrHCPL-7840-300E
VarumärkeBroadcom
62,25 kr
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Single - 5 V 76.1dB - 1 18.49dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS-artikelnummer 450-862
Tillv. art.nrHCPL-788J-000E
VarumärkeBroadcom
71,66 kr
Each
Enheter
Dual 5V - 140dB - 1 - Surface Mount SOIC 16 3.51 x 10.31 x 7.49mm 3.51mm 7.49mm 10.31mm
RS-artikelnummer 922-6510
Tillv. art.nrACPL-7900-300E
VarumärkeBroadcom
41,261 kr
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Single - 3 → 5.5 V - - 1 8.44V/V Surface Mount PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-artikelnummer 786-3151
Tillv. art.nrADUM3190ARQZ
VarumärkeAnalog Devices
24,04 kr
Each (In a Pack of 2)
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Single - 3 → 20 V - - 2 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS-artikelnummer 803-0747
Tillv. art.nrACPL-782T-300E
VarumärkeBroadcom
114,98 kr
Each
Enheter
- - - - - - - Surface Mount DIP - - - - -
RS-artikelnummer 922-6624
Tillv. art.nrACPL-C780-000E
VarumärkeBroadcom
73,759 kr
Each (In a Tube of 80)
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Single - 5 V 76dB - 1 18.32dB Surface Mount SOIC 8 3.18 x 5.85 x 6.81mm 3.18mm 6.81mm 5.85mm
RS-artikelnummer 734-4981
Tillv. art.nrACPL-790A-000E
VarumärkeBroadcom
58,11 kr
Each
Enheter
Single - 3 → 5.5 V - - 1 8.28V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-artikelnummer 922-5665
Tillv. art.nrHCPL-7800A-300E
VarumärkeBroadcom
94,876 kr
Each (In a Tube of 50)
Enheter
Single - 5 V 76dB - 1 18.14dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS-artikelnummer 178-3208
Tillv. art.nrACPL-C78A-060E
VarumärkeBroadcom
52,578 kr
Each (In a Tube of 80)
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Single - 4.5 → 5.5 V - - 2 8.08V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
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