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 912-9787
Tillv. art.nrAD202KY
VarumärkeAnalog Devices
866,366 kr
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Single - 15 V 105dB - 2 1 → 100V/V Through Hole SIP 10 52.8 x 6.6 x 15.9mm 15.9mm 6.6mm 52.8mm
RS-artikelnummer 759-2196
Tillv. art.nrAD202KY
VarumärkeAnalog Devices
961,31 kr
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Single - 15 V 105dB - 2 1 → 100V/V Through Hole SIP 10 52.8 x 6.6 x 15.9mm 15.9mm 6.6mm 52.8mm
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 830-4981
Tillv. art.nrACPL-C87BT-000E
VarumärkeBroadcom
99,99 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 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 922-6513
Tillv. art.nrACPL-C87BT-000E
VarumärkeBroadcom
81,223 kr
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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 759-2187
Tillv. art.nrAD202KN
VarumärkeAnalog Devices
939,08 kr
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Single - 15 V 105dB - 2 1 → 100V/V Through Hole PDIP 10 53.3 x 17.8 x 8.52mm 8.52mm 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 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 178-3210
Tillv. art.nrACPL-C79A-000E
VarumärkeBroadcom
49,418 kr
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Single - 4.5 → 5.5 V - - 2 8.28V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS-artikelnummer 159-9274
Tillv. art.nrADUM4190ARIZ
VarumärkeAnalog Devices
22,184 kr
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Single - 3 → 20 V - - 1 80dB Surface Mount SOIC 16 12.85 x 7.6 x 2.44mm 2.44mm 7.6mm 12.85mm
RS-artikelnummer 168-9952
Tillv. art.nrSI8261ACA-C-IS
VarumärkeSilicon Labs
10,018 kr
Each (In a Tube of 96)
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Single - 5 → 30 V - Rail to Rail Output 1 - Surface Mount SOIC 8 5 x 4 x 1.55mm 1.55mm 5mm 5mm
RS-artikelnummer 178-3172
Tillv. art.nrACPL-790B-000E
VarumärkeBroadcom
56,179 kr
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Single - 3 → 5.5 V - - 1 8.24V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-artikelnummer 146-4417
Tillv. art.nrACNT-H511-000E
VarumärkeBroadcom
17,125 kr
Each (In a Pack of 2)
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Single - Maximum of 24 V - - 1 - Surface Mount SO8 8 13.6 x 6.24 x 3.6mm 3.6mm 6.24mm 13.6mm
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 178-3173
Tillv. art.nrACPL-782T-300E
VarumärkeBroadcom
91,803 kr
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- - - - - - - - - - - - - -
RS-artikelnummer 145-7696
Tillv. art.nrADUM3190BRQZ
VarumärkeAnalog Devices
19,729 kr
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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 288-777
Tillv. art.nrISO122U
VarumärkeTexas Instruments
304,62 kr
Each
Enheter
Dual ±12 V, ±15 V, ±5 V, ±9 V - - - 1 0dB Surface Mount SOIC 28 2.3 x 17.9 x 7.5mm 2.3mm 7.5mm 17.9mm
RS-artikelnummer 174-3675
Tillv. art.nrHCPL-7800A-500E
VarumärkeBroadcom
60,93 kr
Each (On a Reel of 1000)
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Single - Maximum of 5.5 V 76dB - 1 8.08V/V Surface Mount DIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-artikelnummer 300-8259
Tillv. art.nrISO124U
VarumärkeTexas Instruments
185,09 kr
Each
Enheter
Dual ±12 V, ±15 V, ±5 V, ±9 V - - - 1 0dB Surface Mount SOP 8 2.3 x 17.9 x 7.5mm 2.3mm 7.5mm 17.9mm
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