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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Omschrijving Prijs 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-stocknr. 818-8357
FabrikantnummerHCPL-7510-300E
FabrikantBroadcom
€ 4,685
Each (In a Pack of 2)
Aantal stuks
Single - 4.5 → 5.5 V - - 1 4/0.512V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-stocknr. 146-6143
FabrikantnummerACNT-H870-000E
FabrikantBroadcom
€ 7,35
Each
Aantal stuks
Single - 4.5 → 5.5 V - - 2 1.01 Surface Mount SO 8 13.6 x 6.24 x 3.6mm 3.6mm 6.24mm 13.6mm
RS-stocknr. 145-7696
FabrikantnummerADUM3190BRQZ
FabrikantAnalog Devices
€ 1,908
Each (In a Tube of 98)
Aantal stuks
Single - 3 → 20 V - - 2 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS-stocknr. 768-7893
FabrikantnummerACPL-C870-000E
FabrikantBroadcom
€ 4,76
Each
Aantal stuks
Single - 4.5 → 5.5 V -78dB - 1 1.03V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS-stocknr. 159-9274
FabrikantnummerADUM4190ARIZ
FabrikantAnalog Devices
€ 2,145
Each (In a Tube of 37)
Aantal stuks
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-stocknr. 174-3675
FabrikantnummerHCPL-7800A-500E
FabrikantBroadcom
€ 5,893
Each (On a Reel of 1000)
Aantal stuks
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-stocknr. 178-3173
FabrikantnummerACPL-782T-300E
FabrikantBroadcom
€ 8,878
Each (In a Tube of 50)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 121-8550
FabrikantnummerISO122JP
€ 25,644
Each (In a Tube of 25)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 183-1683
FabrikantnummerAD210BN
FabrikantAnalog Devices
€ 127,547
Each (In a Tube of 9)
Aantal stuks
Single - 15 V 120dB - 1 100V/V Through Hole PDIP 12 53.3 x 25.4 x 8.91mm 8.91mm 25.4mm 53.3mm
RS-stocknr. 693-5974
FabrikantnummerACPL-C78A-000E
FabrikantBroadcom
€ 11,23
Each
Aantal stuks
Single - 5 V 76dB - 1 18.15dB Surface Mount SOIC 8 3.18 x 5.85 x 6.81mm 3.18mm 6.81mm 5.85mm
RS-stocknr. 796-8742
FabrikantnummerADUM4190TRIZ
FabrikantAnalog Devices
€ 3,29
Each (In a Pack of 5)
Aantal stuks
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-stocknr. 922-6513
FabrikantnummerACPL-C87BT-000E
FabrikantBroadcom
€ 7,855
Each (In a Tube of 80)
Aantal stuks
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-stocknr. 159-9277
FabrikantnummerADUM4190BRIZ
FabrikantAnalog Devices
€ 2,318
Each (In a Tube of 37)
Aantal stuks
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-stocknr. 914-0090
FabrikantnummerAD215BY
FabrikantAnalog Devices
€ 94,64
Each
Aantal stuks
Dual ±15V - 120dB - 1 - Through Hole SIP 12 63 x 8.3 x 21.4mm 21.4mm 8.3mm 63mm
RS-stocknr. 734-4966
FabrikantnummerACPL-785J-000E
FabrikantBroadcom
€ 5,40
Each
Aantal stuks
Single - 4.5 → 5.5 V - - - - Surface Mount SOIC 16 10.312 x 7.493 x 3.505mm 3.505mm 7.493mm 10.31mm
RS-stocknr. 169-6523
FabrikantnummerAD210JN
FabrikantAnalog Devices
€ 111,08
Each
Aantal stuks
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-stocknr. 786-3151
FabrikantnummerADUM3190ARQZ
FabrikantAnalog Devices
€ 2,28
Each (In a Pack of 2)
Aantal stuks
Single - 3 → 20 V - - 2 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS-stocknr. 796-8745
FabrikantnummerADUM3190TRQZ
FabrikantAnalog Devices
€ 2,761
Each (In a Pack of 7)
Aantal stuks
Single - 3 → 20 V 72dB - 1 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS-stocknr. 758-9579
FabrikantnummerAD204KN
FabrikantAnalog Devices
€ 84,78
Each
Aantal stuks
- - - 110dB - 2 1 → 100V/V Through Hole PDIP 10 53.3 x 17.8 x 8.52mm 8.52mm 17.8mm 53.3mm
RS-stocknr. 734-4931
FabrikantnummerACPL-C790-000E
FabrikantBroadcom
€ 5,15
Each
Aantal stuks
Single - 3 → 5.5 V - - 1 8.44V/V Surface Mount SOIC 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
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