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. 803-0747
FabrikantnummerACPL-782T-300E
FabrikantBroadcom
11,12 €
Each
Aantal stuks
- - - - - - - Surface Mount DIP - - - - -
RS-stocknr. 178-3173
FabrikantnummerACPL-782T-300E
FabrikantBroadcom
9,268 €
Each (In a Tube of 50)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 922-6765
FabrikantnummerACPL-C87A-000E
FabrikantBroadcom
4,274 €
Each (In a Tube of 80)
Aantal stuks
Single - 4.5 → 5.5 V -78dB - 1 1.01V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS-stocknr. 768-7897
FabrikantnummerACPL-C87A-000E
FabrikantBroadcom
5,49 €
Each
Aantal stuks
Single - 4.5 → 5.5 V -78dB - 1 1.01V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS-stocknr. 450-868
FabrikantnummerHCPL-7800-300E
FabrikantBroadcom
7,96 €
Each
Aantal stuks
Single - 5 V 76dB - 1 18.31dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS-stocknr. 922-5655
FabrikantnummerHCPL-7800-300E
FabrikantBroadcom
7,331 €
Each (In a Tube of 50)
Aantal stuks
Single - 5 V 76dB - 1 18.31dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS-stocknr. 818-8262
FabrikantnummerACPL-782T-000E
FabrikantBroadcom
10,14 €
Each
Aantal stuks
- - - - - - - Through Hole - - - - - -
RS-stocknr. 178-3179
FabrikantnummerACPL-782T-000E
FabrikantBroadcom
8,844 €
Each (In a Tube of 50)
Aantal stuks
- - - - - - - Through Hole DIP - - - - -
RS-stocknr. 922-6731
FabrikantnummerACPL-7900-000E
FabrikantBroadcom
2,783 €
Each (In a Tube of 50)
Aantal stuks
Single - 3 → 5.5 V - - 1 8.44V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-stocknr. 734-4988
FabrikantnummerACPL-7900-000E
FabrikantBroadcom
4,57 €
Each
Aantal stuks
Single - 3 → 5.5 V - - 1 8.44V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS-stocknr. 910-8257
FabrikantnummerACPL-798J-000E
FabrikantBroadcom
5,59 €
Each
Aantal stuks
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-stocknr. 178-3139
FabrikantnummerACPL-798J-000E
FabrikantBroadcom
4,877 €
Each (In a Tube of 45)
Aantal stuks
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-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. 714-0209
FabrikantnummerACPL-C79A-000E
FabrikantBroadcom
5,67 €
Each
Aantal stuks
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-stocknr. 178-3206
FabrikantnummerACPL-C784-000E
FabrikantBroadcom
4,107 €
Each (In a Tube of 80)
Aantal stuks
Single - 5 V 76dB - 1 18.49dB Surface Mount SSOP 8 3.18 x 5.85 x 6.81mm 3.18mm 6.81mm 5.85mm
RS-stocknr. 178-3187
FabrikantnummerHCPL-7510-300E
FabrikantBroadcom
3,909 €
Each (In a Tube of 50)
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. 922-6719
FabrikantnummerACPL-C790-000E
FabrikantBroadcom
4,466 €
Each (In a Tube of 80)
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
RS-stocknr. 178-3131
FabrikantnummerACPL-785J-000E
FabrikantBroadcom
2,646 €
Each (In a Tube of 45)
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. 830-4971
FabrikantnummerACPL-7900-300E
FabrikantBroadcom
4,92 €
Each (In a Pack of 2)
Aantal stuks
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-stocknr. 146-6143
FabrikantnummerACNT-H870-000E
FabrikantBroadcom
7,20 €
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