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
9,60 €
Each
Aantal stuks
- - - - - - - Surface Mount DIP - - - - -
RS-stocknr. 178-3173
FabrikantnummerACPL-782T-300E
FabrikantBroadcom
8,036 €
Each (In a Tube of 50)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 263-497
FabrikantnummerISO122P
27,64 €
Each
Aantal stuks
Dual ±12 V, ±15 V, ±5 V, ±9 V - - - 1 0dB Through Hole PDIP 8 3.94 x 20.01 x 6.61mm 3.94mm 6.61mm 20.01mm
RS-stocknr. 121-8263
FabrikantnummerISO122P
24,35 €
Each (In a Tube of 25)
Aantal stuks
Dual ±12 V, ±15 V, ±5 V, ±9 V - - - 1 0dB Through Hole PDIP 8 3.94 x 20.01 x 6.61mm 3.94mm 6.61mm 20.01mm
RS-stocknr. 768-7897
FabrikantnummerACPL-C87A-000E
FabrikantBroadcom
5,44 €
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. 106-7018
FabrikantnummerAD202JY
FabrikantAnalog Devices
49,32 €
Each (In a Tube of 9)
Aantal stuks
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-stocknr. 866-0215
FabrikantnummerISO124P
15,55 €
Each (In a Tube of 25)
Aantal stuks
Dual ±4.5 → ±18V - 140dB - 1 - Through Hole PDIP 8 21.34 x 7.11 x 4.95mm 4.95mm 7.11mm 21.34mm
RS-stocknr. 369-5774
FabrikantnummerAD202JY
FabrikantAnalog Devices
58,513 €
Each (In a Tube of 9)
Aantal stuks
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-stocknr. 922-6765
FabrikantnummerACPL-C87A-000E
FabrikantBroadcom
4,626 €
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. 300-8243
FabrikantnummerISO124P
18,12 €
Each
Aantal stuks
Dual ±12 V, ±15 V, ±5 V, ±9 V - - - 1 0dB Through Hole PDIP 8 3.94 x 20.01 x 6.61mm 3.94mm 6.61mm 20.01mm
RS-stocknr. 922-5655
FabrikantnummerHCPL-7800-300E
FabrikantBroadcom
6,88 €
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. 450-868
FabrikantnummerHCPL-7800-300E
FabrikantBroadcom
7,89 €
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. 178-3179
FabrikantnummerACPL-782T-000E
FabrikantBroadcom
8,604 €
Each (In a Tube of 50)
Aantal stuks
- - - - - - - Through Hole DIP - - - - -
RS-stocknr. 168-9962
FabrikantnummerSI8261BCA-C-IS
FabrikantSilicon Labs
1,08 €
Each (In a Tube of 96)
Aantal stuks
Single - 5 → 30 V - Rail to Rail Output 1 - Surface Mount SOIC 8 5 x 4 x 1.55mm 1.55mm 5mm 5mm
RS-stocknr. 795-1504
FabrikantnummerSi8261BCA-C-IS
FabrikantSilicon Labs
1,22 €
Each (In a Pack of 5)
Aantal stuks
Single - 5 → 30 V - Rail to Rail Output 1 - Surface Mount SOIC 8 5 x 4 x 1.55mm 1.55mm 5mm 5mm
RS-stocknr. 818-8262
FabrikantnummerACPL-782T-000E
FabrikantBroadcom
9,86 €
Each
Aantal stuks
- - - - - - - Through Hole - - - - - -
RS-stocknr. 369-5819
FabrikantnummerAD210JN
FabrikantAnalog Devices
77,478 €
Each (In a Tube of 9)
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. 145-7087
FabrikantnummerAD204JY
FabrikantAnalog Devices
41,37 €
Each (In a Tube of 9)
Aantal stuks
- - - 130dB - 1 40dB Through Hole SIP 11 15.9 x 52.8 x 6.3mm 15.9mm 6.3mm 52.8mm
RS-stocknr. 910-8257
FabrikantnummerACPL-798J-000E
FabrikantBroadcom
5,44 €
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. 633-391
FabrikantnummerAD204JY
FabrikantAnalog Devices
47,85 €
Each
Aantal stuks
- - - 130dB - 1 40dB Through Hole SIP 11 15.9 x 52.8 x 6.3mm 15.9mm 6.3mm 52.8mm
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