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. 300-8243
FabrikantnummerISO124P
17,63 €
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. 866-0215
FabrikantnummerISO124P
15,545 €
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. 461-8267
FabrikantnummerISO122JP
22,28 €
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. 121-8550
FabrikantnummerISO122JP
20,017 €
Each (In a Tube of 25)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 817-5786
FabrikantnummerAMC1100DUB
4,60 €
Each
Aantal stuks
Dual 5V - 108dB - 1 - Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm
RS-stocknr. 197-7179
FabrikantnummerISO122P
24,32 €
Each (In a Tube of 25)
Aantal stuks
Single ±15V - 140dB - - - - PDIP 8 - - - -
RS-stocknr. 300-8259
FabrikantnummerISO124U
18,36 €
Each
Aantal stuks
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
RS-stocknr. 121-8514
FabrikantnummerISO124U
16,949 €
Each (In a Tube of 20)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 288-777
FabrikantnummerISO122U
28,35 €
Each
Aantal stuks
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-stocknr. 923-6740
FabrikantnummerISO122JU
21,636 €
Each (In a Tube of 20)
Aantal stuks
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
RS-stocknr. 121-9701
FabrikantnummerAMC1100DUB
3,883 €
Each (In a Tube of 50)
Aantal stuks
Dual 5V - 108dB - 1 - Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm
RS-stocknr. 825-3164
FabrikantnummerAMC1200SDUBR
4,02 €
Each (In a Pack of 2)
Aantal stuks
Single - 5 V 108dB - 1 8dB Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm
RS-stocknr. 121-8271
FabrikantnummerISO122U
26,143 €
Each (In a Tube of 20)
Aantal stuks
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-stocknr. 197-7180
FabrikantnummerISO122P
27,62 €
Each
Aantal stuks
Single ±15V - 140dB - - - - PDIP 8 - - - -
RS-stocknr. 121-9702
FabrikantnummerAMC1200SDUB
4,076 €
Each (In a Tube of 50)
Aantal stuks
Dual 5V - - - 1 8 Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm
RS-stocknr. 709-2324
FabrikantnummerISO122JU
23,45 €
Each
Aantal stuks
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
RS-stocknr. 817-5789
FabrikantnummerAMC1200SDUB
4,82 €
Each
Aantal stuks
Dual 5V - - - 1 8 Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm
RS-stocknr. 921-3000
FabrikantnummerAMC1200SDUBR
2,502 €
Each (On a Reel of 350)
Aantal stuks
Single - 5 V 108dB - 1 8dB Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm