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. 106-7017
FabrikantnummerAD215AY
FabrikantAnalog Devices
€ 76,486
Each (In a Tube of 8)
Aantal stuks
Dual ±15V - - - 1 20dB Through Hole SIP 12 21.4 x 63 x 8.3mm 21.4mm 8.3mm 63mm
RS-stocknr. 231-5196
FabrikantnummerAD215AY
FabrikantAnalog Devices
€ 99,78
Each
Aantal stuks
Dual ±15V - - - 1 20dB Through Hole SIP 12 21.4 x 63 x 8.3mm 21.4mm 8.3mm 63mm
RS-stocknr. 796-8789
FabrikantnummerAD210AN
FabrikantAnalog Devices
€ 104,09
Each
Aantal stuks
Dual ±15V - 120dB - 1 100V/V Through Hole PDIP 12 53.3 x 25 x 8.91mm 8.91mm 25mm 53.3mm
RS-stocknr. 912-9983
FabrikantnummerAD210AN
FabrikantAnalog Devices
€ 87,149
Each (In a Tube of 9)
Aantal stuks
Dual ±15V - 120dB - 1 100V/V Through Hole PDIP 12 53.3 x 25 x 8.91mm 8.91mm 25mm 53.3mm
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. 759-2196
FabrikantnummerAD202KY
FabrikantAnalog Devices
€ 71,86
Each
Aantal stuks
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-stocknr. 759-2187
FabrikantnummerAD202KN
FabrikantAnalog Devices
€ 62,19
Each
Aantal stuks
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-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. 912-9787
FabrikantnummerAD202KY
FabrikantAnalog Devices
€ 55,731
Each (In a Tube of 9)
Aantal stuks
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-stocknr. 145-6786
FabrikantnummerAD204KN
FabrikantAnalog Devices
€ 48,726
Each (In a Tube of 9)
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. 786-3158
FabrikantnummerADUM4190ARIZ
FabrikantAnalog Devices
€ 2,635
Each (In a Pack of 2)
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. 159-9277
FabrikantnummerADUM4190BRIZ
FabrikantAnalog Devices
€ 2,252
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. 169-6523
FabrikantnummerAD210JN
FabrikantAnalog Devices
€ 95,84
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. 159-8059
FabrikantnummerAD204KY
FabrikantAnalog Devices
€ 45,621
Each (In a Tube of 9)
Aantal stuks
- - - 110dB - 2 1 → 100V/V Through Hole SIP 10 52.8 x 6.6 x 15.9mm 15.9mm 6.6mm 52.8mm
RS-stocknr. 796-8742
FabrikantnummerADUM4190TRIZ
FabrikantAnalog Devices
€ 3,072
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. 796-8745
FabrikantnummerADUM3190TRQZ
FabrikantAnalog Devices
€ 2,676
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. 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. 796-8748
FabrikantnummerADUM4190SRIZ
FabrikantAnalog Devices
€ 2,832
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. 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. 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