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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제품설명 단가 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 제품 번호 106-7018
제조사 부품 번호AD202JY
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₩110,993.95
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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 제품 번호 231-5196
제조사 부품 번호AD215AY
제조사Analog Devices
₩129,034.40
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Dual ±15V - - - 1 20dB Through Hole SIP 12 21.4 x 63 x 8.3mm 21.4mm 8.3mm 63mm
RS 제품 번호 369-5774
제조사 부품 번호AD202JY
제조사Analog Devices
₩110,993.95
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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 제품 번호 106-7017
제조사 부품 번호AD215AY
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₩131,526.80
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Dual ±15V - - - 1 20dB Through Hole SIP 12 21.4 x 63 x 8.3mm 21.4mm 8.3mm 63mm
RS 제품 번호 786-3151
제조사 부품 번호ADUM3190ARQZ
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₩4,014.50
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Single - 3 → 20 V - - 2 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS 제품 번호 786-3154
제조사 부품 번호ADUM3190BRQZ
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₩4,043.95
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Single - 3 → 20 V - - 2 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS 제품 번호 796-8748
제조사 부품 번호ADUM4190SRIZ
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₩4,739.90
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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 제품 번호 796-8736
제조사 부품 번호ADUM3190SRQZ
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₩4,192.75
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Single - 3 → 20 V 72dB - 1 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS 제품 번호 633-391
제조사 부품 번호AD204JY
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₩101,914.05
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- - - 130dB - 1 40dB Through Hole SIP 11 15.9 x 52.8 x 6.3mm 15.9mm 6.3mm 52.8mm
RS 제품 번호 786-3158
제조사 부품 번호ADUM4190ARIZ
제조사Analog Devices
₩4,429.90
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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 제품 번호 786-3167
제조사 부품 번호ADUM4190BRIZ
제조사Analog Devices
₩4,702.70
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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 제품 번호 169-6523
제조사 부품 번호AD210JN
제조사Analog Devices
₩168,340.85
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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 제품 번호 796-8745
제조사 부품 번호ADUM3190TRQZ
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₩4,784.85
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Single - 3 → 20 V 72dB - 1 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS 제품 번호 758-9579
제조사 부품 번호AD204KN
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₩116,634.40
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- - - 110dB - 2 1 → 100V/V Through Hole PDIP 10 53.3 x 17.8 x 8.52mm 8.52mm 17.8mm 53.3mm
RS 제품 번호 796-8742
제조사 부품 번호ADUM4190TRIZ
제조사Analog Devices
₩5,026.65
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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 제품 번호 145-7087
제조사 부품 번호AD204JY
제조사Analog Devices
₩100,618.25
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- - - 130dB - 1 40dB Through Hole SIP 11 15.9 x 52.8 x 6.3mm 15.9mm 6.3mm 52.8mm