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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รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 169-6523
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD210JN
THB3,358.72
Each
Units
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 Stock No. 121-9701
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AMC1100DUB
THB139.179
Each (In a Tube of 50)
Units
Dual 5V - 108dB - 1 - Surface Mount SOP 8 9.55 x 6.67 x 3.35mm 3.35mm 6.67mm 9.55mm
RS Stock No. 740-5279
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.NJM2505AF-TE1
THB33.752
Each: (In a Pack of 5)
Units
Single - 4.5 → 9 V - - 1 1dB Surface Mount SOT-23 5 2.9 x 1.6 x 1.1mm 1.1mm 1.6mm 2.9mm
RS Stock No. 914-0090
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD215BY
THB3,136.88
Each
Units
Dual ±15V - 120dB - 1 - Through Hole SIP 12 63 x 8.3 x 21.4mm 21.4mm 8.3mm 63mm
RS Stock No. 106-7013
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD202JN
THB2,457.132
Each (In a Tube of 9)
Units
Single - 15 V 130dB - 1 40dB Through Hole PDIP 11 8.9 x 53.3 x 17.8mm 8.9mm 17.8mm 53.3mm
RS Stock No. 693-5974
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACPL-C78A-000E
Brand :Broadcom
THB351.84
Each
Units
Single - 5 V 76dB - 1 18.15dB Surface Mount SOIC 8 3.18 x 5.85 x 6.81mm 3.18mm 6.81mm 5.85mm
RS Stock No. 106-7018
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD202JY
THB2,431.763
Each (In a Tube of 9)
Units
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 Stock No. 121-8263
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ISO122P
THB825.174
Each (In a Tube of 25)
Units
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 Stock No. 796-8742
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADUM4190TRIZ
THB111.62
Each: (In a Pack of 5)
Units
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 Stock No. 910-8257
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACPL-798J-000E
Brand :Broadcom
THB201.93
Each
Units
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 Stock No. 145-7698
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADUM4190SRIZ
THB84.432
Each (In a Tube of 37)
Units
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 Stock No. 786-3167
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADUM4190BRIZ
THB103.67
Each: (In a Pack of 2)
Units
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 Stock No. 922-6633
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACPL-C78A-000E
Brand :Broadcom
THB306.652
Each (In a Tube of 80)
Units
Single - 5 V 76dB - 1 18.15dB Surface Mount SOIC 8 3.18 x 5.85 x 6.81mm 3.18mm 6.81mm 5.85mm
RS Stock No. 168-9952
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI8261ACA-C-IS
Brand :Silicon Labs
THB30.435
Each (In a Tube of 96)
Units
Single - 5 → 30 V - Rail to Rail Output 1 - Surface Mount SOIC 8 5 x 4 x 1.55mm 1.55mm 5mm 5mm
RS Stock No. 768-7893
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACPL-C870-000E
Brand :Broadcom
THB164.94
Each
Units
Single - 4.5 → 5.5 V -78dB - 1 1.03V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS Stock No. 825-3164
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AMC1200SDUBR
THB179.12
Each: (In a Pack of 2)
Units
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 Stock No. 786-3151
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADUM3190ARQZ
THB83.63
Each: (In a Pack of 2)
Units
Single - 3 → 20 V - - 2 80dB Surface Mount QSOP 16 5 x 4.01 x 1.65mm 1.65mm 4.01mm 5mm
RS Stock No. 709-2324
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ISO122JUE4
THB864.01
Each
Units
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 Stock No. 168-9955
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SI8261BAA-C-IS
Brand :Silicon Labs
THB39.43
Each (In a Tube of 96)
Units
Single - 5 → 30 V - Rail to Rail Output 1 - Surface Mount SOIC 8 5 x 4 x 1.55mm 1.55mm 5mm 5mm
RS Stock No. 146-4417
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ACNT-H511-000E
Brand :Broadcom
THB137.50
Each: (In a Pack of 2)
Units
Single - Maximum of 24 V - - 1 - Surface Mount SO8 8 13.6 x 6.24 x 3.6mm 3.6mm 6.24mm 13.6mm
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