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.

...
Read more Read less

Filters

Viewing 1 - 20 of 117 products
Results per page
Description 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. 830-4987
Mfr. Part No.ACPL-C87AT-000E
BrandBroadcom
HK$95.09
Each
units
Single - 3 → 5.5 V - - 1 1.01V/V Surface Mount SOIC 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS Stock No. 178-3213
Mfr. Part No.ACPL-C87AT-000E
BrandBroadcom
HK$73.68
Each (In a Tube of 80)
units
Single - 3 → 5.5 V - - 1 1.01V/V Surface Mount SOIC 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS Stock No. 795-1453
Mfr. Part No.Si8261ACA-C-IS
HK$10.27
Each (In a Pack of 10)
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. 168-9952
Mfr. Part No.SI8261ACA-C-IS
HK$9.67
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. 914-0090
Mfr. Part No.AD215BY
HK$830.78
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. 160-3298
Mfr. Part No.AD215BY
HK$820.293
Each (In a Tube of 8)
units
Dual ±15V - 120dB - 1 - Through Hole SIP 12 63 x 8.3 x 21.4mm 21.4mm 8.3mm 63mm
RS Stock No. 121-8550
Mfr. Part No.ISO122JP
HK$188.433
Each (In a Tube of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 734-4984
Mfr. Part No.ACPL-790B-000E
BrandBroadcom
HK$60.41
Each
units
Single - 3 → 5.5 V - - 1 8.24V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS Stock No. 922-6769
Mfr. Part No.ACPL-C87B-000E
BrandBroadcom
HK$52.63
Each (In a Tube of 80)
units
Single - 4.5 → 5.5 V -78dB - 1 1.005V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS Stock No. 768-7907
Mfr. Part No.ACPL-C87B-000E
BrandBroadcom
HK$62.22
Each
units
Single - 4.5 → 5.5 V -78dB - 1 1.005V/V Surface Mount SSOP 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS Stock No. 106-7018
Mfr. Part No.AD202JY
HK$667.11
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. 231-5196
Mfr. Part No.AD215AY
HK$653.00
Each
units
Dual ±15V - - - 1 20dB Through Hole SIP 12 21.4 x 63 x 8.3mm 21.4mm 8.3mm 63mm
RS Stock No. 461-8267
Mfr. Part No.ISO122JP
HK$187.91
Each
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. 178-3172
Mfr. Part No.ACPL-790B-000E
BrandBroadcom
HK$52.63
Each (In a Tube of 50)
units
Single - 3 → 5.5 V - - 1 8.24V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS Stock No. 106-7017
Mfr. Part No.AD215AY
HK$700.606
Each (In a Tube of 8)
units
Dual ±15V - - - 1 20dB Through Hole SIP 12 21.4 x 63 x 8.3mm 21.4mm 8.3mm 63mm
RS Stock No. 369-5774
Mfr. Part No.AD202JY
HK$667.11
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. 734-4988
Mfr. Part No.ACPL-7900-000E
BrandBroadcom
HK$45.35
Each
units
Single - 3 → 5.5 V - - 1 8.44V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS Stock No. 866-0215
Mfr. Part No.ISO124P
HK$154.03
Each (In a Tube of 25)
units
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 Stock No. 922-5674
Mfr. Part No.HCPL-7840-300E
BrandBroadcom
HK$49.007
Each (In a Tube of 50)
units
Single - 5 V 76.1dB - 1 18.49dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS Stock No. 178-3171
Mfr. Part No.ACPL-790A-000E
BrandBroadcom
HK$47.679
Each (In a Tube of 50)
units
Single - 3 → 5.5 V - - 1 8.28V/V Through Hole PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
Related Products
As the fuse allows for the starting surge ...
Description:
As the fuse allows for the starting surge of a motor its full load current must not exceed the lesser of the dual current rating. e.g. 20 M25 must not have a continuous load of greater than 20A. Breaking capacity ...
Semiconductor fuse links have a precise pre-determined performance ...
Description:
Semiconductor fuse links have a precise pre-determined performance which ensures a low arc voltage and minimum let through current. Semiconductor fuses are suited to application in the field of traction, distribution of power, motor drives and in process industries. Melt ...
Breaking capacity 80kA at 415Vac and 40kA at ...
Description:
Breaking capacity 80kA at 415Vac and 40kA at 250Vdc (bolted connection types) (E1 type 16·5kA at 240Vac)Rated at 415Vac/250Vdc (bolted connection types) (E1 type 240Vac)Electricity Supply Authorities, Lloyd’s Register of Shipping Approvals and ASTA 20 certified.