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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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. 451-007
Mfr. Part No.HCPL-7800A-000E
BrandBroadcom
PHP614.22
Each
units
Single - 5 V 76dB - 1 18.14dB Through Hole PDIP 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS Stock No. 922-5687
Mfr. Part No.HCPL-7800A-000E
BrandBroadcom
PHP536.041
Each (In a Tube of 50)
units
Single - 5 V 76dB - 1 18.14dB Through Hole PDIP 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS Stock No. 914-0090
Mfr. Part No.AD215BY
PHP5,822.06
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
PHP5,337.671
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. 768-7907
Mfr. Part No.ACPL-C87B-000E
BrandBroadcom
PHP378.06
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. 830-4971
Mfr. Part No.ACPL-7900-300E
BrandBroadcom
PHP281.40
Each (In a Pack of 2)
units
Single - 3 → 5.5 V - - 1 8.44V/V Surface Mount PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS Stock No. 740-5279
Mfr. Part No.NJM2505AF-TE1
PHP45.552
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. 450-903
Mfr. Part No.HCPL-7800A-300E
BrandBroadcom
PHP616.90
Each
units
Single - 5 V 76dB - 1 18.14dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS Stock No. 768-7893
Mfr. Part No.ACPL-C870-000E
BrandBroadcom
PHP278.25
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. 922-5665
Mfr. Part No.HCPL-7800A-300E
BrandBroadcom
PHP527.63
Each (In a Tube of 50)
units
Single - 5 V 76dB - 1 18.14dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS Stock No. 922-6510
Mfr. Part No.ACPL-7900-300E
BrandBroadcom
PHP238.88
Each (In a Tube of 50)
units
Single - 3 → 5.5 V - - 1 8.44V/V Surface Mount PDIP 8 9.8 x 6.35 x 3.56mm 3.56mm 6.35mm 9.8mm
RS Stock No. 922-6762
Mfr. Part No.ACPL-C870-000E
BrandBroadcom
PHP236.25
Each (In a Tube of 80)
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. 922-6769
Mfr. Part No.ACPL-C87B-000E
BrandBroadcom
PHP329.338
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. 818-8262
Mfr. Part No.ACPL-782T-000E
BrandBroadcom
PHP604.80
Each
units
- - - - - - - Through Hole - - - - - -
RS Stock No. 734-4931
Mfr. Part No.ACPL-C790-000E
BrandBroadcom
PHP312.20
Each
units
Single - 3 → 5.5 V - - 1 8.44V/V Surface Mount SOIC 8 5.85 x 6.807 x 3.18mm 3.18mm 6.807mm 5.85mm
RS Stock No. 866-0215
Mfr. Part No.ISO124P
PHP945.00
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. 734-4966
Mfr. Part No.ACPL-785J-000E
BrandBroadcom
PHP320.78
Each
units
Single - 4.5 → 5.5 V - - - - Surface Mount SOIC 16 10.312 x 7.493 x 3.505mm 3.505mm 7.493mm 10.31mm
RS Stock No. 759-2196
Mfr. Part No.AD202KY
PHP9,195.02
Each
units
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 Stock No. 450-868
Mfr. Part No.HCPL-7800-300E
BrandBroadcom
PHP493.73
Each
units
Single - 5 V 76dB - 1 18.31dB Surface Mount PDIP SMD 8 3.56 x 9.8 x 6.35mm 3.56mm 6.35mm 9.8mm
RS Stock No. 178-3179
Mfr. Part No.ACPL-782T-000E
BrandBroadcom
PHP527.63
Each (In a Tube of 50)
units
- - - - - - - Through Hole DIP - - - - -
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