Isolation Amplifier | Single Ended | Iso Amp | RS
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    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.

    124 Produkter som visas för Isolation Amplifiers

    Broadcom
    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
    Texas Instruments
    Dual
    ±4.5 → ±18V
    -
    140dB
    -
    1
    -
    Through Hole
    PDIP
    8
    21.34 x 7.11 x 4.95mm
    4.95mm
    7.11mm
    21.34mm
    Texas Instruments
    Single
    ±15V
    -
    140dB
    -
    -
    -
    -
    PDIP
    8
    -
    -
    -
    -
    Broadcom
    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
    Broadcom
    Dual
    5V
    -
    140dB
    -
    1
    -
    Surface Mount
    SOIC
    16
    3.51 x 10.31 x 7.49mm
    3.51mm
    7.49mm
    10.31mm
    Texas Instruments
    Analogue, Digital
    3.3 or 5V
    3.3 or 5 V
    -
    -
    1
    -
    -
    SOIC
    8
    -
    -
    -
    -
    Broadcom
    Single
    -
    5 V
    76dB
    -
    1
    18.49dB
    Surface Mount
    SSOP
    8
    3.18 x 5.85 x 6.81mm
    3.18mm
    6.81mm
    5.85mm
    Texas Instruments
    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
    Texas Instruments
    Single
    ±15V
    -
    140dB
    -
    -
    -
    -
    PDIP
    8
    -
    -
    -
    -
    WAGO
    Analogue
    -
    ±5 V
    -
    No
    1
    -
    -
    DIP
    8
    -
    -
    -
    -
    Texas Instruments
    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
    Broadcom
    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
    Broadcom
    Single
    -
    4.5 → 5.5 V
    -78dB
    -
    1
    1.01V/V
    Surface Mount
    SSOP
    8
    5.85 x 6.807 x 3.18mm
    3.18mm
    6.807mm
    5.85mm
    Broadcom
    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
    Texas Instruments
    Analogue, Digital
    3.3 or 5V
    3.3 or 5 V
    -
    -
    1
    -
    -
    SOIC
    8
    -
    -
    -
    -
    Broadcom
    Single
    -
    Maximum of 5.5 V
    76dB
    -
    1
    8.08V/V
    Surface Mount
    DIP8 - Gull Wing
    8
    9.8 x 6.35 x 3.56mm
    3.56mm
    6.35mm
    9.8mm
    Broadcom
    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
    Broadcom
    Single
    -
    4.5 → 5.5 V
    -
    -
    2
    8.24V/V
    Surface Mount
    SSOP
    8
    5.85 x 6.807 x 3.18mm
    3.18mm
    6.807mm
    5.85mm
    Texas Instruments
    Dual
    -
    5.5 V
    -100dB
    Rail to Rail Input/Output
    1
    -
    -
    SOIC
    8
    -
    -
    -
    -
    Broadcom
    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
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