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    Instrumentation Amplifiers

    Instrumentation amplifiers (sometimes shortened to In-Amps) are a type of precision gain block used in electronic and measurement test equipment. Instrumentation amplifiers act as a differential amplifier; a type of electronic amplifier that amplifies the voltage difference between two inputs but suppresses any voltage signals that are common to the two inputs. RS offer a range of instrumentation amplifiers from several trusted brands in the industry, including Analog Devices, Microchip, Texas Instruments, and more.

    How do instrumentation amplifiers work?

    Instrumentation amplifiers are almost always composed of 3 op-amps (operational amplifiers) and several resistors. They provide the most important function of CMR (common-mode rejection) by cancelling out any signals that have the same potential as received by both of the inputs. Any signals that have different potentials get amplified. They are used for low frequency signals (such as <1MHz), which they amplify whilst also cutting out any common-mode noise that may be present in the input signal.

    What are the instrumentation amplifiers used for?

    An instrumentation amplifier measures small signals in a noisy environment. The noise generally is "common-mode noise" (the difference between the noise-free common-mode voltage and the actual common-mode voltage). An instrumentation amplifier uses its common-mode rejection to distinguish the noise from the signal of interest. Instrumentation amplifiers are needed in nearly every field of electronics, particularly in the test and measurement industry. They can be used as a voltage follower, selective inversion circuit, a current-to-voltage converter, active rectifier, integrator, a variety of filters, and a voltage comparator.

    Unlike instrumentation amplifiers (In Amp), operational amplifiers (Op-Amp) are high-gain voltage amplifying devices with a differential input.

    Typical applications

    • Test & Measurement Industrial Devices
    • Data Acquisition Devices
    • Medical Devices

    228 สินค้าที่แสดงสำหรับ Instrumentation Amplifiers

    • RS Stock No. 197-7159
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA128P
    Each
    THB893.41
    Texas Instruments
    Dual
    PDIP
    Through Hole
    ±15 V
    8
    -
    -
    50µV
    -
    -
    -
    -
    -
    -
    • RS Stock No. 755-9556
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. MCP6N11-100E/SN
    Each: (In a Pack of 2)
    THB63.44
    Microchip
    Single
    SOIC
    Surface Mount
    1.8 → 5.5 V
    8
    -
    Rail to Rail Input/Output
    0.35V
    -40 °C
    +125 °C
    -
    88dB
    35MHz
    0.8 mA
    • RS Stock No. 197-7161
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA128U
    Each
    THB525.56
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    ±15 V
    8
    -
    -
    50µV
    -
    -
    -
    -
    -
    -
    • RS Stock No. 133-0171P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA188ID
    Each (Supplied in a Tube)
    THB198.14
    Texas Instruments
    Dual, Single
    SOIC
    Surface Mount
    4 → 36 V
    8
    ±2 → ±18V
    Rail to Rail Output
    ±55µV
    -40 °C
    +125 °C
    50kΩ
    102 dB @ 1000 Gain
    600kHz
    ±10 mA
    • RS Stock No. 647-643
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA110KP
    Each
    THB997.30
    Texas Instruments
    Dual
    PDIP
    Through Hole
    -
    16
    ±15V
    No
    500µV
    -25 °C
    +85 °C
    5000GΩ
    106dB
    2.5MHz
    4.5 mA
    • RS Stock No. 146-0294
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. MCP6N16-001E/MS
    Each (In a Tube of 100)
    THB75.813
    Microchip
    Single
    MSOP
    Surface Mount
    1.8 → 5.5 V
    8
    -
    Rail to Rail Output
    85µV
    -40 °C
    +125 °C
    1kΩ
    89dB
    500kHz
    -
    • RS Stock No. 197-7137
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA114AP
    Each
    THB407.11
    Texas Instruments
    Dual
    PDIP
    Through Hole
    ±15 V
    8
    -
    -
    50µV
    -
    -
    -
    -
    1MHz
    -
    • RS Stock No. 660-5279P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA129P
    Each (Supplied in a Tube)
    THB352.88
    Texas Instruments
    Dual
    PDIP
    Through Hole
    -
    8
    ±15V
    No
    -
    -40 °C
    +85 °C
    100GΩ
    80dB
    -
    -
    • RS Stock No. 252-1593P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA125PA
    Each (Supplied in a Tube)
    THB251.55
    Texas Instruments
    Dual, Single
    PDIP
    Through Hole
    5 V
    16
    ±15V
    No
    0.5mV
    -55 °C
    +125 °C
    100GΩ
    72dB
    -
    -
    • RS Stock No. 252-1593
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA125PA
    Each
    THB251.55
    Texas Instruments
    Dual, Single
    PDIP
    Through Hole
    5 V
    16
    ±15V
    No
    0.5mV
    -55 °C
    +125 °C
    100GΩ
    72dB
    -
    -
    • RS Stock No. 660-5604P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. PGA204BU
    Each (Supplied in a Tube)
    THB1,155.90
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    -
    16
    ±15V
    No
    50µV
    -40 °C
    +85 °C
    10GΩ
    80dB
    -
    6.5 mA
    • RS Stock No. 197-7161P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA128U
    Each (Supplied in a Tube)
    THB525.56
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    ±15 V
    8
    -
    -
    50µV
    -
    -
    -
    -
    -
    -
    • RS Stock No. 660-4853
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA217AIDWT
    Each
    THB307.46
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    -
    16
    ±15V
    No
    -
    -40 °C
    +125 °C
    0.06GΩ
    70dB
    -
    -
    • RS Stock No. 121-8274
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. PGA204AU
    Each (In a Tube of 40)
    THB614.723
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    -
    16
    ±15V
    -
    125µV
    -40 °C
    +85 °C
    10GΩ
    75dB
    1MHz
    7.5 mA
    • RS Stock No. 660-4415
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. PGA204BP
    Each
    THB1,327.31
    Texas Instruments
    Dual
    PDIP
    Through Hole
    -
    16
    ±15V
    No
    -
    -40 °C
    +85 °C
    10GΩ
    80dB
    -
    7.5 mA
    • RS Stock No. 197-7137P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA114AP
    Each (Supplied in a Tube)
    THB407.11
    Texas Instruments
    Dual
    PDIP
    Through Hole
    ±15 V
    8
    -
    -
    50µV
    -
    -
    -
    -
    1MHz
    -
    • RS Stock No. 100-3847
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA128UA
    Each (In a Tube of 75)
    THB295.527
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    -
    8
    ±15V
    -
    125µV
    -40 °C
    +85 °C
    100GΩ
    73dB
    1.3MHz
    -
    • RS Stock No. 197-7136
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA114AP
    Each (In a Tube of 50)
    THB343.307
    Texas Instruments
    Dual
    PDIP
    Through Hole
    ±15 V
    8
    -
    -
    50µV
    -
    -
    -
    -
    1MHz
    -
    • RS Stock No. 288-749
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA111AU
    Each
    THB564.09
    Texas Instruments
    Dual
    SOIC
    Surface Mount
    -
    16
    ±15V
    No
    -
    -40 °C
    +85 °C
    10000GΩ
    75dB
    -
    4.5 mA
    • RS Stock No. 813-6560P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. INA827AIDGK
    Each (Supplied on a Reel)
    THB106.476
    Texas Instruments
    Dual, Single
    VSSOP
    Surface Mount
    2.7 → 36 V
    8
    ±1.35 → ±18V
    Rail to Rail Output
    150µV
    -40 °C
    +125 °C
    -
    88dB
    600kHz
    200 μA
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