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CA-IS1300B25G

CA-IS1300B25G

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Full-differential Isolated Amplifier

The CA-IS1300x devices are high-precision isolated amplifiers and optimized for shunt-resistor-based current sensing. Low offset and gain error and drift guarantee that measuring accuracy is maintained over the entire operating temperature range.

The CA-IS1300x devices utilize silicon oxide (SiO2) isolation barriers and support up to 5-kVRMS galvanic isolation per UL 1577. This technology separates high- and low-voltage domain to protect lower-voltage parts from damage and provides low emissions as well as strong anti-interference capability from magnetic changes. The high common-mode transient immunity (CMTI) means that the CA-IS1300x devices transmit correct signals through isolation barriers and are suitable for industrial motor controls and drives which require high-voltage and high-power switching. The internal input common-mode overvoltage and missing highside supply voltage detection functions contribute to fault diagnostics and system safety.

The CA-IS1300x series provide two input voltage range options and the smaller rank (±50 mV) allows significant reduction of the power dissipation through the shunt resistor.

The CA-IS1300x devices are packaged in wide body, 8-pin SOIC packages and specified over the extended industrial temperature range of –40°C to 125°C.

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  • Features

    Differential Input Voltage Range

    ±50 mV or ±250 mV

    Fixed Initial Gain

    8.2 or 41

    Low Input Offset and Drift

    CA-IS1300G05: ±0.1 mV (max) at 25°C, ±1 μV/°C(max)
    CA-IS1300G25: ±1 mV (max) at 25°C, ±4 μV/°C(max)
    CA-IS1300B25: ±0.2 mV (max) at 25°C, ±4 μV/°C(max)

    Low Gain Error and Drift

    CA-IS1300G05: ±0.3% (max) at 25°C, ±50 ppm/°C(max)
    CA-IS1300G25: ±0.5% (max) at 25°C, ±50 ppm/°C(max)
    CA-IS1300B25: ±0.3% (max) at 25°C, ±50 ppm/°C(max)

    Low Nonlinearity and Drift

    0.01% (typ) for Full Scale, ±1 ppm/°C (typ)

    3.3-V or 5-V Operation for Both High- and Low-Side

    High CMTI

    ±150 kV/µs (typ)

    Wide Operating Temperature Range

    –40°C to 125°C

    Safety-Related Certifications

    7070-VPK Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    5-kVRMS Isolation for 1 Minute per UL 1577
    TUV Certification Approvals

    >40-year Life at Rated Working Voltage

  • Applications

    • Industrial Motor Controls and Drives

    • Isolated Switch Mode Supplies

    • Uninterruptible Power Supplies

  • Device Information

    PART NUMBER PACKAGE BODY SIZE (NOM)
    CA-IS1300x SOIC8-WB (G) 5.85 mm × 7.50 mm

  • Simplified Functional Diagram

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