CA-IS1300B25G-Q1

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Preview

Automotive Isolated Amplifier for Current Sensing

The CA-IS1300B25G-Q1 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-IS1300B25G-Q1 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 antiinterference capability from magnetic changes. The high common-mode transient immunity (CMTI) means that the CA-IS1300B25G-Q1 devices transmit correct signals through isolation barriers and are suitable for automotive motor controls and drives which require high-voltage and highpower switching. The internal input common-mode overvoltage and missing high-side supply voltage detection functions contribute to fault diagnostics and system safety.

The CA-IS1300B25G-Q1 devices are packaged in wide body, 8-pin SOIC packages and specified over the automotive temperature range of –40°C to 125°C.

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  • Features

    Differential Input Voltage Range

    ±250 mV

    Fixed Initial Gain

    8.2

    Low Input Offset and Drift

    ±0.2 mV (max) at 25°C, ±3.5 μV/°C (max)

    Low Gain Error and Drift

    ±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

    AEC-Q100 Qualified for Automotive Applications

    Grade 1, –40°C to 125°C (TA)

  • Applications

    • Automotive Motor Controls and Drives

    • Onboard Chargers

    • Traction Inverters

    • Charging Piles

  • Device Information

    PART NUMBERPACKAGEBODY SIZE (NOM)

    CA-IS1300B25G-Q1

    SOIC8-WB (G)5.85 mm × 7.50 mm
  • Simplified Functional Diagram

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