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CA-IS1200U

Ordering Code CA-IS1200U Category

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Isolated Amplifier

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CA-IS1200U

Order Code CA-IS1200U Category

Description

CA-IS1200U

Full-differential Isolated Amplifier

The CA-IS1200 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-IS1200 devices utilize silicon oxide (SiO2) isolation barriers and support up to 3750-VRMS (CA-IS1200U) or 5000- VRMS (CA-IS1200G) 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-IS1200 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 high-side supply voltage detection functions contribute to fault diagnostics and system safety.

The CA-IS1200 devices are packaged in 8-pin DUB or wide-body SOIC packages and specified over the extended industrial temperature range of –40°C to 125°C.

Features

  • Differential Input Voltage Range – ±250 mV
  • Fixed Initial Gain – 8
  • Low Input Offset and Drift – ±1 mV (max) at 25°C, ±4 μV/°C (max)
  • Low Gain Error and Drift – ±0.5% (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 (CA-IS1200G) Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS (CA-IS1200G) Isolation for 1 Minute per UL 1577
    • TUV Certification Approvals

Applications

  • Industrial Motor Controls and Drives
  • Isolated Switch Mode Supplies
  • Uninterruptible Power Supplies