CA-IS1200U Datasheet | Chipanalog

Shanghai Chipanalog Microelectronics Co., Ltd. CA‐IS1200U, CA‐IS1200G Version 1.03 CA‐IS1200 Isolated Amplifier for Current Sensing 1 Key Features - Differential Input Voltage Range: ±250 m V - Fixed Initial Gain: 8 - Low Input Offset and Drift: ±1 m V (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 k V/µs (typ) - Wide Operating Temperature Range: - 40°C to 125°C - Safety‐Related Certifications: - VDE 0884‐17 isolation certification(CA‐IS1200G) - UL according to UL1577(CA‐IS1200G) - IEC 61010‐1:2010+A1 certifications 2 Applications - Industrial Motor Controls and Drives - Isolated Switch Mode Supplies - Uninterruptible Power Supplies 3 Description 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 (Si O2) 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 mon‐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 mon‐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 -...