CA-IS1311G Datasheet | Chipanalog

Shanghai Chipanalog Microelectronics Co., Ltd. CA-IS1311G, CA-IS1311BG Version 1.06 CA-IS1311 5-k VRMS Reinforced Isolated Amplifier for Voltage Sensing 1 Key Features - Input Voltage Range: - 0.1 V to 2 V - High Input Impedance: 1 GΩ (typ) - Fixed Initial Gain: 1 - Low Input Offset and Drift: ±1.5 m V (max) at 25°C, ±15 μV/°C (max) - Low Gain Error and Drift: ±0.3% (max) at 25°C, ±40 ppm/°C (max) - 3.3-V or 5-V Operation for Both High- and Low-Side - Wide Operating Temperature Range: - 40°C to 125°C - High CMTI: ±150 k V/µs (typ, CA-IS1311BG) - Safety-Related Certifications - VDE certification according to DIN EN IEC 6074717(VDE 0884-17):2021-10 - UL certification according to UL 1577 - CQC certification according to GB4943.1-2022 - TUV certification - >40-year Life at Rated Working Voltage 2 Applications - Industrial Motor Controls and Drives - Isolated Switch Mode Supplies - Uninterruptible Power Supplies 3 Description The CA-IS1311 devices are high-precision reinforced isolated amplifiers and optimized for voltage sensing. Low offset and gain error and drift guarantee that measuring accuracy is maintained over the entire operating temperature range. The CA-IS1311 devices utilize silicon oxide (Si O2) isolation barriers and support up to 5-k VRMS 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-IS1311 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 missing or undervoltage lockout (UVLO) of highside supply voltage detection functions contribute to fault diagnostics and system...