Sichuan earth microelectronics ca-is1200 isolated operational amplifier for current detection

The device is a high-precision isolated operational amplifier optimized for current detection based on shunt resistance . Low offset and gain errors and associated temperature drift can maintain measurement accuracy over the full operating temperature range .

CA-IS1200 Using silica （SiO2） As a barrier , Support compliance UL1577 Certified up to 3750VRMS Electrical isolation of . This technology separates the high and low voltage regions, so as to prevent the low voltage devices from being damaged , At the same time, it provides low radiation and high magnetic field immunity . High common mode transient immunity （CMTI） signify CA-IS1200 The device transmits signals correctly between the isolation layers , Suitable for high voltage 、 Industrial motor control and drive applications of high-power switches . The detection function of internal input common mode overvoltage and high side power loss is helpful to fault diagnosis and system safety .

CA-IS1200 The device passes through eight pins DUB encapsulation , Support in the rated extended industrial temperature range （–40°C To 125°C） Normal work . The product can be widely used in industrial motor control and drive 、 Isolated switching power supply 、 Uninterruptible power supply and other fields .

Product characteristics

· Differential input voltage range ：±250 mV

· Fixed initial gain ：8

· Low input offset and temperature drift ：25°C when ±0.2 mV, ±4 μV/°C

· Low gain error and temperature drift ：25°C when ±0.3%, ±50 ppm/°C

· Low Nonlinearity and temperature drift ： Within rated range 0.03%, ±1 ppm/°C

· Both high and low sides support 3.3 V and 5 V Supply voltage

· High common mode transient immunity ：±150 kV/µs（ Typical values ）

· Wide operating temperature range ：–40°C To 125°C

· The service life under rated working voltage is longer than 40 year