AnalogySemi Launches High Precision, ± 275V High Common Mode Differential Amplifier IND90x

　　AnalogySemi, an excellent domestic analog and digital analog hybrid chip designer dedicated to providing high-quality chips, has announced the launch of the IND90x series high-precision, high reliability, ± 275V high common mode voltage differential amplifier. This series of products has excellent DC accuracy and reliability performance, with a maximum gain error temperature drift of 3ppm/° C. The actual testing of ESD HBM can reach up to 1.75kV, which is superior to similar products. The IND90x series differential amplifier can be used as an alternative to isolation amplifiers, isolation operational amplifiers, and Hall sensors, and is widely used in various high common mode voltage applications, such as high-voltage battery pack voltage and current monitoring, battery voltage measurement for stacked battery packs, power automation, power supply current monitoring, and motor control scenarios.

　　Features

　　High common mode voltage range: ± 275VCMRR: 90dB (minimum)Power supply voltage range: ± 2.0V to ± 18VStatic current: 570 μ A (typical value)Excellent DC accuracy:Offset voltage: ± 850 μ V (maximum value)Offset voltage temperature drift: 10 μ V/° C (maximum)Gain error: 0.035% (maximum)Gain error temperature drift: 3ppm/° C (maximum)Gain nonlinearity: 0.0001% FSR (typical value)• AC performanceBandwidth: 240kHzSwing rate: 1.6V/ μ s• Input protection rangeCommon mode voltage: ± 500VDifferential voltage: ± 500V• Packaging: SOIC-8Due to the enhanced protection of input pins, the IND90x precision differential amplifier can withstand the impact of common mode or differential overload up to instantaneous 500V, and is widely used as an alternative to isolated operational amplifiers in many scenarios that do not require current isolation. When replacing isolation amplifiers, IND90x not only effectively reduces design costs, but also avoids the ripple, noise, and additional static power consumption caused by the input power supply of the isolation amplifier. In addition, the bandwidth of 240kHz and extremely low nonlinearity make the IND90x's AC performance significantly better than traditional isolation amplifiers, thereby achieving better system measurement accuracy.

　　In addition to the above advantages, the IND90x further strengthens the input protection structure, coupled with better ESD performance, giving it unique advantages for applications such as hot swapping. Therefore, the IND90x product can also be widely used in various high common mode voltage applications, such as measuring the voltage of individual batteries in stacked battery packs, power automation, power supply current monitoring, and motor control.

　　As the first high common-mode differential amplifier of analog, the launch of IND90x not only fills the gap in the layout of analog semiconductor operational amplifiers, but also continues to expand the product lineup of analog semiconductor amplifiers. At present, AnalogySemi's amplifier products have been mass-produced into seven categories, including low-power amplifiers, instrument amplifiers, zero temperature drift amplifiers, current sampling amplifiers, current power monitors, high common mode differential amplifiers, etc., with over 200 product models. In the future,AnalogySemi will continue to improve the amplifier product family to meet the diverse needs of customers with a rich product range.