Toshiba has introduced high-precision optocoupler isolation amplifiers for industrial applications

Toshiba has introduced high-precision optocoupler isolation amplifiers for industrial applications

tenco 2019-05-09

Toshiba semiconductor and storage products today announced the launch of a high-precision optocoupler isolation amplifier equipped with a delta-sigma AD converter that detects small current and voltage fluctuations for industrial applications.The new product will provide both analog and digital output types, as well as a 2.3mm (Max) low height SO8L thin pack or traditional DIP8 pack.Shipment of these new products starts today.


Monitoring the phase current and BUS voltage fluctuations of the motor to provide accurate feedback to the microcontroller is critical to achieving the high-precision operation required for recent industrial equipment, including inverters and servo amplifiers.In order to meet these requirements, the new optocoupler isolation amplifier is equipped with a high-precision delta-sigma AD converter at its input end, achieving the highest level of linearity in the industry. The nonlinear error of the analog output product is 0.02% (NL200, typical value), and the integral nonlinear error of the digital output product is 3LSB (INL, typical value).The isolation amplifier also implements a CMTI (common mode transient suppression) value of 20kV/ s (typical) to support the steady operation of motor control applications, which usually produce strong noise.In addition, the 5000V (minimum) isolation voltage makes them suitable for a variety of industrial equipment applications.

application

· industrial equipment, such as inverters, servo amplifiers, robots, CNC machine tools, power supplies, etc

· wind turbine, photovoltaic inverter and battery management

· uninterruptible power system, server power supply, battery management, office and residential air-conditioning

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