For the application in custom specific ICs, PREMA Semiconductor GmbH has designed the new high voltage operational amplifier OP601VHV for supply voltages of up to ±60V or up to 100V single supply. The common mode input voltage covers nearly the complete supply voltage range with a very good common mode and power supply rejection ratio of more than 110dB. The output voltage can approximate the positive or negative supply voltage as close as 1V.
The temperature increase of the component remains small in spite of the high voltages due to the low quiescent current of only 180µA. Fast control circuits may be designed with this OP601VHV due to the gain bandwidth product of up to 3.5MHz and a high slew rate.
The new high voltage operational amplifier OP601VHV has been developed and produced with the enhanced semiconductor process ModuS U6 by the ASIC specialist PREMA Semiconductor. The OP601VHV can be used e.g. in a motor control circuit with current sensing using a shunt resistor at high potential. The wide common mode input range allows high impedance measurements of small differential voltages at high potentials, e.g. in Wheatstone bridges. Actors using higher voltages can be driven directly by the ASIC.
For the design of high voltage ASICs, PREMA offers linear regulators, step-down converters and several output drivers. Several externally connected components can be saved because high voltage transistors and resistors can be integrated now into the ASIC.
General information about PREMA Semiconductor GmbH, Mainz PREMA offers solutions for analog and mixed-signal ASICs
- With supply voltages from 0.9V up to 100V
- For the ultra low power range up to medium power
- Development, design, production and test, all in one hand
ASICs from PREMA can be found
- In low noise audio electronics
- In battery management of household devices
- In mobile phones and moving sensors
- In bar code readers and sensors (light and magnetic field)
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