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Supertex inc.
HV257
32-Channel High Voltage Sample and Hold Amplifier Array
Features
►► 32 independent high voltage amplifiers ►► 300V operating voltage ►► 295V output voltage ►► 2.2V/µs typical output slew rate ►► Adjustable output current source limit ►► Adjustable output current sink limit ►► Internal closed loop gain of 72V/V ►► 12MΩ feedback impedance ►► Layout ideal for die applications
Applications
►► MEMS (microelectromechanical systems) driver
►► Piezoelectric transducer driver ►► Optical crosspoint switches (using MEMS technology)
General Description
The Supertex HV257 is a 32-channel, high voltage, sample and hold amplifier array integrated circuit. It operates on a single high voltage supply, up to 300V, and two low voltage supplies, VDD and VNN.