Datasheet Microchip HV257

HV257
32-Channel High-Voltage Sample-and-Hold Amplifier Array
Features General Description The 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. Thirty-two Independent High-voltage Amplifiers
300V Operating Voltage
295V Output Voltage
2.2V/Вµs Typical Output Slew Rate
Adjustable Output Current Source Limit
Adjustable Output Current Sink Limit
Internal Closed-loop Gain of 72V/V
12 MΩ Feedback Impedance
Layout Ideal for Die Applications Applications Microelectromechanical Systems (MEMS) Driver Piezoelectric Transducer Driver Optical Crosspoint Switches
(Using MEMS Technology) All 32 sample-and-hold circuits share a common
analog input, VSIG. The individual sample-and-hold
circuits are selected by a five-to-32 logic decoder. The
sampled voltage on the holding capacitor is buffered by
a low-voltage amplifier and is magnified by a
high-voltage amplifier with a closed-loop gain of 72V/V.
The internal closed-loop gain is set for an input voltage
range of 0V to 4.096V. The input voltage can be up to
5V, but the output will saturate. The maximum output …