MICROCHIP HV2901K6-G

The HV2801 and HV2901 are 32-channel low-charge-injection high-voltage analog switch integrated circuits (ICs) intended for applications requiring high-voltage switching controlled by low-voltage control signals, such as medical ultrasound imaging, piezoelectric transducer drivers and printers. The HV2901 has integrated bleed resistors to eliminate voltage built up on capacitive loads such as piezoelectric transducers. Input data is shifted into a 32-bit Shift register that can then be retained in a 32-bit latch. To reduce any possible clock feed-through noise, the latch enable (LE) should be left high until all bits are clocked in. Data are clocked in during the rising edge of the clock. These devices combine high-voltage bilateral DMOS switches and low-power CMOS logic to provide efficient control of high-voltage analog signals. The HV2801 and HV2901 are suitable for various combinations of high-voltage supplies, e.g., VPP/VNN: +40V/-160V, +100V/–100V and +160V/-40V.

• 32-Channel High-Voltage Analog Switch
• Integrated Bleed Resistors on the Outputs for HV2901
• CMOS Logic Circuitry for Low Power
• 3.3V or 5V CMOS Input Logic Level
• 2:1 Multiplexer/Demultiplexer
• 20 MHz Data Shift Clock Frequency
• 10 μA Low-Quiescent Power Dissipation
• Low Parasitic Capacitance
• DC to 50 MHz Analog Signal Frequency
• –60 dB Typical Off-Isolation at 5 MHz
• Excellent Noise Immunity
• Cascadable Serial Data Register with Latches
• Flexible Operating Supply Voltages

• Medical Ultrasound Imaging
• Non-Destructive Testing Metal Flaw Detection
• Piezoelectric Transducer Drivers
• Inkjet Printer Heads
• Optical MEMS Modules