Supertex HV20320
This device is a low charge injection, 8-channel, high-voltage analog switch integrated circuit (IC) intended for use in applications requiring high voltage switching controlled by low voltage control signals, such as ultrasound imaging and printers. These ICs are suitable for various combinations of high voltage supplies, e.g., VPP/VNN : +50V/-150V, or +100V/-100V.
| Part No. |
HV20320 |
| Datasheet |
HV20320
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| Manufacturer |
 Supertex |
| Description |
8-Channel High Voltage Analog Switch |
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FEATURES
►►HVCMOS® technology for high performance ►►Very low quiescent power dissipation (-10µA) ►►Output on-resistance typically 22Ω ►►Low parasitic capacitances ►►DC to 50MHz small signal frequency response ►►-60dB typical output off isolation at 5.0MHz ►►CMOS logic circuitry for low power ►►Excellent noise immunity ►►On-chip shift register, latch and clear logic circuitry ►►Flexible high voltage supplies APPLICATIONS
►► Medical ultrasound imaging ►► Piezoelectric transducer drivers GENERAL DESCRIPTION
Input data is shifted into an 8-bit shift register which can then be retained in an 8-bit latch. To reduce any possible clock feed-through noise, Latch Enable Bar (LE) should be left high until all bits are clocked in. Using HVCMOS® technology, this switch combines high voltage bilateral DMOS switches and low power CMOS logic to provide efficient control of high voltage analog signals. Block Diagram DIN CLK 8-Bit Shift Register DOUT Level Output Latches Shifters Switches D LE CL D LE CL D LE CL D LE CL D LE CL D LE CL D LE CL D LE CL SW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7 Doc.# DSFP-HV20320 C071613 VDD LE CL VNN VPP Supertex inc.
