HV230 Datasheet | Supertex

Features XXHVCMOS® technology for high performance XXVery low quiescent power dissipation (-10µA max.) XXOutput on-resistance typically (22Ω typ.) XXIntegrated bleed resistors on the outputs XXLow parasitic capacitances - - DC to 50MHz small signal frequency response XX-60d B typical output OFF isolation at 5.0MHz XXCMOS logic circuitry for low power XXExcellent noise immunity XXON-chip shift register, latch and clear logic circuitry XXFlexible high voltage supplies Applications XX Medical ultrasound imaging XX Piezoelectric transducer drivers General Description The Supertex HV230 is a low charge injection 8-channel, high-voltage, analog switch integrated circuit (IC) with bleed resistors. This device can be used in applications requiring high voltage switching controlled by low voltage control signals, such as ultrasound imaging and printers. The bleed resistors eliminate voltage built up on capacitive loads such as piezoelectric transducers. 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 (LE) should be left high until all bits are clocked in. Using HVCMOS® technology, this switch bines high voltage bilateral DMOS switches and low power CMOS logic to provide efficient control of high voltage analog signals. This IC is suitable for various binations of high voltage supplies, e.g., VPP/VNN: +50V/-150V, or +100V/-100V. Block Diagram 8-Bit Shift Register DOUT Latches D LE CL Level Shifters Output Switches 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-HV230 C071613 LE CL VNN VPP RGND Supertex inc. .supertex. Ordering Information Part Number Package Option HV230G1-G 26-Lead...