The HV7322 is an 8-channel, true 5-Level or pseudo 7-Level, high voltage pulser with integrated dual T/R switches. It is designed for medical ultrasound or nondestructive testing (NDT) applications.

The device has seven output levels: VPP0, 1, 2, VNN0, 1, 2 and GND. The output transistors can provide up to ±2A of current at ±80V maximum.

HV7322 has the 220 MHz differential retiming clock which realigns the logic input signals to a master clock. This feature reduces delay variations caused by FPGA inaccuracies and/or long PCB traces.

The built-in gate driver regulators allow interdependent VPP0, 1, 2 and VNN0, 1, 2 HV rails and freely move the voltage from 0 to ± 80V.

The logic control voltages are designed to work with LVDS or LVCMOS logic families.

For further information, please contact Microchip sales office.

• High performance HVCMOS technology
• 8-Ch, True 5-Level/pseudo 7-level, ±80V, ±2A with RTZ
• Programmable ±0.5, ±1.0, ±1.5 & ±2A output current from VPP1/VNN1
• Integrated RF blocking, clamp diode & RX damp
• 13Ω T/R & LV switches allow receiver multiplexing
• 210Ω auto bleeding switches for return to true zero
• 220 MHz clock retiming synchronization
• 2.5, 3.3V logic control voltage
• Adjustable T/R switch delay, avoid echo saturation
• TX output frequency up to 20 MHz
• -40 dB Second Harmonic Distortion at 5MHz
• Package: 12mm x 12mm TFBGA