MD1810

High Speed Quad MOSFET Driver

1

NR090105

Initial Release

Features

6ns rise and fall time with 1000pF load

2A peak output source/sink current

1.2V to 5V input CMOS compatible

5V to 12V total supply voltage

Smart Logic threshold

Low jitter design

Four matched channels

Outputs can swing below ground

Output is high impedence when disabled

Low inductance package

High-performance thermally-enhanced

Applications

Medical ultrasound imaging

Piezoelectric transducer drivers

Nondestructive evaluation

PIN diode driver

CCD Clock driver/buffer

High speed level translator

General Description

The Supertex MD1810 is a high-speed quad MOSFET driver. It

is designed to drive high voltage P-and N-channel MOSFETs for

medical ultrasound imaging applications. The MD1810 can also be

used for ultrasound metal flaw detection, nondestructive evaluation

test, piezoelectric transducer drive, clock drive, and PIN diode

drive.

The MD1810 has four inputs which individually control four outputs.

It also has an output enable (OE) pin. When OE is low, all of the

outputs will be in a high impedance state regardless of their logic

input control. When OE is high, the MD1810 sets the threshold logic

transition to (V

This ensures the transition to always be

at half the amplitude of the logic input signal. This allows the device

to have inherent propagation delay matching regardless of the logic

input amplitude.

The output stage of the MD1810 has separate power connections

enabling the output signal L and H levels to be chosen independently

from the V

levels may be 0 and 1.8 volts, the control logic may be powered

by +5 and –5 volts, and the output L and H levels may be varied

anywhere over the range of

–5 to +5 volts. The output stage is

capable of peak currents of up to ±2 amps, depending on the supply

voltages used and load capacitance present.

Typical Application Circuit

Supertex MD1810

10nF

Supertex

TC6320TG

10nF

1.0μF

+100V

1.0μF

-100V

10nF

Supertex

TC6320TG

10nF

1.0μF

+10V

1.0μF

-10V

V

SS

V

DD

V

H

V

L

OE

INA

GND

INB

INC

IND

OUTA

+12V

3.3V CMOS

Logic Inputs

OUTB

OUTC

OUTD

+12V

0.47μF

0.47μF