Supertex inc.

Supertex inc.

1235 Bordeaux Drive, Sunnyvale, CA 94089

Tel: 408-222-8888

www.supertex.com

HV2201

Features

Applications

General Description

The Supertex HV2201 is a low charge injection, 8-channel, high

voltage analog switch integrated circuit (IC). The device can be

used in applications requiring high voltage switching controlled by

low voltage control signals, such as medical ultrasound imaging,

piezoelectric transducer drivers, and printers. The HV2201 is an

enhanced version of the HV20220.

Input data is shifted into an 8-bit shift register that can then be

retained in an 8-bit latch. To reduce any possible clock feed-

through noise, the latch enable bar should be left high until all

bits are clocked in. Data is clocked in during the rising edge of

the clock. Using HVCMOS technology, this device combines high

voltage bilateral DMOS switches and low power CMOS logic to

provide efficient control of high voltage analog signals.

The device is suitable for various combinations of high voltage

supplies, e.g., V

40V.

Block Diagram

SW0

SW1

SW2

SW6

D

LE

CL

SW7

CLK

DIN

DOUT

Latches

Level

Shifters

Output

Switches

VNN

LE CLR

VDD GND

VPP

8-Bit

Shift

Register

D

LE

CL

D

LE

CL

D

LE

CL

D

LE

CL

Low Charge Injection, 8-Channel,

Enhanced, High Voltage Analog Switch