HV209
12-Channel High Voltage Analog Switch
Features
❏
❏
❏
❏
❏
❏
❏
❏
❏
❏
HVCMOS technology for high performance
Operating voltage of up to 200V
Output On-resistance typically 22Ω
Integrated bleed resistors on the outputs
Very low quiescent power dissipation -10µA
Low parasitic capacitances
-58dB typical output off isolation at 5MHz
5.0V to 12V CMOS logic circuitry
Excellent noise immunity
Flexible high voltage supplies
General Description
The Supertex HV209 is a 200V low charge injection 12-
channel high voltage analog switch configured as 6 SPDT
analog switch intended for medical ultrasound applications.
Bleed resistors are integrated on the output switches to
eliminate charge built up on the piezo electric transducers.
The bleed resistors are at a nominal value of 35K?
?
Using
HVCMOS technology, this device combines high voltage
bilateral DMOS switches and low power CMOS logic to pro-
vide efficient control of high voltage analog signals. The
outputs are configured as single pole double throw analog
switches. Data is shifted into a 6-bit shift register using an
external clock. The LE latches the shift register data into the
individual switch latches. A logic high connects a switch
common Y
X
to SW
X
. A logic low connects Y
X
to SW
X
. A logic
hi in CL resets all switches to SW
X
simultaneously.
Block Diagram
V
PP
D
LE
CL
V
NN
SW0
High Voltage
Level
Translator
Y0
SW0
SW1
D
LE
CL
High Voltage
Level
Translator
Y1
SW1
V
DD
CLK
D
IN
D
OUT
GND
6 BIT
SHIFT
REGISTER
SW2
D
LE
CL
High Voltage
Level
Translator
Y2
SW2
SW3
D
LE
CL
High Voltage
Level
Translator
Y3
SW3
SW4
D
LE
CL
High Voltage
Level
Translator
Y4
SW4
SW5
D
LE
CL
CL
LE
High Voltage
Level
Translator
Y5
SW5
R
GND1
/ R
GND2
SUPERTEX [ Supertex, Inc ]
