HV209_06 Datasheet, PDF (1/9 Pages) Supertex, Inc – 12-Channel High Voltage Analog Switch

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
Block Diagram
D
LE
CL
D
LE
CL
V_DD
D
CLK
LE
CL
6 BIT
D_IN
SHIFT
REGISTER
D_OUT
D
LE
GND
CL
D
LE
CL
D
LE
CL
CL
LE
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.
V_PP V_NN
High Voltage
Level
Translator
High Voltage
Level
Translator
High Voltage
Level
Translator
High Voltage
Level
Translator
High Voltage
Level
Translator
High Voltage
Level
Translator
SW0
Y0
SW0
SW1
Y1
SW1
SW2
Y2
SW2
SW3
Y3
SW3
SW4
Y4
SW4
SW5
Y5
SW5
R_GND1 / R_GND2