Output On-resistance typically 22鈩?/div>
Integrated bleed resistors on the outputs
Very low quiescent power dissipation -10碌A(chǔ)
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鈩? 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.
Absolute Maximum Ratings*
V
DD
Logic power supply voltage
V
PP
- V
NN
Supply voltage
V
PP
Positive high voltage supply
V
NN
Negative high voltage supply
Logic input voltages
V
SIG
Analog Signal Range
Peak analog signal current/channel
Storage temperature
Power dissipation
-0.5V to +15V
+220V
-0.5V to +200V
+0.5V to -200V
-0.5V to V
DD
+0.3V
V
NN
to V
PP
3.0A
-65擄C to +150擄C
1.0W
* All voltages are referenced to ground. Absolute maximum ratings are those
values which damage to the device may occur. Functional operation under
these conditions is not implied. Continuous operation of the device at the
absolute rating level may affect device reliability.
11/12/01
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the
Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
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