HV20220
HV20320
Low Charge Injection
8-Channel High Voltage Analog Switch
Ordering Information
Package Options
V
PP
– V
NN
200V
200V
28-pin
plastic DIP
HV20220P
—
28-lead plastic
chip carrier
HV20220PJ
HV20320PJ
48-lead TQFP
HV20220FG
—
µ
-BGA
HV20220GA
—
Die
HV20220X
—
Features
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❏
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HVCMOS
®
technology for high performance
Very low quiescent power dissipation – 10µA
Output On-resistance typically 22 ohms
Low parasitic capacitances
DC to 10MHz analog signal frequency
-60dB typical output off isolation at 5MHz
CMOS logic circuitry for low power
Excellent noise immunity
On-chip shift register, latch and clear logic circuitry
Flexible high voltage supplies
Surface mount package available
General Description
This device is a low charge injection 8-channel high-voltage
analog switch integrated circuit (IC) intended for use in applica-
tions requiring high voltage switching controlled by low voltage
control signals, such as ultrasound imaging and printers. Input
data is shifted into an 8-bit shift register which can then be
retained in an 8-bit latch. To reduce any possible clock feed-
through noise, Latch Enable Bar (LE) should be left high until all
bits are clocked in. Using HVCMOS technology, this switch
combines high voltage bilateral DMOS switches and low power
CMOS logic to provide efficient control of high voltage analog
signals. The HV203 has the same electrical specifications as the
HV202, but it is packaged in the 28 lead plastic chip carrier with
the pin configuration of the Supertex HV2216PJ.
This IC is suitable for various combinations of high voltage
supplies, e.g., V
PP
/V
NN
: +50V/–150V, or +100V/–100V.
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
Analog Signal Range
Peak analog signal current/channel
Storage temperature
Power dissipation
-0.5V to +15V
220V
-0.5V to V
NN
+200V
+0.5V to -200V
-0.5V to V
DD
+0.3V
V
NN
to V
PP
3.0A
-65°C to +150°C
28-pin PLCC and DIP
48 lead TQFP
1.2W
1.0W
* Absolute Maximum Ratings are those values beyond 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
1
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.
SUPERTEX [ Supertex, Inc ]
