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Supertex Inc |
Supertex inc.
HV20822
16-Channel,
High Voltage Analog Switch
Features
►► HVCMOS® technology for high performance
►►220V operating conditions
►► Output on-resistance typically 22Ω
►►5.0 and 12.0V CMOS logic compatibility
►►Very low quiescent current consumption (-10µA)
►► -45dB min off isolation at 7.5MHz
►► Low parasitic capacitance
►►Excellent noise immunity
►►Flexible high voltage supplies
Applications
►► Medical ultrasound imaging
►► Piezoelectric transducer drivers
General Description
The Supertex HV20822 is a 220V, 16-channel, high-
voltage analog switch integrated circuit (IC) configured as
2 sets of 8 single-pole single-throw analog switches. It
is intended for use in applications requiring high voltage
switching controlled by low voltage control signals such
as ultrasound imaging and printers.
The 2 sets of 8 analog switches are controlled by 2 input
logic controls, DIN1 and DIN2. A logic high on DIN1 will turn
On switches 0 to 7 and a logic high on DIN2 will turn On
switches 8 to 15.
Block Diagram
VDD
DIN1
Latch 1
Level
Translator 1
SW0
SW0
DIN2
LE
Latch 2
Level
Translator 2
GND
VPP
VNN
SW7
SW7
SW8
SW8
SW15
SW15
Doc.# DSFP-HV20822
C071613
Supertex inc.
www.supertex.com
Ordering Information
Part Number
Package Option
HV20820FG-G
48-Lead LQFP
HV20820FG-G M931 48-Lead LQFP
-G denotes a lead (Pb)-free / RoHS compliant package
Packing
250/Tray
1000/Reel
Pin Configuration
48
1
HV20822
Absolute Maximum Ratings
Parameter
Value
VDD Logic power supply voltage
VPP - VNN Supply voltage
VPP Positive high voltage supply
VNN Negative high voltage supply
Logic input voltages
VSIG Analog signal range
Peak analog signal current/channel
-0.5V to +15V
+225V
-0.5V to VNN +225V
+0.5V to -225V
-0.5V to VDD +0.3V
VNN to VPP
3.0A
Storage temperature
-65°C to +150°C
Power dissipation
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. All voltages are referenced to device ground.
Typical Thermal Resistance
Package
θja
48-Lead LQFP
52OC/W
48-Lead LQFP
(top view)
Product Marking
Top Marking
YYWW
HV20822FG
LLLLLLLLL
YY = Year Sealed
WW = Week Sealed
L = Lot Number
Bottom Marking C = Country of Origin*
A = Assembler ID*
CCCCCCCC
AAA
= “Green” Packaging
*May be part of top marking
Package may or may not include the following marks: Si or
48-Lead LQFP
Recommended Operating Conditions
Sym
Parameter
VPP Positive high voltage supply1
VNN Negative high voltage supply1
VDD Logic power supply voltage1
VIH High-level input voltage
VIL Low-level input voltage
VSIG Analog signal voltage peak-to-peak2
TA Operating free air-temperature
Notes:
1. Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last.
2. VSIG must be VNN ≤ VSIG ≤ VPP or floating during power up/down transition.
Value
+50V to +110V
-10V to VPP -220V
+4.75V to +12.6V
VDD -1.0V to VDD
0V to 1.0V
VNN +10V to VPP -10V
0°C to 70°C
Doc.# DSFP-HV20822
C071613
Supertex inc.
2 www.supertex.com
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