1
General Description
The Supertex HV208 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 applica-
tions 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,
D
IN
1 and D
IN
2. A logic high on D
IN
1 will turn ON switches 0 to 7
and a logic high on D
IN
2 will turn ON switches 8 to 15.
HV20822
16 Channel High Voltage Analog Switch
Ordering Information
Features
HVCMOS
technology for high performance
220V operating conditions
Output On-resistance typically 22
5.0V and 12.0V CMOS logic compatibility
Very low quiescent power dissipation-10
A
-45dB min off isolation at 7.5MHz
Low parasitic capacitance
Excellent noise immunity
Flexible high voltage supplies
Package Options
V
PP
-V
NN
48-lead TQFP
Die
220V
HV20822FG
HV20822X
Absolute Maximum Ratings*
V
DD
Logic power supply voltage
-0.5V to +15V
V
PP
- V
NN
Supply voltage
+225V
V
PP
Positive high voltage supply
-0.5V to V
NN
+225V
V
NN
Negative high voltage supply
+0.5V to -225V
Logic input voltages
-0.5V to V
DD
+0.3V
V
SIG
Analog Signal Range
V
NN
to V
PP
Peak analog signal current/channel
3.0A
Storage temperature
-65
C to +150
C
Power dissipation
48-lead TQFP
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.
06/26/01
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.
2
HV20822
Small Signal Switch (ON)
R
ONS
30
26
32
40
V
SIG
= 0V, I
SIG
= 5mA,
Resistance
V
PP
= 50V, V
NN
= -170V
25
22
27
35
V
SIG
= 0V, I
SIG
= 200mA,
ohms
V
PP
= 50V, V
NN
= -170V
15
22
27
30
V
SIG
= 0V, I
SIG
= 5mA,
V
PP
= 110V, V
NN
= -110V
20
18
22
25
V
SIG
= 0V, I
SIG
= 200mA,
V
PP
= 110V, V
NN
= -110V
Small Signal Switch (ON)
R
ONS
20
5.0
20
20
%
V
SIG
= 0V, I
SIG
= 5mA,
Resistance Matching
V
PP
= 110V, V
NN
= -110V
Large Signal Switch (ON)
R
ONL
15
ohms
V
SIG
= 0V, I
SIG
= 1.0A
Resistance
Switch Off Leakage
I
SOL
5.0
1.0
10
15
A
V
SIG
= V
PP
-10V and V
NN
+10V
Per Switch
DC Offset Switch OFF
300
100
300
300
mV
R
L
= 100Kohms
DC Offset Switch ON
500
100
500
500
R
L
= 100Kohms
Pos. HV Supply Current
I
PPQ
10
50
All SWs OFF
Neg. HV Supply Current
I
NNQ
-10
-50
A
All SWs OFF
Pos. HV Supply Current
I
PPQ
10
50
All SWs ON, I
SW
= 5 mA
Neg. HV Supply Current
I
NNQ
-10
-50
All SWs ON, I
SW
= 5 mA
Switch Output Peak Current
3.0
3.0
2.0
2.0
A
V
SIG
duty cycle
0.1%
Output Switch Frequency
f
SW
50
KHz
Duty Cycle = 50%
I
PP
Supply Current
I
PP
8.1
8.8
10
V
PP
= 50V, V
NN
= -170V, ALL SWs
I
NN
Supply Current
I
NN
-8.1
-8.8
-10
turning ON and OFF at 50KHz
I
PP
Supply Current
I
PP
5
6.3
6.9
mA
V
PP
= 110V, V
NN
= -110V, All SWs
I
NN
Supply Current
I
NN
-5
-6.3
-6.9
turning ON and OFF at 50kHz
Logic Supply Quiescent Current
I
DDQ
10
10
10
A
All logic states are at DC
Logic Supply Average Current
I
DD
2.0
2.0
2.0
mA
D
IN
1 = D
IN
2 = 3MHz, LE = high
0
C
+25
C
+70
C
Characteristics
Sym
Units
Test Conditions
min
max
min
typ
max
min
max
Electrical Characteristics
DC Characteristics
(over recommended operating conditions unless otherwise noted)
3
HV20822
Truth Table
D
IN
2
D
IN
1
LE
SW0 to SW7
SW8 to SW15
L
L
L
OFF
OFF
L
H
L
ON
OFF
H
L
L
OFF
ON
H
H
L
ON
ON
X
X
H
HOLD PREVIOUS STATE
Time to Turn OFF V
SIG
*
t
SIG(OFF)
0
0
0
ns
Time Width of LE
t
WLE
150
150
150
ns
Time Width of D
IN
t
WDIN
150
150
150
ns
Set Up Time Before LE Rises
t
SD
150
150
150
ns
Turn On Time
t
ON
2.0
2.0
2.0
s
V
SIG
=V
PP
- 10V, R
LOAD
=10K
Turn Off Time
t
OFF
2.0
2.0
2.0
s
V
SIG
=V
PP
- 10V, R
LOAD
=10K
Off Isolation
KO
-30
-30
-33
-30
dB
f = 5.0MHz, 1K
/15pF Load
-45
-45
-50
-45
dB
f = 7.5MHz, R
LOAD
= 50
Switch Crosstalk
K
CR
-45
-45
-45
dB
f = 5.0MHz, R
LOAD
= 50
Off Capacitance Switch to GND C
GS(OFF)
5.0
17
5.0
12
17
5.0
17
pF
V
SIG
= 0V, 1MHz
On Capacitance Switch to GND C
GS(ON)
25
50
25
38
50
25
50
pF
V
SIG
= 0V, 1MHz
Output Voltage Spike
+V
SPK
4.0
V
-V
SPK
-4.0
Operating Conditions
Electrical Characteristics
AC Characteristics
(over recommended operating conditions unless otherwise noted)
0
C
+25
C
+70
C
Characteristics
Sym
Units
Test Conditions
min
max
min
typ
max
min
max
*Time required for analog signal to turn off before output switch turns off.
Symbol
Parameter
Value
V
PP
Positive high voltage supply
1
+50V to +110V
V
NN
Negative high voltage supply
1
-10V to V
PP
-220V
V
DD
Logic power supply voltage
1
4.75V to +12.6V
V
IH
High-level input voltage
V
DD
-1.0V to V
DD
V
IL
Low-level input voltage
0V to 1.0V
V
SIG
Analog signal voltage peak-to-peak
2
V
NN
+10V to V
PP
-10V
T
A
Operating free air-temperature
0
C to 70
C
Notes:
1 Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last.
2 V
SIG
must be V
NN
V
SIG
V
PP
or floating during power up/down transition.
6
HV20822
Pin Configuration
HV208 48-Pin TQFP
Pin
Function
1
V
NN
2
N/C
3
V
PP
4
N/C
5
D
IN
1
6
LE
7
D
IN
2
8
N/C
9
N/C
10
V
DD
11
GND
12
N/C
13
N/C
14
SW15
15
SW15
16
SW14
17
SW14
18
SW13
19
SW13
20
SW12
21
SW12
22
SW11
23
SW11
24
N/C
Package Outline
Pin
Function
25
SW10
26
SW10
27
SW9
28
SW9
29
SW8
30
SW8
31
SW7
32
SW7
33
SW6
34
SW6
35
SW5
36
SW5
37
SW4
38
N/C
39
SW4
40
N/C
41
SW3
42
SW3
43
SW2
44
SW2
45
SW1
46
SW1
47
SW0
48
SW0
Pin #1
Pin 1
top view
48-pin TQFP
Pin 12
HV208
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 FAX: (408) 222-4895
www.supertex.com
06/26/01
2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
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