HV2731
16-Channel (2 Banks of 8-Channels),
High Voltage, Analog Switch
With Bleed Resistors
Features
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HVCMOS
®
technology for high performance
220V operating conditions
22Ω typical output on-resistance
Integrated bleed resistors on the outputs
3.3V and 5.0V CMOS logic compatibility
Very low quiescent power dissipation (-10µA)
-45dB min off isolation at 7.5MHz
Low parasitic capacitance
Excellent noise immunity
Flexible operating supply voltages
48-lead LQFP package
General Description
The Supertex HV2731 is a 220V, 16-channel, high voltage, analog
switch integrated circuit (IC) with output bleed resistors (R
INT
).
The output switches are configured as 2 sets of 8 single pole,
single throw analog switches. The IC is intended to be used in
applications requiring high voltage switching controlled by low
voltage control signals, such as ultrasound imaging.
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. The
bleed resistors help to significantly reduce voltage built up on
capacitive loads such as piezoelectric transducers connected to
the outputs.
Using HVCMOS
®
technology, this device combines high voltage
bilateral DMOS switches and low power CMOS logic to provide
efficient control of high voltage analog signals.
Applications
►
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Medical ultrasound imaging
Non-destructive evaluation
Block Diagram
VDD
D
IN
1
SW0
Latch
1
Level
Translator 1
SW0
SW7
V
DD
SW7
SW8
D
IN
2
LE
Latch
2
Level
Translator 2
SW8
GND
VPP
VNN
SW15
SW15
RGND
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
HV2731
Ordering Information
Device
HV2731
7.00x7.00mm body
1.60mm height (max)
0.50mm pitch
48-Lead LQFP
Pin Configuration
1
48
HV2731FG-G
-G indicates package is RoHS compliant (‘Green’)
48-Lead LQFP (FG)
Absolute Maximum Ratings
Parameter
V
DD
logic supply
V
PP
-V
NN
differential supply
V
PP
positive supply
V
NN
negative supply
Logic input voltage
Analog signal range
Peak analog signal current/channel
Storage temperature
Power dissipation
Value
-0.5V to +7.0V
225V
-0.5V to V
NN
+225V
+0.5V to -225V
-0.5V to V
DD
+0.3V
V
NN
to V
PP
2.5A
-65°C to 150°C
1.0W
Top Marking
HV2731F G
LLLLLLLLL
Y YW W
(top view)
Product Marking
YY = Year Sealed
WW = Week Sealed
L = Lot Number
C = Country of Origin*
A = Assembler ID*
= “Green” Packaging
*May be part of top marking
Bottom Marking
CCCCCCCC
AAA
Package may or may not include the following marks: Si or
48-Lead LQFP (FG)
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.
Recommended Operating Conditions
Sym
V
DD
V
PP
V
NN
V
IH
V
IL
V
SIG
T
A
Parameter
Logic power supply voltage
Positive driver supply
Negative high voltage supply
High level input voltage
Low-level input voltage
Analog signal voltage peak-to-peak
Operating free air temperature
Value
3.0V to 5.5V
+50V to +110V
-10V to V
PP
-220V
V
DD
-1.0V to V
DD
0V to 1.0V
V
NN
+10V to V
PP
-10V
0
O
C to 70
O
C
Notes:
Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last.
1.
2.
V
SIG
must be V
NN
≤ V
SIG
≤ V
PP
or floating during power up/down transition.
3.
Rise and fall times of power supplies V
DD
, V
PP
, and V
NN
should not be less than 1.0msec.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
2
HV2731
DC Electrical Characteristics
(Over recommended operating conditions unless otherwise specified )
Sym
Parameter
0
O
C
Min
-
Small signal switch
on-resistance
-
-
-
ΔR
ONS
R
ONL
R
INT
I
SOL
Small signal switch
on-resistance matching
Large signal switch
on-resistance
Output switch shunt resis-
tance
Switch off-leakage per switch
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
30
25
25
20
20
-
-
5.0
300
500
-
-
-
-
2.0
-
8.1
-8.1
8.1
-8.1
10
2.0
10
Min
-
-
-
-
-
-
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+25
O
C
Typ
26
22
22
18
5.0
15
35
1.0
100
100
10
-10
10
-10
-
-
-
-
-
-
-
-
-
+70
O
C
Max Min
32
27
27
22
20
-
50
10
300
500
50
-50
50
-50
2.0
50
8.8
-8.8
6.3
-6.3
10
2.0
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
40
35
Ω
30
25
20
-
-
15
300
500
-
-
-
-
2.0
-
10
-10
6.9
-6.9
10
2.0
10
%
Ω
KΩ
μA
mV
μA
μA
A
kHz
mA
Units Conditions
V
SIG
= 0V, I
SIG
= 5.0mA,
V
PP
= +50V, V
NN
= -170V
V
SIG
= 0V, I
SIG
= 200mA,
V
PP
= +50V, V
NN
= -170V
R
ONS
V
SIG
= 0V, I
SIG
= 5.0mA,
V
PP
= +110V, V
NN
= -110V
V
SIG
= 0V, I
SIG
= 200mA,
V
PP
= +110V, V
NN
= -110V
V
SIG
= 0V, I
SIG
= 5.0mA,
V
PP
= +110V, V
NN
= -110V
V
SIG
= 0V, I
SIG
= 1.0A
Output switch to R
GND
I
RINT
= 0.5mA
V
SIG
= V
PP
-10V, V
NN
= +10V
No load
All switches off
All switches on,
I
SW
= 5.0mA
V
SIG
duty cycle < 0.1%
Duty cycle = 50%
V
PP
= 50V, V
NN
= -170V, All
switches turning on and off
at 50kHz
V
PP
= 110V, V
NN
= -110V, All
switches turning on and off
at 50kHz
All logic inputs are static
D
IN
1 = D
IN
2 = 3.0MHz,
LE = high
---
V
OS(OFF)
DC offset switch off
V
OS(ON)
DC offset switch on
I
PPQ
I
NNQ
I
PPQ
I
NNQ
I
SW
f
SW
I
PP
I
NN
I
PP
I
NN
I
DDQ
I
DD
C
IN
Quiescent V
PP
supply current
Quiescent V
NN
supply current
Quiescent V
PP
supply current
Quiescent V
NN
supply current
Switch output peak current
Output switching frequency
Average V
PP
supply current
Average V
NN
supply current
Average V
PP
supply current
Average V
NN
supply current
Quiescent V
DD
supply current
Average V
DD
supply current
Logic input capacitance
mA
μA
mA
pF
AC Electrical Characteristics
(Over recommended operating conditions unless otherwise specified)
Sym
t
WLE
t
WDIN
t
SD
Parameter
Time width of LE
Time width of D
IN
Set up time before LE rises
0
O
C
Min
150
150
150
Max
-
-
-
Min
150
150
150
+25
O
C
Typ
-
-
-
Max
-
-
-
+70
O
C
Min
150
150
150
Max
-
-
-
Units Conditions
ns
ns
ns
---
---
---
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
3
HV2731
AC Electrical Characteristics
(cont.)
(Over recommended operating conditions unless otherwise specified)
Sym
t
ON
t
OFF
dv/dt
K
O
K
CR
I
ID
Parameter
Turn on time
Turn off time
Maximum V
SIG
slew rate
Off isolation
Switch crosstalk
Output switch isolation diode
current
0
O
C
Min
-
-
-
-30
-45
-45
-
5.0
25
-
-
-
-
Max
5.0
5.0
20
-
-
-
300
17
50
-
-
-
-
Min
-
-
-
-30
-45
-45
-
5.0
25
-
-
-
-
+25
O
C
Typ
-
-
-
-33
-50
-
-
12
38
250
500
770
620
Max
5.0
5.0
20
-
-
-
300
17
50
-
-
-
-
+70
O
C
Min
-
-
-
-30
-45
-45
-
5.0
25
-
-
-
-
Max
5.0
5.0
20
-
-
-
300
17
50
-
-
-
-
dB
mA
pF
pF
mV
PC
Units Conditions
μs
V/ns
dB
V
SIG
= V
PP
-10V,
R
LOAD
= 10KΩ
---
f = 5.0MHz,
load = 1.0KΩ//15pF
f = 7.5MHz, R
LOAD
= 50Ω
f = 5.0MHz, R
LOAD
= 50Ω
300ns pulse width,
2.0% duty cycle
V
SIG
= 0V, f = 1.0MHz
V
SIG
= 0V, f = 1.0MHz
R
LOAD
= 50Ω
V
PP
= +50V, V
NN
= -170V
V
PP
= +110V, V
NN
= -110V
C
SG(OFF)
Off capacitance SW to GND
C
SG(ON)
On capacitance SW to GND
+V
SPK
-V
SPK
QC
Output voltage spike
Charge injection
Logic Timing Waveforms
VDD
DIN
0V
VDD
50%
t
SD
50%
50%
t
WLE
50%
LE
0V
ON
90%
10%
T
ON
T
OFF
SW
OFF
Truth Table
DIN2
L
L
H
H
X
DIN1
L
H
L
H
X
LE
L
L
L
L
H
SW0 to SW7
OFF
ON
OFF
ON
Hold Previous State
SW8 to SW15
OFF
OFF
ON
ON
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
4
HV2731
Test Circuits
V
PP
-10V
V
PP
-10V and
V
NN
+10V
R
L
10kΩ
R
INT
R
INT
V
OUT
V
OUT
R
INT
V
OUT
R
INT
R
INT
R
INT
R
GND
V
PP
V
NN
VPP
VNN
VDD
GND
5.0V
V
PP
V
NN
R
GND
VPP
VNN
VDD
GND
5.0V
V
PP
V
NN
R
GND
VPP
VNN
VDD
GND
5.0V
I
SOL
=
V
OUT
R
INT
DC Offset ON/OFF
T
ON
/T
OFF
Test Circuit
Switch OFF Leakage
V
OUT
V
OUT
V
IN
= 10V
P-P
@5.0MHz
R
INT
R
INT
R
LOAD
V
IN
= 10V
P-P
@5.0MHz
NC
50Ω
R
INT
R
INT
50Ω
R
GND
V
PP
V
NN
VPP
VNN
VDD
GND
5.0V
V
PP
V
NN
VPP
VNN
VDD
GND
5.0V
K
O
= 20Log
V
OUT
V
IN
K
CR
= 20Log
V
OUT
V
IN
OFF Isolation
Crosstalk
+V
SPK
∆V
OUT
V
SIG
I
ID
V
NN
R
GND
R
INT
R
INT
1.0kΩ
R
INT
R
INT
V
OUT
V
SIG
-V
SPK
50Ω
R
INT
R
INT
V
OUT
1000pF
R
GND
R
GND
V
PP
V
NN
VPP
VNN
VDD
GND
5.0V
V
PP
V
NN
VPP
VNN
VDD
GND
5.0V
V
PP
V
NN
VPP
VNN
VDD
GND
5.0V
Q = 1000pF • ∆V
OUT
Isolation Diode Current
Output Voltage Spike
Charge Injection
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
5
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