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PDF ( 数据手册 , 数据表 ) HV20220X

零件编号 HV20220X
描述 High Voltage Analog Switch
制造商 Supertex Inc
LOGO Supertex  Inc LOGO 


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HV20220X 数据手册, 描述, 功能
Supertex inc.
HV20220
Low Charge Injection,
8-Channel, High Voltage Analog Switches
Features
►HVCMOS® technology for high performance
►Very low quiescent power dissipation (-10µA)
Output on-resistance typically 22Ω
►Low parasitic capacitances
►DC to 50MHz small signal frequency response
►-60dB typical output off isolation at 5.0MHz
►CMOS logic circuitry for low power
►Excellent noise immunity
►On-chip shift register, latch and clear logic circuitry
►Flexible high voltage supplies
Applications
Medical ultrasound imaging
Piezoelectric transducer drivers
General Description
This device is a low charge injection, 8-channel, high-voltage
analog switch integrated circuit (IC) intended for use in appli-
cations requiring high voltage switching controlled by low volt-
age 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 volt-
age analog signals.
These ICs are suitable for various combinations of high volt-
age supplies, e.g., VPP/VNN : +50V/-150V, or +100V/-100V.
Block Diagram
DIN
CLK
8-Bit
Shift
Register
DOUT
Level Output
Latches Shifters Switches
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
D
LE
CL
VDD
LE CL
VNN VPP
Doc.# DSFP-HV20220
C071613
SW0
SW1
SW2
SW3
SW4
SW5
SW6
SW7
Supertex inc.
www.supertex.com







HV20220X pdf, 数据表
Pin Description - 48-Lead LQFP
Pin Name
1 SW5
2 N/C
3 SW4
4 N/C
5 SW4
6 N/C
7 N/C
8 SW3
9 N/C
10 SW3
11 N/C
12 SW2
13 N/C
14 SW2
15 N/C
16 SW1
17 N/C
18 SW1
19 N/C
20 SW0
21 N/C
22 SW0
23 N/C
24 VPP
Pin Description - 28-Lead PLCC
Pin Name
1 SW3
2 SW3
3 SW2
4 SW2
5 SW1
6 SW1
7 SW0
8 SW0
9 N/C
10 VPP
11 N/C
12 VNN
13 GND
14 VDD
Doc.# DSFP-HV20220
C071613
8
Pin
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Pin
15
16
17
18
19
20
21
22
23
24
25
26
27
28
HV20220
Name
VNN
N/C
N/C
GND
VDD
N/C
N/C
N/C
DIN
CLK
LE
CLR
DOUT
N/C
SW7
N/C
SW7
N/C
SW6
N/C
SW6
N/C
SW5
N/C
Name
N/C
DIN
CLK
LE
CL
DOUT
SW7
SW7
SW6
SW6
SW5
SW5
SW4
SW4
Supertex inc.
www.supertex.com














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