CPC7220 Datasheet, PDF (1/11 Pages) Clare, Inc. – Low Charge Injection 8-Channel High Voltage Analog Switch

CPC7220
Low Charge Injection 8-Channel
High Voltage Analog Switch
Features
Description
• Processed with BCDMOS on SOI (Silicon On
The CPC7220 is a low charge injection 8-channel
Insulator)
high-voltage analog switch integrated circuit (IC) for
• DC to 10MHz analog signal frequency
use in applications requiring high voltage switching.
• Surface mount package available
Control of the high voltage switching is via low
• Low quiescent power dissipation (< 1µA typical)
voltage TTL logic level compatible inputs for direct
• Output on-resistance typically 20Ω
connectivity to the system controller.
• TTL I/O's for 3.3V interface
• Adjustable high voltage supplies
Y _Applications
R _{• Ultrasound imaging}
• Printers
• Industrial controls and measurement
A _{Block Diagram}
IN ^SHIFT
REGISTER
CLK
D_IN
SR0
IM _SR1
L _SR2
E _SR3
R SR4
P^SR5
LATCHES
LEVEL
SHIFTERS
SWITCHES
L0
SW0
D
LE
LS0
CL
L1
SW1
D
LE
LS1
CL
L2
SW2
D
LE
LS2
CL
L3
SW3
D
LE
LS3
CL
L4
SW4
D
LE
LS4
CL
L5
SW5
D
Switch manipulation is managed by an 8-bit serial to
parallel shift register whose outputs are buffered and
stored by an 8-bit transparent latch. Level shifters
buffer the latch outputs and operate the high voltage
switches.
Because the CPC7220 is capable of switching high
load voltages and has a flexible load voltage range,
e.g. V_PP/V_NN : +40V/-160V or +100V/-100V, it is well
suited for many medical and industrial applications
such as medical ultrasound imaging, printers, and
industrial measurement equipment.
Construction of the high voltage switches using
Clare's reliable BCDMOS process technology on
SOI (Silicon On Insulator) allow the switches to be
organized as solid state switches with direct gate
drive.
Ordering Information
Part Number
CPC7220W
CPC7220WTR
CPC7220K
CPC7220KTR
Description
28-Lead PLCC in Tubes (37/Tube)
28-Lead PLCC Tape & Reel (500/Reel)
48-Lead LQFP in Trays (250/Tray)
48-Lead LQFP Tape & Reel (1000/Reel)
LE
LS5
CL
L6
SW6
SR6
D
LE
LS6
CL
D_OUT
SR7
L7
SW7
D
LE
LS7
CL
CL
V_PP V_NN
LE
Pb
RoHS
2002/95/EC
e3
DS-CPC7220-R00H
www.clare.com
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