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  Microchip Technology Semiconductor Electronic Components Datasheet  

HV2902 Datasheet

High-Voltage Analog Switch

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HV2802/HV2902
Low Harmonic Distortion, 32-Channel SPST,
High-Voltage Analog Switch
Features
• 32-Channel SPST (Single-Pole, Single-Throw)
High-Voltage Analog Switch
• 3.3V or 5.0V CMOS Input Logic Level
• 20 MHz Data Shift Clock Frequency
• High-Voltage CMOS (HVCMOS) Technology for
High Performance
• Very Low Quiescent Power Dissipation (10 µA)
• Low Parasitic Capacitance
• DC to 50 MHz Analog Signal Frequency
• -60 dB Typical OFF-Isolation at 5.0 MHz
• CMOS Logic Circuitry for Low Power
• Excellent Noise Immunity
• Cascadable Serial Data Register with Latches
• Flexible Operating Supply Voltages
• Integrated Bleed Resistors on the Outputs
(HV2902 only)
Applications
• Medical Ultrasound Imaging
• Non-Destructive Testing (NDT) Metal Flaw
Detection
• Piezoelectric Transducer Drivers
• Inkjet Printer Heads
• Optical MEMS Modules
General Description
The HV2802 and HV2902 are low-charge injection,
32-channel, high-voltage analog switches intended for
use in applications requiring high-voltage switching
controlled by low-voltage control signals, such as
medical ultrasound imaging, driving piezoelectric
transducers and printers. The HV2902 has integrated
bleed resistors which eliminate voltage build-up on
capacitive loads such as piezoelectric transducers.
Input data are shifted into a 32-bit shift register that can
then be retained in a 32-bit latch. To reduce any
possible clock feedthrough noise, the latch enable bar
should be left high until all bits are clocked in. Data are
clocked in during the rising edge of the clock. Using the
HVCMOS technology, this device combines
high-voltage bilateral DMOS switches and low-power
CMOS logic to provide efficient control of high-voltage
analog signals.
The device is suitable for various combinations of
high-voltage supplies, e.g., VPP/VNN: +40V/-160V,
+100V/-100V and +160V/-40V.
Package Type
HV2802/HV2902
9x9x1.0 mm VFBGA*
Top View
1 2 3 4 5 6 7 8 9 10 11 12 13
A
B
C
D
E
F
G
H
J
K
L
M
N
*See Section 2.0 “Package Pin Configurations and
Functions Description”
2015 Microchip Technology Inc.
DS20005449A-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

HV2902 Datasheet

High-Voltage Analog Switch

No Preview Available !

HV2802/HV2902
Block Diagram
Latches
D
LE
CLR
CLK
DIN
DOUT
32-Bit
Shift
Register
D
LE
CLR
D
LE
CLR
D
LE
CLR
D
LE
CLR
Level
Shifters
Output
Switches
Bleed
Resistors
SW0A
SW0B
SW1A
SW1B
SW2A
SW2B
SW30A
SW30B
SW31A
SW31B
VDD GND
LE CLR
VNN
VPP
RGND
HV2902 only
DS20005449A-page 2
2015 Microchip Technology Inc.


Part Number HV2902
Description High-Voltage Analog Switch
Maker Microchip
Total Page 26 Pages
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