Microchip HV2803 Manual

Microchip Ikke kategoriseret HV2803

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2017-2019 Microchip Technology Inc. DS20005721C-page 1
HV2803/HV2903/HV2904
Features
• 32-Channel, High-Voltage Analog Switch
• No High-Voltage Supplies Required
• 32-Channel, Single-Pole, Single-Throw (SPST)
Individual Switching or Bank Switching
• 3.3V CMOS Input Logic Level
• 66 MHz Data Shift Clock Frequency
• Silicon-on-Insulator (SOI) High-Voltage
Technology for High Performance
• Standby mode for Low-Power Dissipation
• Low-Parasitic Capacitance
• DC to 50 MHz Analog Small-Signal Frequency
• 200 kHz to 50 MHz Large-Signal Frequency
• -70 dB Typical Off Isolation at 5.0 MHz
• Excellent Noise Immunity
• Cascadable Serial Data Register with Latches
• Integrated Bleed Resistors on the Outputs (both
sides for HV2903, one side for HV2904)
Applications
• Medical Ultrasound Imaging
• Nondestructive Testing (NDT) Metal Flaw
Detection
• Piezoelectric Transducer Drivers
• Inkjet Printer Heads
• Optical MEMS Modules
General Description
The HV2803/HV2903/HV2904 devices are low harmonic
distortion, low charge injection, 32-channel, high-voltage
analog switches without high-voltage supplies. They are
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 HV2903 device has integrated bleed resistors at
both sides of the switches; the HV2904 device has
bleed resistors at one side only, while the HV2803
device has no bleed resistors. The bleed resistor
eliminates voltage build-up on capacitive loads, such
as piezoelectric transducers.
The HV2803/HV2903/HV2904 devices have two
modes of operation determined by the MODE pin input.
MODE input high enables an individual Switching
mode of 32-channel SPST switches and MODE input
low enables a Bank Switching mode of 16-Pole
Double-Throw (16PDT) switches to support bank
switching for probe selection.
The devices require only ±6V or ±5V low-voltage
supplies and no high-voltage supplies. However, all the
analog switches can transmit ±100V high-voltage pulses.
Package Type
1 2 3 4 5 6 7 8 9 10 11 12 13
A
B
C
D
E
F
G
H
P
J
K
L
M
14
N
HV2803/HV2903/HV2904
12 x 12 x 1.20 mm TFBGA
(Top View*)
* See Section 2.0 “Package Pin Configuration
and Function Description”.
No High-Voltage Bias, Low Harmonic Distortion,
32-Channel, High-Voltage Analog Switch
HV2803/HV2903/HV2904
DS20005721C-page 2 2017-2019 Microchip Technology Inc.
Block Diagram
Level
Shifters
VDD
VSS
Output
Switches SW0A
SW0B
SW1A
SW1B
SW2A
SW2B
SW30A
SW30B
SW31A
SW31B
Bleed
Resistors
RGND
HV2903 has bleed resistor at SWxA and SWxB
HV2904 has bleed resistor at SWxA only
GND
VLL
CLR
LE/EN
CLK
DIN/AB
DOUT
32-Bit
Shift
Register
and
Latches
(Mode = H,
Individual
Switching Logic)
Logic
Control
and
Latches
(Mode = L,
Bank Switching
Logic)
EN
A/B
MODE
STBY

Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: HV2803

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