HV2321 데이터 시트보기 (PDF) - Supertex Inc
부품명
상세내역
제조사
HV2321 Datasheet PDF : 8 Pages
| |||
HV2321
Low Charge Injection, 8-Channel, Unipolar,
Negative High Voltage, Analog Switch With Bleed Resistors
Features
► Low on-resistance, 14Ω max.
► Integrated bleed resistors on the outputs
► 3.3 or 5.0V CMOS input logic level
► 20MHz data shift clock frequency
► Very low quiescent power dissipation -10µA
► Low parasitic capacitance
► DC to 10MHz analog signal frequency
► -60dB typical off-isolation at 5.0MHz
► CMOS logic circuitry for low power
► Excellent noise immunity
► Cascadable serial data register with latches
Applications
► NDT metal flaw detection
► Medical ultrasound imaging
► Piezoelectric transducer drivers
► Inkjet printer heads
► Optical MEMS modules
General Description
The Supertex HV2321 is a low charge injection, 8-channel,
unipolar, negative high voltage, analog switch integrated circuit
(IC) with bleed resistors. The device can be used in applications
requiring high voltage switching controlled by low voltage signals,
such as NDT metal flaw detection, medical ultrasound imaging,
piezoelectric transducer drivers, and printers. The bleed resistors
eliminate voltage built up on capacitive loads such as piezoelectric
transducers.
Data is input into an 8-bit shift register and then retained in an 8-bit
latch. To reduce any possible clock feed-through noise, the latch
enable bar should be left high until all bits are clocked in. Data is
clocked in during the rising edge of the clock.
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.
Block Diagram
LATCHES
D
LE
CLR
LEVEL
SHIFTERS
OUTPUT
SWITCHES
SW0
D
CLK
LE
CLR
SW1
8-BIT
DIN
SHIFT
REGISTER
D
LE
CLR
SW2
DOUT
D
LE
CLR
SW6
D
LE
SW7
CL
VDD GND LE CLR
VNN VPP
RGND
Share Link: 