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Número de pieza | HV2761 | |
Descripción | High Voltage Analog Switch | |
Fabricantes | Supertex | |
Logotipo | ||
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HV2761
Low Charge Injection, 24-Channel,
High Voltage Analog Switch with Bleed Resistors
Features
►► 24 Channels of high voltage analog switch
►► Integrated bleed resistors on the outputs
►► 3.3 or 5.0V CMOS input logic level
►► 3:1 MUX-deMUX with 8 states
►► 20MHz data shift clock frequency
►► HVCMOS technology for high performance
►► Very low quiescent power dissipation,10µA
►► Low parasitic capacitance
►► DC to 50MHz 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
►► Flexible operating supply voltages
Applications
►► Medical ultrasound imaging
►► Piezoelectric transducer drivers
►► Inkjet printer heads
►► Optical MEMS modules
General Description
The Supertex HV2761 is a low charge injection, 24-channel,
high voltage analog switch integrated circuit (IC) intended for
use in applications requiring high voltage switching controlled by
low voltage control signals, such as medical ultrasound imaging,
piezoelectric transducer drivers, and printers. The bleed resistors
eliminate voltage built up on capacitive loads such as piezoelectric
transducers.
Input data is shifted into a 24-bit shift register that can then be
retained in a 24-bit latch. To reduce any possible clock feed through
noise, the latch enable (LE) should be left high until all bits are
clocked in. Data are 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.
The device is suitable for various combinations of high voltage
supplies, e.g., VPP/VNN: +40V/-160V, +100V/-100V, and +160V/-40V.
Block Diagram
CLK
DIN
DOUT
24-Bit
Shift
Register
Latches
Levelhttp://www.DataSheet4U.net/
Shifters
D
LE
CLR
Output
Switches
D
LE
CLR
D
LE
CLR
D
LE
CLR
D
LE
CLR
D
LE
CLR
SW0
SW1
Y0
SW2
SW3
SW4
Y1
SW5
Doc.# DSFP-HV2761
NR121312
D
LE
CLR
D
LE
CLR
D
LE
CLR
VDD GND LE CLR
VNN VPP
SW21
SW22
Y7
SW23
RGND
Supertex inc.
www.supertex.com
datasheet pdf - http://www.DataSheet4U.net/
1 page HV2761
AC Electrical Characteristics (cont.) (Over recommended operating conditions unless otherwise specified)
Sym Parameter
0OC
+25OC
+70OC
Unit Conditions
Min Max Min Typ Max Min Max
QC
Charge injection
(per switch)
- - - 820 - - -
VPP = +40V, VNN = -160V
- - - 600 - - - pC VPP = +100V, VNN = -100V
- - - 350 - - -
VPP = +160V, VNN = -40V
Test Circuits
VPP -10V ISOL
NC
SW0
Y0
SW1 NC VOUT
SW2
NC
SW0
Y0
SW1
SW2
VPP -10V
NC RLOAD
10kΩ
NC VOUT
SW0
Y0
SW1
SW2
NC
NC
NC RGND
RGND
RGND
VPP VPP
VNN VNN
VDD
GND
5.0V
Switch OFF Leakage
VPP VPP
VNN VNN
VDD
GND
5.0V
DC Offset ON/OFF
VPP VPP
VNN VNN
VDD
GND
5.0V
TON/TOFF Test Circuit
VIN = 10VP-P
@5.0MHz SW0
VOUT
50Ω
Y0
RGND
SW1
SW2
NC
NC
VSIG
IID
NC
SW0
SW1
VNN
Y0
http://www.DataSheet4U.net/
SW2
NC NC
50Ω VOUT
NC 50Ω
SW0
Y0
SW3
Y1
NC
VIN = 10VP-P
@5.0MHz
SW1
SW2
SW4
SW5
NC
NC
NC
ΔVOUT
VOUT
VPP VPP
VDD
5.0V
VNN VNN
GND
KO
=
20Log
VOUT
VIN
OFF Isolation
VPP VPP
VNN VNN
VDD
GND
5.0V
Isolation Diode Current
VPP VPP
VNN VNN
VDD
GND
5.0V
KCR
=
20Log
VOUT
VIN
Crosstalk
SW0
1000pF
Y0
SW1
NC
SW2
NC
RGND
+VSPK
VOUT
SW0
-VSPK 50Ω
Y0
RL
1kΩ
SW1
SW2
RGND
NC RL
+VSPK
1kΩ
VOUT
NC -VSPK
50Ω
SW0
Y0
SW1
NC
SW2
NC
RGND
VPP VPP
VNN VNN
VDD
GND
Q = 1000pF • ∆VOUT
Charge Injection
5.0V
VPP VPP
VNN VNN
VDD
GND
5.0V
Output Voltage Spike SW
VPP VPP
VNN VNN
VDD
GND
5.0V
Output Voltage Spike Y
Doc.# DSFP-HV2761
NR121312
5
Supertex inc.
www.supertex.com
datasheet pdf - http://www.DataSheet4U.net/
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet HV2761.PDF ] |
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