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PDF ADG663BRU Data sheet ( Hoja de datos )
| Número de pieza | ADG663BRU | |
| Descripción | LC2MOS Precision 5 V Quad SPST Switches | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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LC2MOS
Precision 5 V Quad SPST Switches
ADG661/ADG662/ADG663
FEATURES
+5 V, ؎5 V Power Supplies
Ultralow Power Dissipation (<0.5 W)
Low Leakage (<100 pA)
Low On Resistance (<50 ⍀)
Fast Switching Times
Low Charge Injection
TTL/CMOS Compatible
TSSOP Package
APPLICATIONS
Battery Powered Instruments
Single Supply Systems
Remote Powered Equipment
+5 V Supply Systems
Computer Peripherals such as Disk Drives
Precision Instrumentation
Audio and Video Switching
Automatic Test Equipment
Precision Data Acquisition
Sample Hold Systems
Communication Systems
FUNCTIONAL BLOCK DIAGRAM
S1
IN1 IN1
D1
S2
IN2 IN2
ADG661
D2
S3
IN3 IN3
D3
S4
IN4 IN4
D4
ADG662
S1
IN1
D1
S2
IN2
ADG663
D2
S3
IN3
D3
S4
IN4
D4
SWITCHES SHOWN FOR A LOGIC "1" INPUT
S1
D1
S2
D2
S3
D3
S4
D4
GENERAL DESCRIPTION
The ADG661, ADG662 and ADG663 are monolithic CMOS
devices comprising four independently selectable switches.
These switches feature low, well-controlled on resistance and
wide analog signal range, making them ideal for precision analog
signal switching.
They are fabricated using Analog Devices' advanced linear
compatible CMOS (LC2MOS) process, which offers benefits of
low leakage currents, ultralow power dissipation and low capaci-
tance for fast switching speeds with minimum charge injection.
The on resistance profile is very flat over the full analog input
range ensuring excellent linearity and low distortion when
switching audio signals. Fast switching speed coupled with high
signal bandwidth also make the parts suitable for video signal
switching. CMOS construction ensures ultralow power dissipa-
tion making the parts ideally suited for portable and battery
powered instruments.
The ADG661, ADG662 and ADG663 contain four indepen-
dent SPST switches. The ADG661 and ADG662 differ only in
that the digital control logic is inverted. The ADG661 switches
are turned on with a logic low on the appropriate control input,
while a logic high is required for the ADG662. The ADG663
has two switches with digital control logic similar to that of the
ADG661, while the logic is inverted on the other two switches.
Each switch conducts equally well in both directions when ON
and has an input signal range that extends to the supplies. In the
OFF condition, signal levels up to the supplies are blocked. All
switches exhibit break-before-make switching action for use in
multiplexer applications. Inherent in the design is low charge
injection for minimum transients when switching the digital
inputs.
PRODUCT HIGHLIGHTS
1. +5 V Single Supply Operation
The ADG661, ADG662 and ADG663 offer high perfor-
mance, including low on resistance and wide signal range,
fully specified and guaranteed with ± 5 V and +5 V supply
rails.
2. Ultralow Power Dissipation
CMOS construction ensures ultralow power dissipation.
3. Low RON
4. Break-Before-Make Switching
This prevents channel shorting when the switches are config-
ured as a multiplexer.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1998
1 page  
PIN CONFIGURATION
IN1 1
16 IN2
D1 2
15 D2
S1 3 ADG661 14 S2
VSS 4 ADG662 13 VDD
GND 5 ADG663 12 NC
TOP VIEW
S4 6 (Not to Scale) 11 S3
D4 7
10 D3
IN4 8
9 IN3
NC = NO CONNECT
Table I. Truth Table (ADG661/ADG662)
ADG661 In
0
1
ADG662 In
1
0
Switch Condition
ON
OFF
Table II. Truth Table (ADG663)
Logic
0
1
Switch 1, 4
OFF
ON
Switch 2, 3
ON
OFF
ADG661/ADG662/ADG663
VDD
VSS
GND
S
D
IN
RON
IS (OFF)
ID (OFF)
ID, IS (ON)
VD (VS)
CS (OFF)
CD (OFF)
CD, CS (ON)
tON
tOFF
tD
Crosstalk
Off Isolation
Charge
Injection
TERMINOLOGY
Most positive power supply potential.
Most negative power supply potential in
dual supplies. In single supply applications,
it may be connected to GND.
Ground (0 V) Reference.
Source Terminal. May be an input or output.
Drain Terminal. May be an input or output.
Logic Control Input.
Ohmic resistance between D and S.
Source leakage current with the switch “OFF.”
Drain leakage current with the switch “OFF.”
Channel leakage current with the switch “ON.”
Analog voltage on terminals D, S.
“OFF” Switch Source Capacitance.
“OFF” Switch Drain Capacitance.
“ON” Switch Capacitance.
Delay between applying the digital control
input and the output switching on.
Delay between applying the digital control
input and the output switching off.
“OFF” time or “ON” time measured between
the 90% points of both switches, when
switching from one address state to another.
A measure of unwanted signal which is
coupled through from one channel to another
as a result of parasitic capacitance.
A measure of unwanted signal coupling
through an “OFF” switch.
A measure of the glitch impulse transferred
from the digital input to analog output during
switching.
REV. 0
–5–
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| PDF Descargar | [ Datasheet ADG663BRU.PDF ] | |
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