Low On Resistance (<35 ⍀)
Ultralow Power Dissipation (<35 W)
Fast Switching Times
t
(160 ns max)
ON
t
(100 ns max)
OFF
Break-Before-Make Switching Action
Plug-In Replacement for DG417
APPLICATIONS
Precision Test Equipment
Precision Instrumentation
Battery Powered Systems
Sample Hold Systems
GENERAL DESCRIPTION
The ADG417 is a monolithic CMOS SPST switch. This switch
is designed on an enhanced LC
power dissipation yet gives high switching speed, low on resistance and low leakage currents.
The on resistance profile of the ADG417 is very flat over the
full analog input range ensuring excellent linearity and low
distortion. The part also exhibits high switching speed and high
signal bandwidth. CMOS construction ensures ultralow power
dissipation making the parts ideally suited for portable and
battery powered instruments.
The ADG417 switch, which is turned ON with a logic low on
the control input, 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. The ADG417 exhibits 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 input.
2
MOS process that provides low
Mini-DIP Analog Switch
ADG417
FUNCTIONAL BLOCK DIAGRAM
PRODUCT HIGHLIGHTS
1. Extended Signal Range
The ADG417 is fabricated on an enhanced LC
giving an increased signal range that extends to the supply
rails.
2. Ultralow Power Dissipation
3. Low R
4. Single Supply Operation
ON
For applications where the analog signal is unipolar, the
ADG417 can be operated from a single rail power supply.
The part is fully specified with a single +12 V power supply
and will remain functional with single supplies as low as
+5 V.
2
MOS process,
REV. A
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.
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Only one absolute
maximum rating may be applied at any one time.
2
Overvoltages at IN, S or D will be clamped by internal diodes. Current should be
limited to the maximum ratings given.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADG417 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
TERMINOLOGY
V
DD
V
SS
Most positive power supply potential.
Most negative power supply potential in dual
supplies. In single supply applications, it
may be connected to GND.
V
L
Logic power supply (+5 V).
GNDGround (0 V) reference.
SSource terminal. May be an input or an
output.
DDrain terminal. May be an input or an
output.
INLogic control input.
R
ON
I
(OFF)Source leakage current with the switch
S
Ohmic resistance between D and S.
“OFF.”
(OFF)Drain leakage current with the switch
I
D
“OFF.”
, IS (ON)Channel leakage current with the switch
I
D
“ON.”
VD (VS)Analog voltage on terminals D, S.
C
(OFF)“OFF” switch source capacitance.
S
C
(OFF)“OFF” switch drain capacitance.
D
C
, CS (ON)“ON” switch capacitance.
D
t
ON
Delay between applying the digital control
input and the output switching on.
t
OFF
Delay between applying the digital control
input and the output switching off.
V
V
I
INL
INH
INL
(I
)Input current of the digital input.
INH
Maximum input voltage for logic “0.”
Minimum input voltage for logic “1.”
Charge InjectionA measure of the glitch impulse transferred
from the digital input to the analog output
during switching.
Off IsolationA measure of unwanted signal coupling