ADG749BKS ,CMOS Low Voltage 2.5ohm SPDT Switch In SC70 PackageGENERAL DESCRIPTION2. Very Low R (5 Ω max at 5 V, 10 Ω max at 3 V). At 1.8 VONThe ADG749 is a monol ..
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ADG749BKS
CMOS Low Voltage 2.5ohm SPDT Switch In SC70 Package
REV.0
CMOS Low Voltage
2.5 � SPDT Switch In SC70 Package
FUNCTIONAL BLOCK DIAGRAM
FEATURES
1.8 V to 5.5 V Single Supply
5 � (Max) On Resistance
0.75 � (Typ) On-Resistance Flatness
–3 dB Bandwidth >200 MHz
Rail-to-Rail Operation
6-Lead SC70 Package
Fast Switching Times
tON20 ns
tOFF6 ns
Typical Power Consumption (<0.01 �W)
TTL/CMOS-Compatible
APPLICATIONS
Battery-Powered Systems
Communication Systems
Sample Hold Systems
Audio Signal Routing
Video Switching
Mechanical Reed Relay Replacement
GENERAL DESCRIPTIONThe ADG749 is a monolithic CMOS SPDT switch. This switch
is designed on a submicron process that provides low power
dissipation yet gives high switching speed, low on resistance and
low leakage currents.
The ADG749 can operate from a single supply range of 1.8V to
5.5V, making it ideal for use in battery-powered instruments and
with the new generation of DACs and ADCs from Analog Devices.
Each switch of the ADG749 conducts equally well in both
directions when on. The ADG749 exhibits break-before-make
switching action.
Because of the advanced submicron process, –3 dB bandwidths
of greater than 200 MHz can be achieved.
The ADG749 is available in a 6-lead SC70 package.
PRODUCT HIGHLIGHTS1.8V to 5.5 V Single Supply Operation. The ADG749
offers high performance, including low on resistance and
fast switching times, and is fully specified and guaranteed
with 3V and 5 V supply rails.Very Low RON (5 Ω max at 5 V, 10 Ω max at 3 V). At 1.8V
operation, RON is typically 40Ω over the temperature range.On-Resistance Flatness (RFLAT(ON)) (0.75 Ω typ).–3 dB Bandwidth >200 MHz.Low Power Dissipation. CMOS construction ensures low
power dissipation.Fast tON/tOFF.Tiny 6-lead SC70 package.
ADG749–SPECIFICATIONS1ANALOG SWITCH
NOTES
1Temperature ranges are as follows:B Version, –40°C to +85°C.
2Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
(VDD = 5 V � 10%, GND = 0 V. All specifications –40�C to +85�C, unless otherwise
noted.)
ADG749NOTESTemperature ranges are as follows: B Version, –40°C to +85°C.Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
(VDD = 3 V � 10%, GND = 0 V. All specifications –40�C to +85�C, unless otherwise noted.)SPECIFICATIONS1
ADG749
ORDERING GUIDE*Brand = Brand on these packages is limited to three characters due to space constraints.
PIN CONFIGURATION
6-Lead SC70
Table I.Truth Table
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADG749 features proprietary ESD protection circuitry, permanent damage may
ABSOLUTE MAXIMUM RATINGS1(TA = 25°C unless otherwise noted)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +7 V
Analog, Digital Inputs2 . . . . . . . . . . –0.3 V to VDD + 0.3 V or
30 mA, Whichever Occurs First
Peak Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . .100 mA
(Pulsed at 1 ms, 10% Duty Cycle max)
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . .30 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . .–40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . .–65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . .150°C
SC70 Package, Power Dissipation . . . . . . . . . . . . . . . .315 mW
θJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . .332°C/W
θJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . .120°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . .215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220°C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5kV
NOTES
1Stresses 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.
2Overvoltages at IN, S or D will be clamped by internal diodes. Current should be
limited to the maximum ratings given.
TERMINOLOGY
TPC 1.On Resistance as a Function of VD (VS) Single
Supplies
TPC 2.On Resistance as a Function of VD (VS) for
Different Temperatures VDD = 3 V
TPC 3.On Resistance as a Function of VD (VS) for
Different Temperatures VDD = 5 V
TPC 4.Supply Current vs. Input Switching Frequency
TPC 5.Off Isolation vs. Frequency
TPC 6.Crosstalk vs. Frequency
ADG749Test Circuit 1.On Resistance
Test CircuitsTest Circuit 2.Off Leakage
Test Circuit 3.On Leakage
Test Circuit 4.Switching Times
Test Circuit 5.Break-Before-Make Time Delay, tD
VOUT
VDD
50�TPC 7.On Response vs. Frequency
