ADG781 ,CMOS, Low Voltage 2.5 Ohm Quad SPST Switches in Chip Scale PackageGENERAL DESCRIPTION PRODUCT HIGHLIGHTSThe ADG781, ADG782, and ADG783 are monolithic CMOS 1. 20-Lead ..
ADG781BCP ,2.5 ohm Quad SPST Switches in Chip Scale PackageGENERAL DESCRIPTION PRODUCT HIGHLIGHTSThe ADG781, ADG782, and ADG783 are monolithic CMOS 1. 20-Lead ..
ADG788BCP ,2.5ohm, 1.8V to 5.5V, +-2.5 V Triple/Quad SPDT Switches in Chip Scale Packagesapplications. All channels exhibit break-before-make switch-ing action preventing momentary shortin ..
ADG788BCPZ-REEL7 , 2.5ohm, 1.8V to 5.5V, 2.5V, -2.5V Triple/Quad SPDT Switches in Chip Scale Packages
ADG790BCBZ-REEL , Low Voltage, CMOS Multimedia Switch
ADG790BCBZ-REEL , Low Voltage, CMOS Multimedia Switch
AG402-89G , AG402-89 InGaP HBT Gain Block
AG402-89G , AG402-89 InGaP HBT Gain Block
AG403-86 , InGaP HBT Gain Block
AG503-86 , InGaP HBT Gain Block
AG503-89 , InGaP HBT Gain Block Product Information
AG503-89G , InGaP HBT Gain Block Product Information
ADG781
CMOS, Low Voltage 2.5 Ohm Quad SPST Switches in Chip Scale Package
REV.A
2.5 � Quad SPST Switches
in Chip Scale Package
FUNCTIONAL BLOCK DIAGRAMS
FEATURES
1.8 V to 5.5 V Single Supply
Low On Resistance (2.5 � Typ)
Low On-Resistance Flatness (0.5 �)
–3 dB Bandwidth > 200 MHz
Rail-to-Rail Operation
20-Lead 4 mm � 4 mm Chip Scale Package
Fast Switching Times
tON = 16 ns
tOFF = 10 ns
Typical Power Consumption (< 0.01 �W)
TTL/CMOS Compatible
For Functionally Equivalent Devices in 16-Lead TSSOP
and SOIC Packages, See ADG711/ADG712/ADG713
APPLICATIONS
Battery Powered Systems
Communication Systems
Sample Hold Systems
Audio Signal Routing
Video Switching
Mechanical Reed Relay Replacement
GENERAL DESCRIPTIONThe ADG781, ADG782, and ADG783 are monolithic CMOS
devices containing four independently selectable switches. These
switches are designed on an advanced submicron process that
provides low power dissipation and high switching speed, low on
resistance, low leakage currents and high bandwidth.
They are designed to operate from a single 1.8 V to 5.5 V sup-
ply, making them ideal for use in battery powered instruments
and with the new generation of DACs and ADCs from Analog
Devices. Fast switching times and high bandwidth make the
part suitable for video signal switching.
The ADG781, ADG782, and ADG783 contain four independent
single-pole/single throw (SPST) switches. The ADG781 and
ADG782 differ only in that the digital control logic is inverted.
The ADG781 switches are turned on with a logic low on the
appropriate control input, while a logic high is required to turn
on the switches of the ADG782. The ADG783 contains two
switches whose digital control logic is similar to the ADG781,
while the logic is inverted on the other two switches.
Each switch conducts equally well in both directions when ON.
The ADG783 exhibits break-before-make switching action.
The ADG781/ADG782/ADG783 are available in 20-lead chip
scale packages.
PRODUCT HIGHLIGHTS20-Lead 4 mm � 4 mm Chip Scale Package (CSP).1.8 V to 5.5 V Single Supply Operation. The ADG781,
ADG782, and ADG783 offer high performance and are
fully specified and guaranteed with 3 V and 5 V supply
rails.Very Low RON (4.5 Ω max at 5 V, 8 Ω max at 3 V). At supply
voltage of 1.8 V, RON is typically 35 Ω over the temperature
range.Low On-Resistance Flatness.–3 dB Bandwidth >200 MHz.Low Power Dissipation. CMOS construction ensures low
power dissipation.Fast tON/tOFF.Break-Before-Make Switching. This prevents channel shorting
when the switches are configured as a multiplexer (ADG783
only).
ADG781/ADG782/ADG783–SPECIFICATIONS
(VDD = 5 V � 10%, GND = 0 V. All specifications
–40�C to +85�C unless otherwise noted.) ANALOG SWITCH
Analog Signal Range
LEAKAGE CURRENTS
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.
ADG781/ADG782/ADG783NOTESTemperature 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.
SPECIFICATIONS1
(VDD = 3 V �10%, GND = 0 V. All specifications –40�C to +85�C unless otherwise noted.)
ADG781/ADG782/ADG783
ABSOLUTE MAXIMUM RATINGS1(TA = 25°C unless otherwise noted.)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
Analog, Digital Inputs2 . . . . . . . . . . –0.3 V to VDD + 0.3 V or
30 mA, Whichever Occurs First
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . .30 mA
Peak Current, S or D . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
(Pulsed at 1 ms, 10% Duty Cycle max)
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Chip Scale Package
θJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 32°C/W
ORDERING GUIDELead Temperature, Soldering (10 sec) . . . . . . . . . . . . 300°C
IR Reflow (<20 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 235°C
NOTESStresses 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.Overvoltages at IN, S, or D will be clamped by internal diodes. Current should be
limited to the maximum ratings given.
PIN CONFIGURATION
(CSP)
Table I.Truth Table (ADG781/ADG782)
Table II.Truth Table (ADG783)
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 ADG781/ADG782/ADG783 feature 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.
TERMINOLOGY
Typical Performance Characteristics
VD OR VS – DRAIN OR SOURCE VOLTAGE – V0.5
1.51.522.533.544.5TPC 1.On Resistance as a Function of VD (VS)
1.5
VD OR VS – DRAIN OR SOURCE VOLTAGE – V0.5
1.51.522.533.544.55TPC 3.On Resistance as a Function of VD (VS) for
Different Temperatures VDD = 5 V
ADG781/ADG782/ADG783 TPC 5.Off Isolation vs. Frequency
TPC 6.Crosstalk vs. Frequency
TPC 7.On Response vs. Frequency
SOURCE VOLTAGE – V
INJ
pC
–100.51.522.533.544.55TPC 8.Charge Injection vs. Source Voltage
APPLICATIONSFigure 1 illustrates a photodetector circuit with programmable
gain. An AD820 is used as the output operational amplifier.
With the resistor values shown in the circuit, and using different
combinations of the switches, gain in the range of 2 to 16 can
be achieved.
