ADG794BRQZ-REEL ,Low Voltage, 300 MHz Quad 2:1 Mux Analog HDTV Audio/Video SwitchFEATURES FUNCTIONAL BLOCK DIAGRAM Bandwidth: 300 MHz ADG794Low insertion loss and on resistance: 5 ..
ADG794BRQZ-REEL ,Low Voltage, 300 MHz Quad 2:1 Mux Analog HDTV Audio/Video SwitchGENERAL DESCRIPTION The ADG794 is a monolithic CMOS device comprising four These switches conduct e ..
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ADG794BRQZ-ADG794BRQZ-REEL-ADG794BRQZ-REEL7
Low Voltage, 300 MHz Quad 2:1 Mux Analog HDTV Audio/Video Switch
Low Voltage, 300 MHz Quad 2:1 Mux Analog
HDTV Audio/Video Switch
Rev. 0
FEATURES
Bandwidth: 300 MHz
Low insertion loss and on resistance: 5 Ω typical
On resistance flatness: 0.68 Ω typical
Single 3 V/5 V supply operation
Low quiescent supply current: 1 nA typical
Fast switching times:
tON, 7 ns
tOFF, 5 ns
TTL/CMOS compatible
APPLICATIONS
RGB switches
HDTV
DVD-R
Audio/video switches
FUNCTIONAL BLOCK DIAGRAM IN
S1A
S1B
S2A
S2B
S3A
S3B
S4A
S4B05150-001
Figure 1.
GENERAL DESCRIPTION The ADG794 is a monolithic CMOS device comprising four
2:1 multiplexer/demultiplexers with high impedance outputs.
The CMOS process provides low power dissipation yet gives
high switching speed and low on resistance. The on resistance
variation is typically less than 1.2 Ω over the input signal range.
The bandwidth of the ADG794 is typically 300 MHz and this,
coupled with low distortion (typically 0.68%), makes the part
suitable for switching analog audio/video signals.
The ADG794 operates from a single 3.3 V/5 V supply and is
TTL logic compatible. The switches are controlled by the logic
inputs IN and EN as shown in Table 4. The EN pin allows the
user to disable all switches.
These switches conduct equally well in both directions when on.
In the off condition, signal levels up to the supplies are blocked.
The ADG794 switches exhibit break-before-make switching
action.
The ADG794 is available in a 16-pin QSOP package.
PRODUCT HIGHLIGHTS 1. Wide bandwidth: 300 MHz.
2. Ultralow power dissipation.
3. Crosstalk is typically −70 dB at 10 MHz.
4. Off isolation is typically −65 dB at 10 MHz.
TABLE OF CONTENTS Specifications.....................................................................................3
Single Supply.................................................................................3
Absolute Maximum Ratings............................................................5
ESD Caution..................................................................................5
Pin Configuration and Function Descriptions.............................6
Terminology......................................................................................7
Typical Performance Characteristics..............................................8
Typical Application.......................................................................8
Test Circuits........................................................................................9
Outline Dimensions.......................................................................11
Ordering Guide..........................................................................11
REVISION HISTORY
10/04—Revision 0: Initial Version
SPECIFICATIONS
SINGLE SUPPLY VDD = 5 V ± 10%, GND = 0 V. All specifications TMIN to TMAX, unless otherwise noted.
Table 1. 1 Temperature range for B Version is −40°C to +85°C. Guaranteed by design, not subject to production test.
VDD = 3 V ± 10%, GND = 0 V. All specifications TMIN to TMAX, unless otherwise noted.
Table 2. Temperature range for B Version is −40°C to +85°C.
2 Guaranteed by design, not subject to production test.
ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted.
Table 3. Overvoltages at IN, S, or D are clamped by internal diodes. Current should be
limited to the maximum ratings given.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent 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.
Table 4. Truth Table
ESD 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 this product 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.
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
S1A
S1B
S2B
S2A
S4A
S4B
S3B
GNDD3
S3A
VDD
TOP VIEW
(Not to Scale)
ADG79405150-002
Figure 2. Pin Configuration
Table 5. Pin Function Descriptions
