adg794 Analog Devices, Inc., adg794 Datasheet
adg794
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adg794 Summary of contents
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... The bandwidth of the ADG794 is typically 300 MHz and this, coupled with low distortion (typically 0.18%), 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 shown in Table 4. The EN pin allows the user to disable all switches ...
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... ADG794 TABLE OF CONTENTS Features ...................................................................................................1 Applications............................................................................................1 Functional Block Diagram ...................................................................1 General Description ..............................................................................1 Product Highlights ................................................................................1 Revision History ....................................................................................2 Specifications..........................................................................................3 Single Supply ......................................................................................3 Absolute Maximum Ratings.................................................................5 REVISION HISTORY 4/06—Rev Rev. A Changes to Features Section............................................................ 1 Changes to Product Highlights Section......................................... 1 Changes to Specifications Section.................................................. 3 Changes to Typical Performance Characteristics......................... 8 10/04—Revision 0: Initial Version ESD Caution ...
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... MHz typ 0.18 % typ 7.5 pC typ 8 pF typ 14 pF typ 23 pF typ 0.001 μA typ 1 μA max Rev Page ADG794 Test Conditions/Comments −10 mA; Figure − − V/1 V ...
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... ADG794 ± 10%, GND = 0 V. All specifications T DD Table 2. Parameter ANALOG SWITCH Analog Signal Range On Resistance ( Resistance Match between Channels (∆R On Resistance Flatness (R ) FLAT(ON) LEAKAGE CURRENTS Source Off Leakage, I (Off ) S Drain Off Leakage, I (Off ) D Channel On Leakage (On DIGITAL INPUTS ...
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... 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 Rev Page ADG794 Function Hi-Z Hi-Z Hi-Z Hi-Z Disable S1A S2A S3A ...
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... A-Side Source Terminal of Mux4. Can be an input or output Mux Enable Logic Input. Enables or disables the multiplexers (see Table 4 Positive Power Supply Voltage S1A ADG794 S1B S4A 3 14 TOP VIEW D1 S4B 4 13 (Not to Scale) S2A S2B S3A ...
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... Bandwidth The frequency at which the output is attenuated by 3 dB. On Response The frequency response of the on switch. Insertion Loss The loss due to the on resistance of the switch. THD + N The ratio of the harmonic amplitudes plus noise of a signal to the fundamental. Rev Page ADG794 ...
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... ADG794 TYPICAL PERFORMANCE CHARACTERISTICS – 50Ω 25°C A –30 –50 –70 –90 –110 0 FREQUENCY (MHz) Figure 3. Off Isolation vs. Frequency 50Ω 25°C –20 A –40 –60 –80 –100 –120 0 FREQUENCY (MHz) Figure 4. Crosstalk vs. Frequency –10 ...
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... TYPICAL APPLICATION ADG794 R RGB VIDEO G SIGNAL SOURCE 1 B AUDIO/SYNC/OTHER SIGNAL SOURCE RGB VIDEO G SIGNAL SOURCE 2 B AUDIO/SYNC/OTHER SIGNAL SOURCE 2 Figure 7. Audio/Video Switch Rev Page OUTPUT G OUTPUT B OUTPUT AUDIO/SYNC/ OTHER OUTPUT ADG794 ...
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... OUT OUT 50Ω 35pF V DECODER IN GND Figure 12. Break-Before-Make Time Delay V DD 0.1µF ADG794 S1A GND Figure 13. Bandwidth Rev Page (OFF CONNECT Figure 10. On Leakage 3V 50% 50% 90% 90 OFF ...
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... Figure 14. Off Isolation NETWORK ANALYZER S1A 50Ω OUT S2A R L 50Ω 50Ω 50Ω OUT 1nF OUT C L 1nF V OUT D3 V OUT 1nF D4 V OUT C L 1nF Rev Page ADG794 ΔV OUT = C × ΔV INJ L OUT ...
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... Dimensions shown in inches and (millimeters) Package Description 16-Lead Shrink Small Outline Package (QSOP) 16-Lead Shrink Small Outline Package (QSOP) 16-Lead Shrink Small Outline Package (QSOP) 16-Lead Shrink Small Outline Package (QSOP) D05150-0-4/06(A) Rev Page 8° 0° 0.050 (1.27) 0.010 (0.25) 0.016 (0.41) 0.006 (0.15) ADG794 Package Option RQ-16 RQ-16 RQ-16 RQ-16 ...