D8189 Analog Devices, D8189 Datasheet
D8189
Related parts for D8189
D8189 Summary of contents
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... Switching RGB in LCD and plasma displays RGB video switchers and routers GENERAL DESCRIPTION The AD8188 ( and AD8189 ( are high speed, single-supply, triple 2-to-1 multiplexers. They offer −3 dB small signal bandwidth of 350 MHz and −3 dB large signal bandwidth of 300 MHz, along with a slew rate in excess of 1000 V/μs. With − ...
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... AD8188/AD8189 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 5 Thermal Resistance ...................................................................... 5 Maximum Power Dissipation ..................................................... 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Typical Performance Characteristics ............................................. 7 Theory of Operation ...................................................................... 14 High Impedance Disable ........................................................... 14 Off Isolation ................................................................................ 14 REVISION HISTORY 10/06—Revision 0: Initial Version Full Power Bandwidth vs. − ...
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... Output Voltage Swing Short-Circuit Current Output Resistance Output Capacitance POWER SUPPLY Operating Range Power Supply Rejection Ratio Quiescent Current SWITCHING CHARACTERISTICS Channel-to-Channel Switching Time Enable-to-Channel On Time = 1 kΩ to 2.5 V. For the AD8189 Conditions V = 200 mV p-p OUT p-p OUT V ...
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... DIGITAL INPUTS Logic 1 Voltage Logic 0 Voltage Logic 1 Input Current Logic 0 Input Current Conditions 50% logic to 50% output settling, input = 1 V All channels grounded All channels grounded SEL A/B, OE SEL A/B, OE SEL A/ 2.0 V SEL A/ 0.5 V Rev Page AD8188/AD8189 Min Typ Max Unit 17/5 ns 21/45 mV 64/118 mV 1.6 V 0.6 ...
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... V ≤ V GND IN CC Indefinite While the AD8188/AD8189 is internally short circuit protected, –40°C to +85°C this may not be sufficient to guarantee that the maximum junction –65°C to +150°C temperature (150°C) is not exceeded under all conditions. To 300°C ensure proper operation necessary to observe the maximum power derating curves shown in Figure 3 ...
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... IN1A Input, High AD8188: Bypass point for internal reference. Does not affect dc level of output. REF AD8189: Input to reference buffers for all channels. Can be used to offset the outputs. 5 IN2A Input, High-Z 6, 13, 17, 21 Positive Analog Supply. Nominally 5 V higher than V ...
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... FREQUENCY (MHz) Figure 9. AD8189 Frequency Response p-p, R OUT 1 0 –1 –2 –3 –4 –5 –6 0 100 FREQUENCY (MHz) Figure 10. AD8189 Large Signal Bandwidth vs. Temperature p- 150 Ω OUT L 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 1k 10k = 150 Ω 150 Ω ...
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... All INxA, Listen to Output with INxB Selected) 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 0 100 FREQUENCY (MHz) Figure 15. AD8189 Adjacent Channel Crosstalk vs. Frequency 0 –10 –20 –30 –40 –50 –60 –70 –80 – 100 FREQUENCY (MHz) Figure 16. AD8189 Off Isolation vs. Frequency ...
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... 10k 0.01 Figure 22. AD8189 Input Voltage Noise vs. Frequency Rev Page AD8188/AD8189 THIRD SECOND 10 FREQUENCY (MHz p-p, R OUT –PSRR +PSRR 0 FREQUENCY (MHz) Figure 21. AD8189 PSRR vs. Frequency 150 Ω ...
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... Figure 27. AD8189 Enabled Output Impedance vs. Frequency 10k 1k 100 10 1 0.1 100 1k 0.1 Figure 28. AD8189 Disabled Output Impedance vs. Frequency Rev Page 100 FREQUENCY (MHz) Figure 26. AD8189 Input Impedance vs. Frequency 1 10 100 FREQUENCY (MHz 100 FREQUENCY (MHz ...
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... Figure 32. AD8189 Small Signal Pulse Response 200 mV p- 150 kΩ OUT L INPUT OUTPUT TIME (ns) Figure 33. AD8189 Video Amplitude Pulse Response 1 150 kΩ OUT L INPUT OUTPUT TIME (ns) Figure 34. AD8189 Large Signal Pulse Response p- 150 kΩ OUT L 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 25 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2 ...
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... TIME (2ns/DIV Step, R OUT SEL A/B 0 OUTPUT TIME (ns) Figure 39. AD8189 Channel-to-Channel Switching Time p-p, INxA = 3.0 V, INxB = 2.0 V OUT SEL A/B 0 OUTPUT TIME (ns) Figure 40. AD8189 Channel Switching Transient (Glitch), INxA = INxB = REF = 150 Ω L 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 25 3.0 2.9 2.8 2.7 2.6 2.5 2 ...
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... OUT 3.0 2.0 2.9 1.5 2.8 1.0 2.7 0.5 2.6 0 2.5 –0.5 2.4 –1 Figure 44. AD8189 Channel Enable/Disable Transient (Glitch) Rev Page AD8188/AD8189 OE OUTPUT 100 120 140 160 TIME (ns) Figure 43. AD8189 Enable On/Off Time OUT OE OUTPUT ...
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... The high impedance disable allows larger matrices to be built by busing the outputs together. In the case of the AD8189 (G = 2), the reference buffers also disable to a state of high output impedance. This feature prevents the feedback network of a disabled channel from loading the output, which is valuable when busing together the outputs of several muxes ...
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... If the user decides to set V black level to preferentially run video signals on the faster NPN transistor path, the AD8189 allows a reference OUT0 voltage as low as 1 300 the AD8189 is used, the sync pulse is amplified to 600 mV. Therefore, the lower limit on V routing RGB video, an advantageous configuration is to VFO employ +3 V and − ...
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... While effective, this ruse also affects the dc and termination characteristics Ω system. The AD8188 and AD8189 are built with a variable compensation scheme that senses the output reactance and trades bandwidth for phase margin, ensuring faster settling and lower overshoot at higher capacitive loads ...
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... For the unity-gain AD8188, the output dc level is the same as the input, while for the gain-of-two AD8189, the V input can be biased to obtain an appropriate output dc level. Figure 53 shows a circuit that provides a gain-of-two and is dc-coupled ...
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... AD8188/AD8189 RGB SOURCE RGB SOURCE RGB SOURCE RGB SOURCE 100Ω 100Ω The circuit in Figure 55 can increase the crosstalk between inputs, because each input signal creates a small signal on V due to its nonzero impedance. There are several means to minimize this ...
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... AD8189. The input points of the AD8189 are switched to a 1.5 V reference by the ADG786, which works in the following manner: • The SEL A/ B signal selects the input to the AD8189. It also selects the switch positions in the ADG786 such that the same selected inputs are connected to V • ...
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... AD8188/AD8189 HIGH SPEED DESIGN CONSIDERATIONS The AD8188/AD8189 are extremely high speed switching amplifiers for routing the highest resolution graphic signals. Extra care is required in the circuit design and layout to ensure that the full resolution of the video is realized. First, the board should have at least one layer of a solid ground plane ...
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... EVALUATION BOARD An evaluation board has been designed and is offered for running the AD8188/AD8189 on a single supply. The inputs and outputs are ac-coupled and terminated with 75 Ω resistors. For the AD8189, a potentiometer is provided to allow setting V at any value between V and ground. REF ...
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... AD8188/AD8189 Figure 59. Component Side Silkscreen Figure 60. Circuit Side Silkscreen Rev Page ...
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... SCHEMATICS Figure 61. Single-Supply Evaluation Board Rev Page AD8188/AD8189 06239-061 ...
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... AD8189ARUZ –40°C to +85°C 1 AD8189ARUZ-RL –40°C to +85°C 1 AD8189ARUZ-R7 –40°C to +85°C 1 AD8188Z-EVALZ 1 AD8189Z-EVALZ Pb-free part. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06239-0-10/06(0) 7.90 7.80 7. 4.50 4.40 4 ...