700 MHz, 5 mA a 4-to-1 Video Multiplexer AD8184 FEATURES FUNCTIONAL BLOCK DIAGRAM Single and Dual 2-to-1 Also Available (AD8180 and AD8182) Fully Buffered Inputs and Outputs IN0 +1 +V 1 14 S Fast Channel Switching: 10 ns High Speed GND 2 13 A0 > 700 MHz Bandwidth (3 dB) IN1 A1 3 +1 12 > 750 V/ms Slew Rate DECODER GND 4 11 ENABLE Fast Settling Time of 15 ns to 0.1% IN2 5 +1 10 OUT Excellent Video Specifications (R > 2 kV) L GND Gain Flatness of 0.1 dB of 75 MHz 6 9 NC 0.01% Differential Gain Error, R = 10 kV L IN3 7 8 V +1 S AD8184 0.018 Differential Phase Error, R = 10 kV L Low Power: 4.4 mA NC = NO CONNECT Low Glitch: < 25 mV Low All-Hostile Crosstalk of 95 dB 5 MHz High OFF Isolation of 115 dB 5 MHz Low Cost Fast Output Disable Feature for Connecting Multiple Devices Table I. Truth Table APPLICATIONS ENABLE A1 A0 OUTPUT Pin Compatible with HA4314* and GX4314* Video Switchers and Routers 0 0 0 IN0 Pixel Switching for Picture-In-Picture 0 0 1 IN1 Switching in LCD and Plasma Displays 0 1 0 IN2 0 1 1 IN3 1 X X High Z PRODUCT DESCRIPTION 5 The AD8184 is a high speed 4-to-1 multiplexer. It offers 3 dB V = 50mVrms IN signal bandwidth of 700 MHz along with a slew rate of 750 V/s. 4 R = 5k L With 95 dB of crosstalk and 115 dB isolation, it is useful in 3 many high speed applications. The differential gain and differ- 2 ential phase error of 0.01% and 0.01, along with 0.1 dB flatness 1 of 75 MHz, make AD8184 ideal for professional video multi- plexing. It offers 10 ns switching time, making it an excellent 0 choice for pixel switching (picture-in-picture) while consuming 1 less than 4.5 mA on 5 V supply voltage. 2 The AD8184 offers a high speed disable feature allowing the 3 output to be put into a high impedance state. This allows mul- 4 tiple outputs to be connected together for cascading stages while the OFF channels do not load the output bus. It operates on 5 1M 10M 100M 1G voltage supplies of 5 V and is offered in 14-lead PDIP and FREQUENCY Hz SOIC packages. Figure 1. Small Signal Frequency Response *All trademarks are the property of their respective holders. REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. which may result from its use. No license is granted by implication or Tel: 617/329-4700 World Wide Web Site: ( T = +258C, V = 65 V, R = 2 kV unless otherwise noted) AD8184SPECIFICATIONS A S L AD8184A Parameter Conditions Min Typ Max Units SWITCHING CHARACTERISTICS 1 Channel Switching Time Channel-to-Channel 50% Logic to 10% Output Settling IN0 = +1 V, IN1 = 1 V 5 ns 50% Logic to 90% Output Settling 10 ns 50% Logic to 99.9% Output Settling 15 ns 2 ENABLE to Channel ON Time A0, A1 = 0 or 1 50% Logic to 90% Output Settling IN0 = +1 V, 1 V or IN1 = 1 V, +1 V 12 ns 2 ENABLE to Channel OFF Time A0, A1 = 0 or 1 50% Logic to 90% Output Settling IN1 = +1 V, 1 V or IN1 = 1 V, +1 V 22 ns 3 Channel Switching Transient (Glitch) All Inputs Are Grounded 25 mV DIGITAL INPUTS Logic 1 Voltage A0, A1 and ENABLE Inputs 2.0 V Logic 0 Voltage A0, A1 and ENABLE Inputs 0.8 V Logic 1 Input Current A0, A1, ENABLE = +4 V 10 200 nA Logic 0 Input Current A0, A1, ENABLE = +0.4 V 2 3 A DYNAMIC PERFORMANCE 4 3 dB Bandwidth (Small Signal) AD8184AR V = 50 mV rms, R = 5 k 550 700 MHz IN L 3 dB Bandwidth (Large Signal) AD8184AR V = 1 V rms, R = 5 k 105 135 MHz IN L 4, 5 0.1 dB Bandwidth AD8184AR V = 50 mV rms, R = 5 k 60 75 MHz IN L Slew Rate 2 V Step 600 750 V/s Settling Time to 0.1% 2 V Step 15 ns DISTORTION/NOISE PERFORMANCE Differential Gain = 3.58 MHz, R = 2 k 0.2 % L f = 3.58 MHz, R = 10 k 0.01 0.02 % L Differential Phase f = 3.58 MHz, R = 2 k 0.2 Degrees L f = 3.58 MHz, R = 10 k 0.01 0.02 Degrees L 6 All Hostile Crosstalk AD8184AR = 5 MHz 95 dB = 30 MHz 78 dB 7 OFF Isolation AD8184AR = 5 MHz, R = 30 115 dB L Voltage Noise = 30 MHz 4.5 nV/Hz Total Harmonic Distortion = 10 MHz, V = 2 V p-p, R = 1 k 74 dBc C O L DC/TRANSFER CHARACTERISTICS 8 Voltage Gain V = 1 V 0.982 V/V IN Input Offset Voltage 28 mV T to T 15 mV MIN MAX Input Offset Voltage Drift 5 V/C Input Offset Voltage Matching Channel-to-Channel 0.6 3 mV Input Bias Current 2.5 7.5 A T to T 9.5 A MIN MAX Input Bias Current Drift 5 nA/C INPUT CHARACTERISTICS Input Resistance 1.0 2.4 M Input Capacitance Channel Enabled (R Package) 1.6 pF Channel Disabled (R Package) 1.6 pF Input Voltage Range 3.3 V OUTPUT CHARACTERISTICS 9 Output Voltage Swing V = 4 V, R = 2 k 3.15 3.2 V IN L Short Circuit Current 30 mA Output Resistance Enabled 28 33 Disabled 10 M Output Capacitance Disabled (R Package) 3.2 pF POWER SUPPLY Operating Range 4 6V Power Supply Rejection Ratio +PSRR +V = +4.5 V to +5.5 V, V = 5 V 54 57 dB S S Power Supply Rejection Ratio PSRR V = 4.5 V to 5.5 V, +V = +5 V 51 54 dB S S Quiescent Current Enabled 4.4 5.2 mA T to T 5.7 mA MIN MAX Disabled 2.1 2.9 mA T to T 2.9 mA MIN MAX OPERATING TEMPERATURE RANGE 40 +85 C 2 REV. 0