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AD8115AST Datasheet(PDF) 1 Page - Analog Devices |
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AD8115AST Datasheet(HTML) 1 Page - Analog Devices |
1 / 26 page 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD8114/AD8115* One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1998 Low Cost 225 MHz 16 16 Crosspoint Switches FUNCTIONAL BLOCK DIAGRAM AD8114/AD8115 OUTPUT BUFFER G = +1, G = +2 80 80 256 80-BIT SHIFT REGISTER WITH 5-BIT PARALLEL LOADING PARALLEL LATCH DECODE 16 5:16 DECODERS 16 CLK DATA IN UPDATE CE RESET 16 INPUTS A0 DATA OUT 16 OUTPUTS A1 A2 SER/PAR D0 D1 D2 D3 D4 A3 SWITCH MATRIX FEATURES 16 16 High Speed Nonblocking Switch Arrays AD8114; G = +1 AD8115; G = +2 Serial or Parallel Programming of Switch Array Serial Data Out Allows “Daisy Chaining” of Multiple 16 16s to Create Larger Switch Arrays High Impedance Output Disable Allows Connection of Multiple Devices Without Loading the Output Bus For Smaller Arrays See Our AD8108/AD8109 (8 8) or AD8110/AD8111 (16 8) Switch Arrays Complete Solution Buffered Inputs Programmable High Impedance Outputs 16 Output Amplifiers, AD8114 (G = +1), AD8115 (G = +2) Drives 150 Loads Excellent Video Performance 25 MHz, 0.1 dB Gain Flatness 0.05%/0.05 Differential Gain/Differential Phase Error (RL = 150 ) Excellent AC Performance –3 dB Bandwidth: 225 MHz Slew Rate: 375 V/ s Low Power of 700 mW (2.75 mW per Point) Low All Hostile Crosstalk of –70 dB @ 5 MHz Reset Pin Allows Disabling of All Outputs (Connected Through a Capacitor to Ground Provides “Power-On” Reset Capability) 100-Lead LQFP Package (14 mm 14 mm) APPLICATIONS Routing of High Speed Signals Including: Video (NTSC, PAL, S, SECAM, YUV, RGB) Compressed Video (MPEG, Wavelet) 3-Level Digital Video (HDB3) Datacomms Telecomms PRODUCT DESCRIPTION The AD8114/AD8115 are high speed 16 × 16 video crosspoint switch matrices. They offer a –3 dB signal bandwidth greater than 200 MHz and channel switch times of less than 50 ns with 1% settling. With –70 dB of crosstalk and –90 dB isolation (@ 5 MHz), the AD8114/AD8115 are useful in many high speed applications. The differential gain and differential phase of better than 0.05% and 0.05 ° respectively, along with 0.1 dB flatness out to 25 MHz while driving a 75 Ω back-terminated load, make the AD8114/AD8115 ideal for all types of signal switching. The AD8114 /AD8115 include 16 independent output buffers that can be placed into a high impedance state for paralleling crosspoint outputs so that off channels do not load the output bus. The AD8114 has a gain of +1, while the AD8115 offers a gain of +2. They operate on voltage supplies of ±5 V while consuming only 70 mA of idle current. The channel switching is performed via a serial digital control (which can accommo- date “daisy chaining” of several devices) or via a parallel control allowing updating of an individual output without reprogram- ming the entire array. The AD8114/AD8115 is packaged in 100-lead LQFP package and is available over the extended industrial temperature range of –40 °C to +85°C. *Patent Pending. |
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