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AD8114ASTZ2 Datasheet(PDF) 1 Page - Analog Devices |
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AD8114ASTZ2 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 32 page  Low Cost 225 MHz 16 × 16 Crosspoint Switches AD8114/AD8115 Rev. B 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 that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. 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 × 16 arrays to create larger switch arrays High impedance output disable allows connection of multiple devices without loading the output bus For smaller arrays see the 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 Ω loads Excellent video performance 25 MHz, 0.1 dB gain flatness 0.05%/0.05° differential gain/differential phase error (RL = 150 Ω) Excellent ac performance −3 dB bandwidth: 225 MHz Slew rate: 375 V/µs 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 (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 GENERAL DESCRIPTION The AD8114/AD81151 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 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 SET INDIVIDUAL OR RESET ALL OUTPUTS TO "OFF" A1 A2 SER/PAR D0 D1 D2 D3 D4 A3 SWITCH MATRIX Figure 1. 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 accommodate daisy-chaining of several devices) or via a parallel control, allowing updating of an individual output without reprogramming 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. 1Patent pending. |
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