低成本的225兆赫16×16交叉点开关ad8114/ad8115数据表

　　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 −98 dB isolation （at 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 a 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 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 a 100-lead LQFP and is available over the extended industrial temperature range of −40°C to +85°C.