AD8115ASTZ

ANALOG DEVICES  AD8115ASTZ  芯片, 开关阵列 16X16 增益=2

Product Details

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.

Applications

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Routing of high speed signals, including

– Video NTSC, PAL, S, SECAM, YUV, RGB

– Compressed video MPEG, wavelet

– 3-level digital video HDB3

– Data communications

– Telecommunications

### Features and Benefits

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16 × 16 high speed nonblocking switch arrays: G = 2

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Serial or parallel programming of switch array

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Serial data out allows daisy-chaining of multiple 16 × 16 arrays to create larger switch arrays

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High impedance output disable allows connection of

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multiple devices without loading the output bus

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For smaller arrays see the AD8108/AD8109 8 × 8 or AD8110/AD8111 16 × 8 switch arrays

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Complete solution

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Buffered inputs

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Programmable high impedance outputs

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16 output amplifiers G = 2

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Drives 150 Ω loads

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Excellent video performance

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25 MHz, 0.1 dB gain flatness

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0.05%/0.05° differential gain/differential phase error RL = 150 Ω

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Excellent ac performance

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−3 dB bandwidth: 225 MHz

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Slew rate: 375 V/µs

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Low power of 700 mW 2.75 mW per point

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Low all hostile crosstalk of −70 dB at 5 MHz

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Reset pin allows disabling of all outputs connected through a capacitor to ground provides power-on reset capability

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100-lead LQFP 14 mm × 14 mm