AD8105ABPZ

Analog General Purpose Crosspoint 600MHz 32 x 16 304Pin BGA

Product Details

The AD8104/AD8105 are high speed, 32 × 16 analog crosspoint switch matrices. They offer 600 MHz bandwidth and slew rate of 1800 V/μs for high resolution computer graphics RGB signal switching. With less than −70 dB of crosstalk and −90 dB isolation @ 5 MHz, the AD8104/AD8105 are useful in many high speed applications. The 0.1 dB flatness, which is greater than 50 MHz, makes the AD8104/AD8105 ideal for composite video switching.

The AD8104/AD8105 include 16 independent output buffers that can be placed into a high impedance state for paralleling crosspoint outputs so that off-channels present minimal loading to an output bus. The AD8104 has a differential gain of +1, while the AD8105 has a differential gain of +2 for ease of use in back-terminated load applications. They operate as fully differential devices or can be configured for single-ended operation. Either a single +5 V supply or dual ±2.5 V supplies can be used, while consuming only 340 mA of idle current with all outputs enabled. The channel switching is performed via a double-buffered, 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 AD8104/AD8105 are packaged in a 304-ball BGA package and are available over the extended industrial temperature range of −40°C to +85°C.

Applications

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Routing of high speed signals including

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RGB and component video routing

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KVM

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Compressed video MPEG, wavelet

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Data communications

### Features and Benefits

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High channel count, 32 × 16 high speed, nonblocking switch array

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Differential or single-ended operation

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Differential G = +1 AD8104 or G = +2 AD8105

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Pin compatible with AD8117/AD8118, 32 x 32 switch arrays

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Flexible power supplies 

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Single +5 V supply, or dual ±2.5 V supplies

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Serial or parallel programming of switch array

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Excellent video performance

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>50 MHz 0.1 dB gain flatness

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0.05% differential gain error RL = 150 Ω

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0.05° phase error RL = 150 Ω

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High impedance output disable allows connection of multiple devices with minimal loading on output bus

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Excellent ac performance

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Bandwidth: 600 MHz

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Slew rate: 1800 V/μs

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Settling time: 2.5 ns to 1%

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Low power of 1.7 W

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Low all hostile crosstalk

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< −70 dB at 5 MHz

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< −40 dB @ 600 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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304-ball BGA package 31 mm × 31 mm