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AD8104
PRODUCTION600 MHz, 32 × 16 Buffered Analog Crosspoint Switch
Part Details
- High channel count, 32 × 16 high speed, nonblocking switch array
- Differential or single-ended operation
- Differential G = +1 (AD8104) or G = +2 (AD8105)
- Pin compatible with AD8117/AD8118, 32 x 32 switch arrays
- Flexible power supplies
- Single +5 V supply, or dual ±2.5 V supplies
- Serial or parallel programming of switch array
- Excellent video performance
- >50 MHz 0.1 dB gain flatness
- 0.05% differential gain error (RL = 150 Ω)
- 0.05° phase error (RL = 150 Ω)
- High impedance output disable allows connection of multiple devices with minimal loading on output bus
- Excellent ac performance
- Bandwidth: 600 MHz
- Slew rate: 1800 V/μs
- Settling time: 2.5 ns to 1%
- Low power of 1.7 W
- Low all hostile crosstalk
- < −70 dB at 5 MHz
- < −40 dB @ 600 MHz
- Reset pin allows disabling of all outputs (connected through a capacitor to ground provides power-on reset capability)
- 304-ball BGA package (31 mm × 31 mm)
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
- Routing of high speed signals including
- RGB and component video routing
- KVM
- Compressed video (MPEG, wavelet)
- Data communications
Documentation
This is the most up-to-date revision of the Data Sheet.
Software Resources
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AD8104 Evaluation Board