AD8118: 600 MHz, 32 × 32 Buffered Analog Crosspoint Switch
The AD8117/AD8118 are high speed, 32 × 32 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 AD8117/AD8118 are useful in many high speed applications. The 0.1 dB flatness greater than 50 MHz makes the AD8117/AD8118 ideal for composite video switching.
The AD8117/AD8118 include 32 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 AD8117 has a differential gain of +1, while the AD8118 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 500 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 reprogram-ming the entire array.
The AD8117/AD8118 are packaged in a 304-ball BGA package and are available over the extended industrial temperature range of −40°C to +85°C.
产品应用领域 Applications
- Routing of high speed signals including
- RGB and component video routing
- KVM
- Compressed video (MPEG, wavelet)
- Data communications
AD8118 特点
- High channel count, 32 × 32 high speed, non-blocking switch array
- Differential G = +1 (AD8117) or G = +2 (AD8118)
- Flexible power supplies
Single +5 V supply, or dual ±2.5 V supplies - High impedance output disable allows connection of multiple devices with minimal loading on output bus
- Excellent video performance
>50 MHz 0.1 dB gain flatness
0.05%/0.05° differential gain/phase error
(RL = 150 Ω) - Differential or single-ended operation
- Serial or parallel programming of switch array
- Excellent ac performance
Bandwidth: 600 MHz
Slew rate: 1800 V/μs
Settling time: 2.5 ns to 1% - Low power of 2.5 W
- Low all hostile crosstalk < −70 dB @ 5 MHz
< −43 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)
AD8118 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD8118-EVAL | 量产 | None Available | - | 工业 |
| AD8118ABPZ | 量产 | 304 Ball SBGA | 304 | 工业 |