AD8108AST: 325 MHz, 8 x 8 Buffered Video Crosspoint Switch (Gain = 1)
The AD8108/AD81091 are high speed 8 x 8 video crosspoint switch matrices. They offer a –3 dB signal bandwidth greater than 250 MHz and channel switch times of less than 25 ns with 1% settling. With –83 dB of crosstalk and –98 dB isolation (@ 5 MHz), the AD8108/AD8109 are useful in many high speed applications. The differential gain and differential phase of better than 0.02% and 0.02°, respectively, along with 0.1 dB flatness out to 60 MHz, make the AD8108/AD8109 ideal for video signal switching.
The AD8108/AD8109 is packaged in an 80-lead LQFP package and is available over the extended industrial temperature range of -40°C to +85°C.
An evaluation board is available for this product and may be ordered using the following product number: AD8108-EB and AD8109-EB. Schematic and layout for this evaluation board is contained in the product datasheet.
AD8108AST 特点
- 8 x 8 High-speed nonblocking switch arrays
AD8108: G = 1
AD8109: G = 2 - Serial or parallel programming of switch array
- Serial data out allows daisy-chaining of multiple 8 x 8 arrays to create larger switch arrays
- Output disable allows connection of multiple devices
- Pin-compatible with AD8110/AD8111 16 x 8 switch arrays
For 16 x 16 arrays see AD8116 - Complete solution
Buffered inputs
Eight output amplifiers, AD8108 (G = 1)
Drives 150 Ω loads - Excellent video performance
60 MHz 0.1 dB gain flatness
0.02%/0.02° differential gain/differential
phase error - Excellent ac performance
-3 dB bandwidth: 325 MHz (8108), 250 MHz (AD8109)
Slew rate: 400 V/µs (AD8108), 480 V/µs (AD8109) - Low power of 45 mA
- Low all hostile crosstalk of -83 dB @ 5 MHz
- Reset pin allows disabling of all outputs (connected through a capacitor to ground provides power-on reset capability)
- Excellent ESD rating: exceeds 4000 V human body model
AD8108AST 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD8108-EB | 量产 | Evaluation Boards | - | 商业 |
| AD8108AST | 量产 | 80 ld LQFP (12x12x1.4mm) | 80 | 工业 |
| AD8108ASTZ | 量产 | 80 ld LQFP (12x12x1.4mm) | 80 | 工业 |
