Part Number: AD8108
Function: 325 MHz, 8×8 Buffered Video Crosspoint Switch
Package: 80-lead LQFP (12 mm × 12 mm) Type
Manufacturer: Analog Devices
Pinouts:
Description
The AD8108 / AD8109 are high speed 8 × 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.
Features
8 × 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 × 8 arrays
to create larger switch arrays
Output disable allows connection of multiple devices
Pin-compatible with AD8110/AD8111 16 × 8 switch arrays
For 16 × 16 arrays see AD8116
Complete solution
Buffered inputs
Eight output amplifiers
AD8108 (G = 1)
AD8109 (G = 2)
Drives 150 Ω loads
Excellent video performance
60 MHz 0.1 dB gain flatness
0.02%/0.02° differential gain/differential phase error
(RL= 150 Ω)
Excellent ac performance
−3 dB bandwidth: 325 MHz (AD8108), 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 providespower-on reset capability)
Excellent ESD rating: exceeds 4000 V human body model
80-lead LQFP (12 mm × 12 mm)
Applications
Routing of high speed signals including
Composite video (NTSC, PAL, S, SECAM)
Component video (YUV, RGB)
Compressed video (MPEG, Wavelet)
3-level digital video (HDB3)
VS= ±5 V, TA= +25°C, RL= 1 kΩ, unless otherwise noted.
AD8108 Datasheet PDF Download
Other data sheets are available within the file:
AD8108,AD8108-EB,AD8108AST,AD8108ASTZ,AD8109