GENERAL DESCRIPTION

The AD8114/AD81151 are high speed 16 × 16 video crosspoint switch matrices. They offer a −3 dB signal bandwidth greater than 200 MHz and channel switch times of less than 50 ns with 1 settling. With −70 dB of crosstalk and −90 dB isolation (@ 5 MHz), the AD8114/AD8115 are useful in many high speed applications. The differential gain and differential phase of better than 0.05 and 0.05°, respectively, along with 0.1 dB flatness out to 25 MHz while driving a 75 Ω back-terminated load, make the AD8114/AD8115 ideal for all types of signal switching.

FEATURES

16 × 16 high speed nonblocking switch arrays

AD8114; G = 1

AD8115; G = 2

Serial or parallel programming of switch array

Serial data out allows daisy-chaining of multiple

16 × 16 arrays to create larger switch arrays

High impedance output disable allows connection of

multiple devices without loading the output bus

For smaller arrays see the AD8108/AD8109 (8 × 8) or

AD8110/AD8111 (16× 8) switch arrays

Complete solution

Buffered inputs

Programmable high impedance outputs

16 output amplifiers, AD8114 (G = 1), AD8115 (G = 2)

Drives 150 Ω loads

Excellent video performance

25 MHz, 0.1 dB gain flatness

0.05/0.05° differential gain/differential phase error

(RL = 150 Ω)

Excellent ac performance

−3 dB bandwidth: 225 MHz

Slew rate: 375 V/µs

Low power of 700 mW (2.75 mW per point)

Low all hostile crosstalk of −70 dB @ 5 MHz

Reset pin allows disabling of all outputs (connected through

a capacitor to ground provides power-on reset capability)

100-lead LQFP (14 mm × 14 mm)

APPLICATIONS

Routing of high speed signals including

Video (NTSC, PAL, S, SECAM, YUV, RGB)

Compressed video (MPEG, wavelet)

3-level digital video (HDB3)

Datacomms

Telecomms