a

AD8110/AD8111

260 MHz, 16

8 Buffered

Video Crosspoint Switches

FEATURES

16

8 High-Speed Nonblocking Switch Arrays

AD8110: G = +1

AD8111: G = +2

Serial or Parallel Switch Array Control

Serial Data Out Allows “Daisy Chaining” of Multiple

Crosspoints to Create Larger Switch Arrays

Pin-Compatible with AD8108/AD8109 8

8 Switch

Arrays

For a 16

16 Array See AD8116

Complete Solution

Buffered Inputs

Eight Output Amplifiers, AD8110 (G = +1),

AD8111 (G = +2)

Drives 150 V Loads

Excellent Video Performance

60 MHz 0.1 dB Gain Flatness

Excellent AC Performance

260 MHz –3 dB Bandwidth

500 V/ms Slew Rate

Low Power of 50 mA

Low All Hostile Crosstalk of –78 dB @ 5 MHz

Output Disable Allows Direct Connection of Multiple

Device Outputs

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

80-Lead LQFP Package (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)

FUNCTIONAL BLOCK DIAGRAM

AD8110/AD8111

SWITCH

MATRIX

OUTPUT

BUFFER

G = +1,

G = +2

40

40

128

40-BIT SHIFT REGISTER

WITH 5-BIT

PARALLEL LOADING

PARALLEL LATCH

DECODE

8

5:16 DECODERS

8

CLK

DATA IN

UPDATE

CE

RESET

16 INPUTS

A0

DATA

OUT

8 OUTPUTS

SET INDIVIDUAL

OR RESET ALL

OUTPUTS

TO "OFF"

A1

A2

SER/PAR D0 D1 D2 D3 D4

PRODUCT DESCRIPTION

The AD8110 and AD8111 are high-speed 16

× 8 video cross-

point switch matrices. They offer a –3 dB signal bandwidth

greater than 260 MHz, and channel switch times of less than

25 ns with 1% settling. With –78 dB of crosstalk and –97 dB

isolation (@ 5 MHz), the AD8110/AD8111 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 AD8110/AD8111

ideal for video signal switching.

The AD8110 and AD8111 include eight independent output

buffers that can be placed into a high impedance state for paral-

leling crosspoint outputs so that off channels do not load the

output bus. The AD8110 has a gain of +1, while the AD8111

offers a gain of +2. They operate on voltage supplies of

±5 V

while consuming only 50 mA of idle current. The channel

switching is performed via a serial digital control (which can

accommodate “daisy chaining” of several devices) or via a parallel

control, allowing updating of an individual output without repro-

gramming the entire array.

The AD8110/AD8111 is packaged in an 80-lead LQFP package

and is available over the extended industrial temperature range

of –40

°C to +85°C.

Rev. B

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