AD8178 Datasheet PDF – Triple 16 × 5 Video Crosspoint Switch

Part Number: AD8178

Function: 450 MHz, Triple 16 × 5 Video Crosspoint Switch

Package: 676-Ball Plastic Ball Grid Array [PBGA] Type

Manufacturer: Analog Devices

Pinouts and Block diagram :

AD8178 datasheet



The AD8178 is a high speed, triple 16 × 5 video crosspoint switch matrix. It supports 1600 × 1200 RGB displays @ 85 Hz refresh rate,by offering a 450 MHz bandwidth and a slew rate of 1650 V/μs.
With −82 dB of crosstalk and −90 dB isolation (@ 5 MHz), the AD8178 is useful in many high speed video applications. The AD8178 supports two modes of operation: differential-in to differential-out mode with sync-on CM signaling passed through the switch and differential-in to differential-out mode with CM signaling removed through the switch. The output CM and black level can be conveniently set via external pins. The outputs can be used single-ended in conjunction with decoded H and V outputs to drive a monitor directly. The independent output buffers of the AD8178 can be placed into a high impedance state to create larger arrays by paralleling crosspoint outputs. Inputs can be paralleled as well. The AD8178 offers both serial and a parallel programming modes.


1. Large, triple 16 × 5 high speed, nonblocking switch array
2. Pin compatible with the AD8175andAD8176(16 × 9 switch arrays) and the AD8177(16 × 5 switch array)
3. Differential or single-ended operation
4. Supports sync-on common-mode and sync-on color operating modes
5. RGB and HV outputs available for driving monitor directly G = +4 operation (differential input to differential output)
6. Flexible power supplies: +5 V or ±2.5 V
7. Logic ground for convenient control interface
8. Serial or parallel programming of switch array
9. High impedance output disable allows connection of multiple devices with minimal loading on output bus
10. Adjustable output CM and black level through external pins
11. Excellent ac performance
12. Bandwidth: 450 MHz
13. Slew rate: 1650 V/μs
14. Settling time: 4 ns to 1% to support 1600 × 1200 @ 85Hz
15. Low power of 2.3 W
16. Low all hostile crosstalk
(1) −82 dB @ 5 MHz
(2) −47 dB @ 500 MHz
17. Wide input common-mode range of 4 V
18. Reset pin allows disabling of all outputs
19. Fully populated 26 × 26 ball PBGA package (27 mm × 27 mm, 1 mm ball pitch)
20. Convenient grouping of RGB signals for easy routing

1. RGB video switching
2. KVM
3. Professional video

Other data sheets are available within the file: AD8178-EVALZ, AD8178ABPZ

AD8178 Datasheet PDF Download

AD8178 pdf