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AD8117

Obsolete

600 MHz, 32 × 32 Buffered Analog Crosspoint Switch

Data Sheet (Rev. B) Product Selection Table

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Overview

High channel count, 32 × 32 high speed, nonblocking switch array
Differential or single-ended operation
Differential G = +1
Flexible power supplies
- Single +5 V supply, or dual ±2.5 V supplies
Serial or parallel programming of switch array
High impedance output disable allows connection of multiple devices with minimal loading on output bus
Excellent video performance
- >50 MHz 0.1 dB gain flatness
- 0.05%/0.05° differential gain/phase error (R_L = 150 Ω)
Excellent ac performance
- Bandwidth: 600 MHz
- Slew rate: 1800 V/μs
- Settling time: 2.5 ns to 1%
See data sheet for additional features

The AD8117/AD8118 are high speed, 32 × 32 analog crosspoint switch matrices. They offer 600 MHz bandwidth and slew rate of 1800 V/μs for high resolution computer graphics (RGB) signal switching. With less than −70 dB of crosstalk and −80 dB isolation (at 5 MHz), the AD8117/AD8118 are useful in many high speed applications. The 0.1 dB flatness greater than 50 MHz makes the AD8117/AD8118 ideal for composite video switching.

The AD8117/AD8118 include 32 independent output buffers that can be placed into a high impedance state for paralleling crosspoint outputs so that off-channels present minimal loading to an output bus. The AD8117 has a differential gain of +1, while the AD8118 has a differential gain of +2 for ease of use in back terminated load applications. They operate as fully differential devices or can be configured for single-ended operation. Either a single +5 V supply or dual ±2.5 V supplies can be used, while consuming only 500 mA of idle current with all outputs enabled. The channel switching is performed via a double-buffered, serial digital control (which can accommodate daisy chaining of several devices), or via a parallel control, allowing updating of an individual output without reprogramming the entire array.

The AD8117/AD8118 are packaged in a 304-ball BGA package and are available over the extended industrial temperature range of −40°C to +85°C.

Applications