AD8115 Low Cost, 225 MHz ,16 x 16 Crosspoint Switch, G=+2

The AD8114/AD8115 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 −98 dB isolation (at 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 a 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.

The AD8114/AD8115 include 16 independent output buffers that can be placed into a high impedance state for paralleling crosspoint outputs so that off channels do not load the output bus. The AD8114 has a gain of 1, while the AD8115 offers a gain of 2. They operate on voltage supplies of ±5 V while consuming only 70 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 reprogramming the entire array.

The AD8114/AD8115 is packaged in a 100-lead LQFP and is available over the extended industrial temperature range of −40°C to +85°C.

Applications

Features and Benefits

16 × 16 high speed nonblocking switch arrays: 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 (G = 2)
Drives 150 Ω loads

Buffered inputs

Programmable high impedance outputs

16 output amplifiers (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)

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

−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 at 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)

Switches & Multiplexers

Buffered Analog Crosspoint Switches

Data Sheets

Document	note
AD8114/AD8115: Low Cost, 225 MHz, 16 × 16 Crosspoint Switches Data Sheet (Rev. C)	PDF 396.12 K

User Guides

Document	note
UG-818: Evaluation Board for the AD8112, AD8113, AD8114, AD8115, and ADV3205 Analog Crosspoint Switches	PDF 622.35 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD8115ASTZ Production	100 ld LQFP	OTH 90	-40 to 85C	85.57	59.01	Y

Reference Materials

Product Selection Guide：High Speed Switches
Technical Articles：CMOS Switches Offer High Performance in Low Power, Wideband Applications

AD8114/AD8115: Low Cost, 225 MHz, 16 × 16 Crosspoint Switches Data Sheet (Rev. C) ad8114

UG-818: Evaluation Board for the AD8112, AD8113, AD8114, AD8115, and ADV3205 Analog Crosspoint Switches ad8114

High Speed Switches ad75019

CMOS Switches Offer High Performance in Low Power, Wideband Applications ad75019