AD8113JSTZ

Overview

The AD8113JSTZ is a fully buffered analog and digital crosspoint switch matrix featuring a 16x16 nonblocking array with a fixed gain of +2. It operates on dual supplies of ±5 V for video applications or ±12 V for audio applications, consuming 34 mA or 31 mA respectively. The device provides a –3 dB signal bandwidth exceeding 60 MHz and channel switch times under 60 ns. Key performance metrics include –83 dB crosstalk at 20 kHz, 90 dB isolation, and 0.002% total harmonic distortion at 20 kHz with ±12 V supplies. It is housed in a 100-lead LQFP package and supports serial or parallel programming interfaces.

Feature Summary

• Features a 16x16 high-speed nonblocking switch array with buffered inputs and 16 independent output amplifiers.
• Supports both serial and parallel programming modes, allowing individual output updates without reprogramming the entire array.
• Includes a serial data out pin that enables daisy-chaining multiple devices to create larger switch arrays.
• Offers an output disable function to minimize off-channel loading when connecting multiple devices.

Applications

• Analog and digital audio routers
• Video routers supporting NTSC, PAL, S-VIDEO, and SECAM standards
• Multimedia systems and video conferencing equipment
• CCTV surveillance systems

Procurement Notes

Verify the component authenticity by checking the marking code against Analog Devices documentation. Confirm the suffix JSTZ corresponds to the commercial temperature range (0°C to 70°C) and the 100-lead LQFP package. Ensure the device is handled with appropriate ESD precautions due to its sensitivity. Cross-reference the specific revision level if critical timing parameters are required for the design.

Selection Notes

Select this component for applications requiring a fully buffered 16x16 crosspoint matrix with low distortion. Choose ±12 V supplies for audio routing to achieve higher output swing and lower THD. Use ±5 V supplies for video applications to drive 150 Ω loads efficiently. Consider the power dissipation limits when operating at higher ambient temperatures or driving heavy loads. Verify interface compatibility with either serial or parallel control logic.

Part Context

The AD8113JSTZ belongs to the AD8113 series of analog and digital crosspoint switches manufactured by Analog Devices. It is part of a family designed for high-performance audio and video signal routing. The device integrates 256 transconductance stages arranged in a 16x16 matrix, providing a complete solution for signal switching with minimal external components.

Replacement Considerations

The AD8113ASTZ is a related variant within the same product family, offering different performance characteristics such as higher bandwidth. Verify pinout compatibility and electrical specifications before substitution. No direct public substitute part numbers are confirmed for this specific model.

FAQ

What is the valid input voltage range for the AD8113JSTZ?

The valid input voltage range is ±5 V when operated with ±12 V supplies and ±1.5 V when operated with ±5 V supplies.

How does the AD8113JSTZ handle input bias current?

It uses a unique bias current compensation scheme that samples and cancels contributions from each transconductance stage, resulting in a residual bias current of nominally zero regardless of the number of enabled inputs.

Can multiple AD8113JSTZ devices be connected together?

Yes, unused outputs can be disabled to minimize loading, and the serial data out pin allows daisy-chaining multiple devices for single-pin programming of larger switch arrays.