AD9884KS-140

Overview

The AD9884KS-140 is a high-performance analog flat panel interface integrated circuit manufactured by Analog Devices. It features three 8-bit analog-to-digital converters (ADCs) operating at a maximum sampling rate of 140 MSPS. The device includes an internal phase-locked loop (PLL) to generate pixel clocks from HSYNC and COAST signals, along with programmable gain, offset, and clamp controls. Designed for RGB graphics processing, it supports resolutions up to UXGA at 75 Hz. The component operates on a single 3.3 V power supply and provides three-state CMOS outputs.

Feature Summary

• Triple 8-bit ADC architecture with 140 MSPS maximum conversion rate
• Internal PLL generates pixel clock from HSYNC and COAST inputs
• Programmable analog bandwidth and input range (0.5 V to 1.0 V)
• Integrated sync processing including hot plug detect

Applications

• LCD monitors and projectors
• Plasma display panels
• RGB graphics processing systems
• Scan converters

Procurement Notes

Verify the specific suffix 'KS' against the manufacturer's current product portfolio, as availability may vary. Confirm RoHS compliance status through official documentation before integration. Check for end-of-life notices or obsolescence warnings directly from Analog Devices to ensure long-term supply chain stability.

Selection Notes

Select this component when designing interfaces for flat panel displays requiring triple-channel 8-bit digitization at 140 MHz. Ensure the system design accommodates the 3.3 V power requirement and utilizes the internal PLL for clock generation. Verify that the input signal levels fall within the specified 0.5 V to 1.0 V range for optimal performance.

Part Context

This part belongs to the AD988x family of analog front-end processors designed for video applications. It serves as a direct interface between analog RGB sources and digital display controllers. The '140' suffix indicates the maximum supported sampling frequency variant within the series.

Replacement Considerations

The AD9888KS-140 is a functional equivalent with higher speed capabilities (up to 170 MSPS). Verify pin compatibility and software configuration differences if substituting. Other variants in the AD9884 series may offer different package options or speed grades.