ADV7128KR80-REEL

ADCs/DACs - Special Purpose Overview

The ADV7128KR80-REEL is a high-speed, 10-bit video digital-to-analog converter (DAC) from Analog Devices. It operates at a maximum clock rate of 80 MHz and features TTL-compatible digital inputs and RS-343A/RS-170 compatible analog outputs. The device utilizes a single +5 V power supply and an external 1.23 V reference voltage. Key static performance metrics include ±1 LSB integral nonlinearity (INL) and differential nonlinearity (DNL), with guaranteed monotonicity. The output is a high-impedance current source capable of driving doubly terminated 75 Ω coaxial cables directly.

ADCs/DACs - Special Purpose Feature Summary

• 80 MHz pipelined operation for fast video refresh rates
• 10-bit resolution with guaranteed monotonicity and ±1 LSB INL/DNL
• TTL-compatible digital inputs and RS-343A/RS-170 compatible outputs
• +5 V CMOS monolithic construction with low power dissipation

ADCs/DACs - Special Purpose Applications

• High Definition Television (HDTV)
• High Resolution Color Graphics
• Digital Radio Modulation
• Direct Digital Synthesis (DDS) & I/O Modulation
• Wireless LAN and Wireless Local Loop

ADCs/DACs - Special Purpose Procurement Notes

Verify the 'R' package option corresponds to the 28-lead Small Outline IC (SOIC) format specified in the ordering guide. Confirm the 'K' accuracy grade matches the required ±1 LSB DNL and INL specifications. Ensure the '80' speed grade aligns with the 80 MHz maximum clock rate requirement. Check that the reel packaging designation is compatible with automated surface-mount assembly processes.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 80 MHz video DAC with 10-bit resolution is required. It is suitable for applications needing direct drive of 75 Ω transmission lines without additional buffering. Consider the 0°C to +70°C operating temperature range for environmental constraints. Ensure the system provides a stable 1.23 V reference and +5 V supply within specified tolerances for optimal performance.

ADCs/DACs - Special Purpose Part Context

The ADV7128KR80-REEL belongs to the ADV7128 family of video DACs. Other variants include the KR50 (50 MHz) and KR30 (30 MHz) speed grades. All share the same 28-pin SOIC package and functional architecture. The 'KR80' suffix specifically denotes the highest speed version with 80 MHz capability, while 'REEL' indicates tape-and-reel packaging for high-volume manufacturing.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.