ADV7120KPZ50

Digital To Analog Converters Overview

The ADV7120KPZ50 is a CMOS triple 8-bit video digital-to-analog converter (DAC) operating at an 80 MHz pipelined clock rate. It integrates three independent RGB DACs with TTL-compatible digital inputs and high-impedance analog current outputs. The device requires a single +5 V supply and an external 1.23 V reference voltage. Key electrical parameters include a maximum integral nonlinearity of ±1 LSB, differential nonlinearity of ±0.5 LSB, and a typical power dissipation of 400 mW at 80 MHz. It supports RS-343A and RS-170 video standards directly.

Digital To Analog Converters Feature Summary

• Triple 8-bit D/A converters with 80 MHz pipelined operation
• TTL compatible digital inputs for pixel data and control signals
• RS-343A/RS-170 compatible analog current outputs
• Monolithic +5 V CMOS construction ensuring low power dissipation

Digital To Analog Converters Applications

• High resolution color graphics systems
• CAE/CAD/CAM applications
• Image processing instrumentation
• Video signal reconstruction
• Direct Digital Synthesis (DDS) and I/Q modulation

Digital To Analog Converters Procurement Notes

Verify the specific speed grade suffix (e.g., 50 vs 80 MHz) against the required system clock frequency. Confirm package compatibility with the 48-lead TQFP footprint. Ensure the design includes the recommended external 1.23 V reference and proper decoupling capacitors as specified in the datasheet to maintain performance.

Digital To Analog Converters Selection Notes

Select this component when a high-speed, triple-channel video DAC is required with direct TTL interface capabilities. The 80 MHz version suits resolutions up to approximately 1024x1024 at 60 Hz. Consider the 50 MHz or 30 MHz variants if lower clock speeds are sufficient to reduce power consumption. Ensure the application can provide the necessary 1.23 V reference voltage.

Digital To Analog Converters Part Context

The ADV7120 series includes variants with different speed grades (30 MHz, 50 MHz, 80 MHz) and packages (DIP, PLCC, TQFP). The KPZ50 designation indicates the 50 MHz speed grade within the TQFP package family, although the provided datasheet highlights the 80 MHz model primarily. The series is designed for monolithic integration of RGB conversion and video control functions.

Digital To Analog Converters Replacement Considerations

Check for other speed grades within the ADV7120 family (ADV7120KN/KP/KST) if pinout compatibility is maintained. Verify if higher speed variants like the ADV7125 are needed for increased bandwidth. No direct cross-manufacturer substitutes are confirmed in the provided documentation.