ADV7120KP80

Digital To Analog Converters Overview

The ADV7120KP80 is a CMOS triple 8-bit video digital-to-analog converter (DAC) designed for high-resolution color graphics and video systems. Operating at a maximum clock rate of 80 MHz, it integrates three independent DACs for Red, Green, and Blue channels with TTL-compatible inputs. The device generates analog current outputs compatible with RS-343A and RS-170 standards without external buffering. It requires a single +5 V supply and an external 1.23 V reference voltage. Key static performance metrics include guaranteed monotonicity with ±0.5 LSB differential nonlinearity and ±1 LSB integral nonlinearity.

Digital To Analog Converters Feature Summary

• Triple 8-bit pipelined DAC architecture supporting 80 MHz operation
• TTL-compatible digital inputs for pixel data and control signals
• Integrated composite sync, blank, and reference white controls
• High-impedance analog current outputs driving doubly terminated 75 Ω loads

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 package option 'P' corresponds to the 44-pin Plastic Leaded Chip Carrier (PLCC) as specified in the ordering guide. Confirm the speed grade suffix '80' indicates the 80 MHz version. Ensure the component meets the industrial temperature range of 0°C to +70°C. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm pinout and electrical specifications.

Digital To Analog Converters Selection Notes

Select this model when an 80 MHz update rate is required for RGB video generation. The KP80 variant specifically denotes the PLCC package; choose KN80 for DIP or KST variants for TQFP if board space constraints differ. Ensure the system design provides a stable 1.23 V reference and adequate decoupling for the 5 V supply to maintain linearity and minimize glitch impulse.

Digital To Analog Converters Part Context

The ADV7120 series includes speed grades of 30 MHz, 50 MHz, and 80 MHz. The ADV7120KP80 is the highest-speed variant in the 80 MHz class. It shares the same functional block diagram and pin configuration across packages, differing only in physical form factor and maximum clock frequency limits.

Digital To Analog Converters Replacement Considerations

The ADV7120KSTZ30 is a documented alternative within the same family, offering 30 MHz operation in a 48-lead TQFP package. Verify that the reduced clock speed meets the target application's dot rate requirements before substitution.