ADV7127JRU240

Digital To Analog Converters Overview

The ADV7127JRU240 is a high-speed, monolithic CMOS digital-to-analog converter (DAC) fabricated by Analog Devices. It features a 10-bit resolution and supports throughput rates up to 240 MSPS. The device operates on a single 5 V or 3.3 V supply and includes an internal voltage reference circuit. It provides complementary analog current outputs capable of driving doubly terminated 75 Ω loads directly. The component utilizes a TTL-compatible parallel interface for data input and is housed in a 24-lead thin shrink small outline package (TSSOP).

Digital To Analog Converters Feature Summary

• 240 MSPS maximum throughput rate with 10-bit resolution.
• Integrated internal voltage reference and low power standby/power-down modes.
• Complementary current outputs compatible with RS-343A and RS-170 video standards.
• TTL-compatible digital inputs and clock interface.

Digital To Analog Converters Applications

• Digital video systems supporting resolutions up to 1600 × 1200 at 100 Hz.
• High-resolution color graphics displays.
• Video signal reconstruction and direct digital synthesis (DDS).
• Wireless local area networks (LANs) and digital radio modulation.

Digital To Analog Converters Procurement Notes

Verify the specific suffix '240' against the manufacturer's ordering guide to confirm the grade and packaging configuration. Ensure that the selected variant matches the required temperature range and performance specifications for the intended application environment.

Digital To Analog Converters Selection Notes

Select this component when a 10-bit resolution and high-speed conversion are required for video or RF applications. Consider the 240 MHz speed grade if operating near the maximum clock frequency. Verify power supply requirements, as the device supports both 5 V and 3.3 V logic levels, ensuring compatibility with the system's digital interface.

Digital To Analog Converters Part Context

The ADV7127JRU240 belongs to the ADV7127 series of high-speed video DACs from Analog Devices. This series is designed for applications requiring precise analog output generation from digital video sources. The JRU240 designation indicates a specific performance grade within the family, optimized for high-frequency operation.

Digital To Analog Converters Replacement Considerations

Consult the official datasheet for cross-reference information. Direct replacements must match the 10-bit resolution, 240 MSPS speed, TSSOP-24 package, and pinout compatibility to ensure functional equivalence without redesigning the PCB layout.

Digital To Analog Converters FAQ

What is the function of the RSET pin?

The RSET pin controls the magnitude of the full-scale video signal. Connecting a resistor between this pin and ground determines the output current amplitude according to the formula IOUT(mA) = 7968 * VREF(V) / RSET(Ω).

How does the PSAVE pin operate?

The PSAVE pin is a power save control input. When driven low, the device enters standby mode, reducing power consumption while keeping the internal voltage reference circuit active.

Can the ADV7127 drive a 75 Ω load directly?

Yes, the differential current outputs (IOUT and IOUT) are capable of directly driving a doubly terminated 75 Ω coaxial cable, generating standard RS-343A video levels.