DAC2902Y/250G4

Digital To Analog Converters Overview

The DAC2902Y/250G4 is a monolithic, dual-channel, 12-bit high-speed Digital-to-Analog Converter (DAC) from Texas Instruments. It operates with an update rate of up to 125 MSPS and supports single supplies of +3.3V or +5V. The device features a segmented architecture that minimizes output glitch energy to 2 pV-s while maintaining high dynamic performance, including an SFDR of 70 dB at fOUT = 20 MHz. It dissipates 310 mW in normal operation and includes an internal reference circuit. The component is housed in a TQFP-48 package and is specified over the extended industrial temperature range of –40°C to +85°C.

Digital To Analog Converters Feature Summary

• Dual-channel architecture optimized for baseband I/Q modulation applications
• High-speed parallel interface supporting clock rates up to 125 MSPS
• Segmented current-steering design for low glitch impulse and high linearity
• Integrated internal reference voltage circuitry

Digital To Analog Converters Applications

• Base Stations, WLL, and WLAN communications systems
• Direct IF signal generation
• Arbitrary Waveform Generators (ARB)
• Direct Digital Synthesis (DDS)
• Medical and test instrumentation equipment

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix /250G4 against official documentation to confirm tape and reel packaging quantities and RoHS compliance status. Ensure compatibility with standard handling procedures due to ESD sensitivity. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and production data currency before procurement.

Digital To Analog Converters Selection Notes

Select this component when dual-channel synchronization and high dynamic range are required for waveform synthesis. The device offers pin compatibility within the DAC290x family, allowing upgrades to 10-bit or 14-bit resolutions without PCB redesign. Consider the differential current output configuration for optimal noise rejection and distortion performance in RF applications.

Digital To Analog Converters Part Context

The DAC2902 belongs to the DAC290x family of high-speed digital-to-analog converters. It shares pinout compatibility with the 10-bit DAC2900 and the 14-bit DAC2904, facilitating scalable design transitions. The device utilizes an advanced CMOS process to achieve high throughput rates while maintaining low power consumption suitable for portable and dense electronic systems.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives include the DAC2900 and DAC2904 for resolution adjustments. The AD9765 is noted as a pin-compatible dual DAC alternative. Verify electrical specifications such as supply voltage ranges and output current capabilities when substituting.