AD5439YRU

Digital To Analog Converters Overview

The AD5439YRU is a dual-channel, 10-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features a high bandwidth of 10 MHz and supports an update rate of 2.47 MSPS. The device operates on a single supply voltage ranging from 2.5 V to 5.5 V and utilizes a double-buffered 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards. Key electrical parameters include a relative accuracy of ±0.5 LSB, differential nonlinearity of ±1 LSB, and a typical current consumption of 0.5 μA. It is housed in a 16-lead TSSOP package and functions within an extended temperature range of −40°C to +125°C.

Digital To Analog Converters Feature Summary

• Dual-channel 10-bit CMOS R-2R architecture with 10 MHz multiplying bandwidth
• Double-buffered 3-wire serial interface supporting daisy-chaining and data readback
• Extended industrial temperature range: −40°C to +125°C
• Low power consumption with 0.5 μA typical current at 2.5 V

Digital To Analog Converters Applications

• Portable battery-powered applications
• Waveform generators
• Programmable amplifiers and attenuators
• Digitally controlled calibration
• Ultrasound systems

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements between 2.5 V and 5.5 V. Confirm that the external reference voltage does not exceed the ±10 V input range. Check for availability through authorized distributors as stock levels vary.

Digital To Analog Converters Selection Notes

Select this component when a dual-channel solution with high-speed updating (2.47 MSPS) and low power consumption is required. The 10-bit resolution provides a balance between precision and speed. Ensure the application can accommodate the external reference input requirement, as the device does not contain an internal reference. Verify that the serial interface timing meets the microprocessor or DSP clock constraints.

Digital To Analog Converters Part Context

The AD5439 is part of the AD5429/AD5439/AD5449 family of high-bandwidth multiplying DACs. While sharing the same package and interface, it differs from the AD5429 (8-bit) and AD5449 (12-bit) primarily in resolution. All members of this series offer identical 10 MHz bandwidth and low power characteristics, allowing for pin-compatible design upgrades based on resolution needs.

Digital To Analog Converters Replacement Considerations

The AD5429 and AD5449 are pin-compatible alternatives within the same family, offering 8-bit and 12-bit resolutions respectively. Other dual-channel DACs may require interface adaptation or external reference circuitry changes.