AD5445YRUZ

Digital To Analog Converters Overview

The AD5445YRUZ is a 12-bit current output digital-to-analog converter (DAC) from Analog Devices. It operates on a single 2.5 V to 5.5 V supply and features a fast parallel interface with a 17 ns write cycle and an update rate of 20.4 MSPS. The device provides a 10 MHz multiplying bandwidth and includes an integrated feedback resistor for voltage output applications. Key static performance metrics include ±1 LSB integral nonlinearity (INL) and –1/+2 LSB differential nonlinearity (DNL). It supports data readback, power-on reset with brownout detection, and functions in the extended industrial temperature range of –40°C to +125°C.

Digital To Analog Converters Feature Summary

• 12-bit resolution with guaranteed monotonicity and ±1 LSB INL
• High-speed parallel interface supporting 20.4 MSPS update rates
• 10 MHz reference multiplying bandwidth for 4-quadrant multiplication
• Integrated feedback resistor (RFB) simplifies external amplifier design

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the 'Y' suffix indicates the extended industrial temperature range (-40°C to +125°C). Confirm the package type matches the required footprint, as the AD5445 is available in both 20-lead TSSOP and LFCSP packages. Ensure the specific ordering code corresponds to the tube or reel packaging format needed for assembly.

Digital To Analog Converters Selection Notes

Select this component when a high-bandwidth, current-output DAC with a parallel interface is required. The AD5445 serves as a direct upgrade to the legacy AD7545, offering improved multiplying bandwidth. Consider the external reference input range of ±10 V and the need for an external I-to-V amplifier if voltage output is desired.

Digital To Analog Converters Part Context

The AD5445 is part of the AD5424/AD5433/AD5445 family of CMOS multiplying DACs. These devices are designed to replace older bipolar counterparts like the AD7524/AD7533/AD7545 while providing superior performance in terms of speed and power consumption. The family shares pin compatibility across different resolutions within specific package types.

Digital To Analog Converters Replacement Considerations

The AD5445 is explicitly documented as an upgrade to the AD7545. Designers replacing legacy parts should verify that the new parallel interface timing requirements are met by the host system.