AD5666BRUZ-1REEL7

Overview

The AD5666BRUZ-1REEL7 is a low-power, quad, 16-bit buffered voltage-output DAC from Analog Devices. It operates on a single 2.7 V to 5.5 V supply and features an on-chip 1.25 V reference with 5 ppm/°C temperature coefficient, yielding a 2.5 V full-scale output range. The device guarantees monotonicity by design and includes a power-on reset circuit for zero-scale or midscale initialization. It supports a versatile 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, with clock rates up to 50 MHz. Key features include rail-to-rail output swing, hardware LDAC for simultaneous updates, and asynchronous CLR functionality.

Feature Summary

• Quad 16-bit resolution with guaranteed monotonicity by design
• Integrated 1.25 V reference (5 ppm/°C) providing 2.5 V full-scale output
• Low power consumption: 400 nA at 5 V and 200 nA at 3 V in power-down mode
• Versatile 3-wire serial interface supporting up to 50 MHz clock rates

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Digital gain and offset adjustment circuits
• Programmable voltage and current sources

Procurement Notes

Verify the specific suffix 'REEL7' indicates tape-and-reel packaging when sourcing. Confirm the '-1' designation corresponds to the 1.25 V internal reference variant. Ensure compatibility with the required operating temperature range of -40°C to +105°C. Check for RoHS compliance status as per the latest manufacturer documentation.

Selection Notes

Select this component for applications requiring four independent 16-bit voltage outputs with high precision. The internal 1.25 V reference eliminates the need for external reference components, reducing board space. Consider the 14-lead TSSOP package constraints for thermal management. Verify that the 50 MHz serial interface speed meets the system's data throughput requirements.

Part Context

This part belongs to the AD5666 family of nanoDACs. The '-1' suffix specifies the internal reference voltage of 1.25 V, resulting in a 2.5 V output span. The 'BRUZ' indicates the industrial temperature grade (-40°C to +105°C) and TSSOP-14 package. The 'REEL7' suffix denotes the reel packaging format for automated assembly.

Replacement Considerations

The AD5666BRUZ-2 offers a 2.5 V internal reference for a 5 V output span. The AD5696 provides I2C interface instead of SPI. The AD5686 features a lower drift 2 ppm/°C reference. Verify pinout and register compatibility before substituting.