AD5680BCPZ-2500RL7

Overview

The AD5680BCPZ-2500RL7 is a single-channel, buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It features 18-bit resolution and guaranteed 12-bit accuracy within an 8-lead SOT-23 package. Operating on a single 4.5 V to 5.5 V supply, it consumes typically 1.6 mW at 5 V. The device includes a power-on reset circuit that initializes the output to zero scale or midscale. It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 30 MHz.

Feature Summary

• 18-bit monotonic resolution with guaranteed 12-bit accuracy
• Tiny 8-lead SOT-23 package for space-constrained designs
• Power-on reset to zero scale or midscale output
• Rail-to-rail output operation with external reference input

Applications

• Closed-loop process control
• Low bandwidth data acquisition systems
• Portable battery-powered instruments
• Gain and offset adjustment circuits
• Precision setpoint control

Procurement Notes

Verify the specific suffix indicates the desired power-on reset state: -1 for zero scale and -2 for midscale. Confirm the B grade designation corresponds to the industrial temperature range of −40°C to +105°C. Ensure the RL7 suffix matches the required tape and reel packaging format for automated assembly processes.

Selection Notes

Select this component when high resolution is required in a minimal footprint. An external reference voltage source is mandatory to define the DAC output range, as no internal reference is integrated. The rail-to-rail output amplifier allows full supply swing utilization. Verify that the system bandwidth requirements align with the 10 kHz interpolation frequency for optimal performance.

Part Context

The AD5680 belongs to Analog Devices' nanoDAC series, designed to simplify precision analog design by integrating the DAC and output buffer into a small package. This specific part number represents the B-grade version packaged in SOT-23. It serves as a high-resolution alternative to lower-bit DACs while maintaining low power consumption suitable for portable applications.

Replacement Considerations

The AD5662 is a related 16-bit device in the same SOT-23 package. However, it lacks the 18-bit resolution of the AD5680. Designers requiring similar form factors but different resolution or accuracy specifications should evaluate the broader nanoDAC portfolio for direct pin-compatible alternatives.