AD5693RARMZ-RL7

Overview

The AD5693RARMZ-RL7 is a single-channel, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It features an I2C serial interface and operates on a single supply of 2.7 V to 5.5 V. The device utilizes an external reference input, allowing selectable output spans of VREF or 2 × VREF. Key performance metrics include a maximum integral nonlinearity (INL) of ±8 LSB for A-grade devices, a settling time of 5 µs, and a low power consumption of 350 µA in normal mode. It is housed in a 10-lead MSOP package.

Feature Summary

• 16-bit resolution with segmented string DAC architecture ensuring monotonicity by design
• I2C compatible serial interface with software-selectable gain (×1 or ×2)
• External reference input supporting VREF or 2 × VREF output spans
• Low power operation: 350 µA typical in normal mode, 2 µA maximum in power-down

Applications

• Process control systems
• Data acquisition systems
• Programmable voltage sources
• Digital gain and offset adjustment circuits

Procurement Notes

Verify the specific grade (A or B) required for INL specifications, as the datasheet defines ±8 LSB for A-grade and ±2 LSB for B-grade at Gain = 2. Confirm that the system design accommodates an external reference voltage source, as this variant lacks an internal reference. Ensure the PCB layout supports the 10-lead MSOP package dimensions and thermal requirements.

Selection Notes

Select the AD5693RARMZ-RL7 when an external reference is preferred or already available in the system. This model differs from the AD5693RACPZ variants which integrate an internal 2.5 V reference. Check the required accuracy; if tighter linearity than ±8 LSB is needed, consider the B-grade version or other family members. Verify that the I2C bus speed and address configuration meet system timing constraints.

Part Context

This component belongs to the AD5693R/AD5692R/AD5691R series, which are part of Analog Devices' nanoDAC+ family. The 'R' suffix indicates RoHS compliance and halogen-free construction. The 'ARMZ' designation specifies the 10-lead MSOP package and external reference configuration. The '-RL7' suffix typically denotes reel packaging for tape-and-reel handling.

Replacement Considerations

Direct pin-compatible replacements within the same package include other AD5693R variants with different reference configurations (e.g., AD5693RACPZ for internal reference). For higher precision, check AD5693R B-grade options. Cross-model substitution requires verifying reference type compatibility and INL specifications.