AD5684ARUZ

Overview

The AD5684ARUZ is a quad, 12-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It features an SPI interface with clock rates up to 50 MHz and operates on a single 2.7 V to 5.5 V supply. The device provides high relative accuracy with a maximum integral nonlinearity of ±1 LSB and low power consumption of 1.8 mW at 3 V. It includes user-selectable gain settings of 1 or 2 via the GAIN pin, allowing full-scale outputs of 0 V to VREF or 0 V to 2 × VREF. Packaged in a 16-lead TSSOP, it supports per-channel power-down modes reducing current to 4 µA.

Feature Summary

• Quad 12-bit resolution with ±1 LSB maximum INL
• 50 MHz SPI serial interface with readback capability
• User-selectable gain of 1 or 2 for flexible output ranges
• Low power operation: 1.8 mW at 3 V; 4 µA in power-down mode

Applications

• Digital gain and offset adjustment
• Programmable attenuators
• Process control PLC I/O cards
• Industrial automation systems
• Data acquisition systems

Procurement Notes

Verify the specific ordering suffix ARUZ corresponds to the 16-lead TSSOP package configuration. Confirm that the component meets RoHS compliance requirements for the intended manufacturing process. Ensure the supply voltage range of 2.7 V to 5.5 V aligns with the system design specifications before procurement.

Selection Notes

Select this component when a quad-channel DAC with 12-bit precision and SPI connectivity is required. The external reference input allows flexibility in setting the output span. Consider the 16-lead TSSOP package if board space permits larger footprints compared to LFCSP options. Verify logic voltage compatibility, as the VLOGIC pin supports 1.8 V to 5.5 V levels.

Part Context

The AD5684ARUZ belongs to the nanoDAC+ series, which integrates high-precision DACs with onboard buffering. It shares architectural similarities with the AD5686 but offers 12-bit resolution instead of 16-bit. The device is designed for applications requiring multiple synchronized analog outputs with minimal external components.

Replacement Considerations

The AD5684ARUZ-RL7 serves as a reel-pack alternative to the tube-packed AD5684ARUZ. Both share identical electrical characteristics and pinouts. Other family members like the AD5694 offer I2C interfaces but differ in communication protocol.