AD5676ACPZ-REEL7

Overview

The AD5676ACPZ-REEL7 is an octal, 16-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It operates on a single 2.7 V to 5.5 V supply and features a user-selectable gain of 1 or 2 via the GAIN pin or gain bit. The device includes a 50 MHz SPI interface with readback capability and supports 1.8 V logic compatibility. Key performance metrics include a maximum integral nonlinearity (INL) of ±3 LSB for Grade B and a typical power consumption of 1.26 mA in normal mode. It is housed in a 20-lead LFCSP package.

Feature Summary

• Octal 16-bit resolution with segmented string DAC architecture ensuring monotonicity by design.
• High relative accuracy with maximum INL of ±3 LSB (Grade B) and total unadjusted error of ±0.14% FSR.
• Versatile 50 MHz SPI serial peripheral interface with daisy-chain and readback support.
• User-selectable output span of VREF or 2 × VREF via hardware pin or software register.

Applications

• Optical transceivers
• Base station power amplifiers
• Process control PLC input/output cards
• Industrial automation systems
• Data acquisition systems

Procurement Notes

Verify the specific grade (A or B) required for your application, as INL and offset specifications differ between grades. Confirm that the LFCSP package thermal requirements are met within your system design. Ensure the external reference voltage source matches the AD5676's input range and current drive capabilities, as this component requires an external reference.

Selection Notes

Select the AD5676 when eight independent 16-bit channels are needed in a compact form factor. Choose Grade A if tighter linearity specifications (±1.8 LSB INL) are critical; otherwise, Grade B offers standard performance. Consider the LFCSP package for superior thermal dissipation compared to TSSOP. Verify that the system logic levels align with the 1.62 V to 5.5 V VLOGIC range.

Part Context

This part belongs to the nanoDAC+ family, designed for high-performance applications requiring multiple channels. The 'ACPZ' suffix indicates the Grade B specification level and the LFCSP-20 package type. The '-REEL7' suffix denotes the tape and reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

The AD5676ARUZ is a direct functional replacement offering the same octal 16-bit specifications but in a 20-lead TSSOP package instead of LFCSP. Designers must account for the pinout differences and thermal characteristics when switching between these packages.