AD5675RBCPZ-REEL7

Overview

The AD5675RBCPZ-REEL7 is an octal, 16-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It features a low-drift 2.5 V internal reference with a typical temperature coefficient of 2 ppm/°C and operates on a single 2.7 V to 5.5 V supply. The device incorporates a 400 kHz I²C-compatible serial interface and user-selectable gain of 1 or 2, enabling full-scale outputs of 2.5 V or 5 V. Packaged in a 20-lead LFCSP, it guarantees monotonic operation and includes power-on reset logic for zero or mid-scale initialization.

Feature Summary

• Octal 16-bit resolution with high relative accuracy (INL: ±3 LSB max at Grade B)
• Integrated 2.5 V reference with 2 ppm/°C typical drift
• User-selectable gain (×1 or ×2) via GAIN pin or bit
• 400 kHz I²C serial interface with 1.8 V logic compatibility

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 gain error specifications vary between grades. Confirm that the LFCSP package thermal characteristics meet your PCB design requirements. Ensure the I²C address configuration via A0/A1 pins aligns with your system bus topology.

Selection Notes

Select this component when multiple synchronized analog outputs are needed with high precision. The internal reference simplifies design by eliminating external components. Consider the gain setting; Gain = 2 requires VDD ≥ VREF + 1.5 V. Verify that the capacitive load stability limits (2 nF without load, 10 nF with 1 kΩ load) accommodate your downstream circuitry.

Part Context

This part belongs to the nanoDAC+ family, which integrates precision references and amplifiers into small packages. The AD5675R variant specifically offers 16-bit resolution with I²C connectivity, distinguishing it from the SPI-based AD5676R and the 12-bit AD5671R. The 'BCPZ' suffix indicates the LFCSP package and RoHS compliance.

Replacement Considerations

The AD5675BRUZ serves as a direct pin-compatible alternative in the TSSOP-20 package. For SPI interface requirements, the AD5676R provides equivalent functionality with a different communication protocol.