AD5674BCPZ-1-RL7

Overview

The AD5674BCPZ-1-RL7 is a low-power, 16-channel, 12-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It features an internal 2.5 V reference with a typical temperature coefficient of 2 ppm/°C and a user-selectable gain pin for full-scale outputs of 2.5 V or 5 V. Operating on a single 2.7 V to 5.5 V supply, the device includes a power-on reset circuit ensuring zero-scale or midscale startup. It utilizes a 50 MHz SPI interface with readback or daisy-chain capabilities and is housed in a 28-lead, 4 mm × 4 mm LFCSP package.

Feature Summary

• 16 channels with high relative accuracy: Integral Nonlinearity (INL) is ±1 LSB maximum at 12 bits.
• Integrated 2.5 V voltage reference with low drift (2 ppm/°C typical).
• User-selectable gain via GAIN pin allows full-scale output ranges of 0 V to 2.5 V or 0 V to 5 V.
• Power-down mode reduces current consumption to 2 µA typical.

Applications

• Optical transceivers
• Base station power amplifiers
• Process control programmable logic controller (PLC) input/output cards
• Industrial automation systems
• Data acquisition systems

Procurement Notes

Verify the specific suffix '-1' against the manufacturer's ordering guide to confirm the exact output power-up state configuration. The datasheet indicates that different suffixes determine whether outputs power up to zero-scale or midscale. Ensure the selected variant matches the system's required initial DAC state upon power application.

Selection Notes

Select this component when high channel density is required within a compact 4 mm × 4 mm footprint. It is suitable for applications needing 12-bit resolution with integrated precision references. Verify that the load capacitance does not exceed 2 nF without external series resistance to maintain stability, as the device supports up to 10 nF only with a 1 kΩ series resistor.

Part Context

This part belongs to the nanoDAC+ family, which integrates buffered voltage outputs and internal references. The AD5674 represents the 12-bit resolution variant within the 16-channel SPI interface group, sharing the same physical package and core architecture as the 16-bit AD5679.

Replacement Considerations

The AD5674RBCPZ-1-RL7 serves as a direct functional replacement, differing primarily by the inclusion of an external reference buffer. For lower channel counts, the AD5672RBCPZ-1-RL7 provides an 8-channel alternative with identical specifications.