AD5673RBCPZ-2-RL7

Overview

The AD5673RBCPZ-2-RL7 is a 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 operates on a single 2.7 V to 5.5 V supply. The device uses a 400 kHz I²C-compatible serial interface and includes a user-selectable gain pin for 2.5 V or 5 V full-scale outputs. It incorporates a power-on reset circuit ensuring zero-scale or midscale startup, depending on the suffix, and offers a low-power shutdown mode consuming 2 µA typical.

Feature Summary

• 16 channels in a compact 28-lead, 4 mm × 4 mm LFCSP package
• 12-bit resolution with ±1 LSB maximum integral nonlinearity (INL)
• Internal 2.5 V reference with 2 ppm/°C typical temperature coefficient
• I²C interface with 400 kHz update rate and 1.8 V logic compatibility

Applications

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

Procurement Notes

Verify the specific ordering suffix '-2' against the manufacturer's official documentation to confirm the power-up state configuration. The datasheet indicates that suffixes determine whether outputs initialize at zero scale or midscale. Ensure the required initial output voltage matches the -2 variant specifications before procurement.

Selection Notes

Select this component when high channel density and low drift are required in a small footprint. The AD5673R provides 12-bit accuracy suitable for general-purpose applications. Choose the -2 suffix if the application requires outputs to power up at midscale (1.25 V for Gain = 1, 2.5 V for Gain = 2). Verify that the I²C address pins A0 and A1 can be configured to avoid bus conflicts.

Part Context

This part belongs to the nanoDAC+ family, which integrates precision references and buffers into a single chip. The AD5673R is the 12-bit counterpart to the 16-bit AD5677R. Both share identical pinouts and interfaces but differ in resolution and linearity specifications. The 'RL7' suffix denotes reel packaging for automated assembly.

Replacement Considerations

The AD5677RBCPZ-2-RL7 is a direct pin-compatible replacement offering 16-bit resolution. Other 16-channel DACs may require schematic changes due to different pinouts or interface protocols. Verify thermal resistance and power consumption differences when substituting.