AD5681RBCPZ-RL7

Overview

The AD5681RBCPZ-RL7 is a single-channel, 12-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It features an internal 2.5 V reference with a typical drift of 2 ppm/°C and operates on a single 2.7 V to 5.5 V supply. The device supports selectable output spans of 0 V to VREF or 0 V to 2 × VREF. It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 50 MHz. Key performance metrics include ±1 LSB maximum INL, ±1 LSB DNL, and a low glitch impulse of 0.1 nV-sec. The component is housed in an ultrasmall 2 mm × 2 mm, 8-lead LFCSP package.

Feature Summary

• 12-bit resolution with ±1 LSB maximum relative accuracy (INL) and guaranteed monotonicity.
• Integrated 2.5 V reference with 2 ppm/°C typical temperature coefficient.
• Selectable output span: 0 V to VREF or 0 V to 2 × VREF.
• 3-wire serial interface operating at clock rates up to 50 MHz.

Applications

• Process controls
• Data acquisition systems
• Digital gain and offset adjustment
• Programmable voltage sources

Procurement Notes

Verify the specific suffix 'BCPZ-RL7' against the manufacturer's ordering guide to confirm pin configuration options such as LDAC, VLOGIC, or RESET availability. Ensure the reel packaging quantity matches project requirements. Confirm RoHS compliance status through official documentation before procurement.

Selection Notes

Select this component for applications requiring high relative accuracy in a compact footprint. The internal reference eliminates external components for standard 2.5 V references. Consider the selectable gain feature if a wider output swing is needed. Verify logic voltage compatibility (1.62 V to 5.5 V) with the host microcontroller.

Part Context

This part belongs to the AD5683R/AD5682R/AD5681R series, which shares identical pinouts and functional blocks but differs in resolution (16-bit, 14-bit, and 12-bit respectively). The AD5681R specifically targets cost-sensitive applications where 12-bit precision is sufficient. The 'BCPZ' designation indicates the 8-lead LFCSP package with specific pin configurations.

Replacement Considerations

Direct replacements within the same family include AD5682R (14-bit) and AD5683R (16-bit) for higher resolution needs, provided the application can accommodate the minor differences in power consumption and specifications. External reference variants like AD5683 do not share the same internal reference architecture.