AD5680BCPZ-1500RL7

Overview

The AD5680BCPZ-1500RL7 is a single-channel, 18-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family by Analog Devices. It operates on a single 4.5 V to 5.5 V supply and features an 8-lead SOT-23 package. The device guarantees 12-bit accuracy despite its 18-bit resolution and includes a power-on reset circuit that initializes the output to zero scale or midscale. It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, supporting clock rates up to 30 MHz. The part consumes typically 1.6 mW at 5 V, making it suitable for portable applications.

Feature Summary

• 18-bit resolution with guaranteed 12-bit accuracy
• Single 4.5 V to 5.5 V power supply operation
• Power-on reset to zero scale or midscale
• Rail-to-rail output in an 8-lead SOT-23 package

Applications

• Closed-loop process control
• Low bandwidth data acquisition systems
• Portable battery-powered instruments
• Gain and offset adjustment
• Precision setpoint control

Procurement Notes

Verify the specific suffix 'BCPZ-1500RL7' against the manufacturer's ordering guide to confirm package type (LFCSP vs SOT-23) and power-on reset state (zero vs midscale). Ensure the required temperature range matches the B grade specification of -40°C to +105°C. Confirm availability through authorized distributors as stock levels vary.

Selection Notes

Select this component when high resolution (18-bit) is required in a compact footprint. Ensure the application can provide a stable reference voltage between 0.75 V and VDD. Verify that the serial interface timing meets the 30 MHz maximum SCLK requirement. Consider the 80 μs settling time for system bandwidth constraints.

Part Context

The AD5680 belongs to Analog Devices' nanoDAC family, designed for low-power, space-constrained applications. It uses an interpolator architecture to achieve 18-bit resolution from a 16-bit DAC core. Related devices include the AD5662 (16-bit) and other variants in the AD5680 series with different reset states or packages.

Replacement Considerations

The AD5662 offers 16-bit resolution in a similar package but lacks the 18-bit precision. Other AD5680 variants may differ in power-on reset behavior (AD5680-1 vs AD5680-2) or package style. Verify pin compatibility and electrical specifications before substitution.