AD9838BCPZ-RL7

Overview

The AD9838BCPZ-RL7 is a low-power Direct Digital Synthesis (DDS) device manufactured by Analog Devices Inc. It operates on a single power supply ranging from 2.3 V to 5.5 V and consumes only 11 mW at 2.3 V. The component features a 10-bit DAC, a 28-bit phase accumulator, and supports sinusoidal and triangular waveform outputs up to 8 MHz. It utilizes a 3-wire serial interface compatible with DSP standards and includes an onboard comparator for square wave generation. The B-grade variant supports a master clock speed of 16 MHz, providing a frequency resolution of 0.06 Hz. It is housed in a 20-lead LFCSP package and functions within an extended temperature range of −40°C to +125°C.

Feature Summary

• Integrated direct digital synthesis architecture with 28-bit phase accumulation capability
• Onboard comparator enabling square wave output for clock generation applications
• Independent analog and digital power supply sections for flexible system design
• Low power consumption suitable for battery-operated and portable equipment

Applications

• Frequency stimulus and waveform generation systems
• Frequency and phase tuning or modulation circuits
• Low power RF and communications systems
• Liquid and gas flow measurement instrumentation
• Sensory applications including proximity, motion, and defect detection

Procurement Notes

Verify the specific grade suffix to confirm the master clock speed specification. The B-grade designation indicates support for a 16 MHz clock rate, whereas other grades may operate at lower frequencies. Ensure the ordering part number matches the required performance parameters for the target application environment.

Selection Notes

Select this component when a complete DDS solution with low power consumption is required. The B-grade version is appropriate for applications demanding higher clock speeds up to 16 MHz. Consider the separate AVDD and DVDD pins if independent power domains are necessary for noise isolation or voltage level compatibility.

Part Context

This component belongs to the AD9838 series of Direct Digital Synthesis devices. It shares architectural similarities with other members of the family but differs in maximum clock speed based on the grade suffix. The B-grade variant specifically targets applications requiring higher update rates compared to the A-grade counterpart.

Replacement Considerations

Public confirmed substitute part numbers: AD9838ACPZ-RL7.