AD9832BRU

Overview

The AD9832BRU is a direct digital synthesizer (DDS) waveform generator manufactured by Analog Devices Inc. It integrates a numerically controlled oscillator, a sine look-up table, and a 10-bit digital-to-analog converter on a single CMOS chip. The device supports clock rates up to 25 MHz and offers frequency control accuracy of one part in 4 billion. It features serial loading capabilities for modulation and includes a power-down option that reduces consumption to 5 mW at 5 V or 3 mW at 3 V. The component operates within an industrial temperature range of −40°C to +85°C and is housed in a 16-lead TSSOP package.

Feature Summary

• Integrates a numerically controlled oscillator with a phase accumulator, sine look-up table, and 10-bit DAC on a single CMOS chip.
• Supports frequency and phase modulation through serial interface register loading.
• Includes a programmable power-down mode to minimize energy consumption during idle periods.
• Operates with a master clock frequency up to 25 MHz for high-speed waveform generation.

Applications

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

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature grade. Ensure the ordering information matches the required industrial specifications. Confirm availability through authorized distributors as supply status may vary. Cross-reference the datasheet revision to ensure compatibility with current design requirements.

Selection Notes

Select this component when a low-power, digitally programmable waveform generator is required. The 10-bit resolution and 25 MHz clock speed suit applications needing precise frequency synthesis. Consider the serial interface requirements for microcontroller integration. Evaluate the power-down feature for battery-operated systems where standby current is critical.

Part Context

The AD9832 belongs to Analog Devices' family of direct digital synthesis products. It serves as a compact solution for generating precise analog waveforms from digital inputs. The device simplifies system design by integrating essential DDS components, reducing the need for external discrete elements compared to older architectures.

Replacement Considerations

The AD9833 is a similar low-power waveform generator offering sine, triangular, and square wave outputs. Verify pin compatibility and interface differences before substitution. Check if the target application requires the specific modulation capabilities or clock speeds provided by the AD9832.