AD9835BRUZ-REEL7

Overview

The AD9835BRUZ-REEL7 is a Direct Digital Synthesis (DDS) waveform generator manufactured by Analog Devices Inc. It integrates a phase accumulator, COS lookup table, and a 10-bit digital-to-analog converter on a single CMOS chip. The device supports clock rates up to 50 MHz with a frequency accuracy of one part in 4 billion. It operates on a 5 V power supply within a voltage range of 4.75 V to 5.25 V. The component features serial loading capabilities for modulation and includes a power-down option that reduces consumption to 1.75 mW. It is housed in a 16-lead TSSOP package and functions across an industrial temperature range of −40°C to +85°C.

Feature Summary

• Integrates a numerically controlled oscillator with a 32-bit phase accumulator and a cosine lookup table for precise signal generation.
• Includes a high-impedance current source 10-bit DAC with adjustable full-scale output via an external resistor.
• Supports both phase modulation and frequency modulation through direct register loading via a serial interface.
• Features a dedicated power-down bit to minimize energy consumption when the device is not in active use.

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 manufacturer marking matches Analog Devices Inc. and confirm the part number suffix REEL7 indicates tape and reel packaging. Ensure the B version grade corresponds to the required industrial temperature range of −40°C to +85°C. Check datasheet specifications for absolute maximum ratings to prevent damage during handling and soldering.

Selection Notes

Select this component when a single-chip solution for DDS is required with a 50 MHz update rate. It is suitable for designs needing integrated sine wave generation without external DACs. Consider the 16-lead TSSOP package constraints and the need for a 5 V supply. Evaluate if the 10-bit resolution and 50 dB SNR meet the specific system noise requirements.

Part Context

This part belongs to the AD9835 series of direct digital synthesizers from Analog Devices. It is designed as a complete NCO solution combining digital synthesis and analog conversion. The BRUZ-REEL7 designation specifies the industrial temperature grade, surface mount TSSOP-16 package, and reel packaging format for automated assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Analog Devices resources for cross-reference information or compatible DDS products within the same family.