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AD9833BRM-REEL7

IC DDS 25MHZ 10BIT 10MSOP

Part Number: AD9833BRM-REEL7

Manufacturer: Analog Devices Inc.

Category: Direct Digital Synthesis (DDS)

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: AD9833BRM-REEL7.pdf

Description: IC DDS 25MHZ 10BIT 10MSOP

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

AD9833BRM-REEL7 Low Power, 12.65 mW, 2.3 V to 5.5 V, Programmable Waveform Generator

A comprehensive technical overview of the AD9833BRM-REEL7, a low power, programmable waveform generator capable of producing sine, triangular, and square wave outputs from Analog Devices. Covers device function, core features, electrical specifications, 10-lead MSOP package, pin configuration, typical applications, and replacement selection guidance.

Analog Devices 10-Lead MSOP (RM-10) 2.3V to 5.5V

Device Classification Programmable Waveform Generator

Part Number: AD9833BRM-REEL7

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +105°C

PRODUCT OVERVIEW

What Is the AD9833BRM-REEL7?

AD9833BRM-REEL7 is a low power, programmable waveform generator from Analog Devices capable of producing sine, triangular, and square wave outputs. The device is designed for various types of sensing, actuation, and time domain reflectometry (TDR) applications where waveform generation is required.[reference:0]

The AD9833BRM-REEL7 features a 28-bit frequency register, allowing output frequency resolution of 0.1 Hz with a 25 MHz reference clock, or 0.004 Hz with a 1 MHz clock. The output frequency and phase are software programmable via a 3-wire SPI serial interface operating at clock rates up to 40 MHz, compatible with DSP and microcontroller standards.[reference:1]

Operating from a 2.3 V to 5.5 V power supply with only 12.65 mW power consumption at 3 V, the device includes a power-down function (SLEEP) that allows unused sections to be powered down to minimize current consumption. The AD9833BRM-REEL7 is available in a 10-lead MSOP package and is AEC-Q100 qualified for automotive applications.[reference:2][reference:3]

Programmable Waveform Generation Sine, triangular, and square wave outputs with software programmable frequency and phase.

Ultra-Low Power 12.65 mW power consumption at 3 V with power-down option for minimal current consumption.

High Resolution & Flexibility 28-bit frequency resolution (0.1 Hz at 25 MHz) and 3-wire SPI interface up to 40 MHz.

DEVICE HIGHLIGHTS

Key Features and Benefits of AD9833BRM-REEL7

Three Programmable Waveform Outputs

Capable of generating sine, triangular, and square wave outputs, providing flexibility for a wide range of sensing, actuation, and test applications.[reference:4]

Ultra-Low Power Consumption

12.65 mW power consumption at 3 V with power-down function (SLEEP) allowing unused sections to be powered down to minimize current consumption.[reference:5][reference:6]

28-Bit Frequency Resolution

28-bit frequency registers provide 0.1 Hz resolution at 25 MHz clock rate, enabling precise frequency tuning for demanding applications.[reference:7]

3-Wire SPI Interface

Serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards, simplifying system integration.[reference:8][reference:9]

Wide Supply Voltage Range

Operates from 2.3 V to 5.5 V single supply with on-board 2.5 V regulator (when VDD exceeds 2.7 V), supporting both 3 V and 5 V systems.[reference:10][reference:11]

AEC-Q100 Qualified & Extended Temperature

AEC-Q100 qualified for automotive applications with an extended temperature range of –40°C to +105°C.[reference:12]

REFERENCE DATA

Technical Specifications for AD9833BRM-REEL7

Part Number	AD9833BRM-REEL7	Manufacturer	Analog Devices
Device Type	Programmable Waveform Generator	Output Waveforms	Sine, Triangular, Square
Supply Voltage (VDD)	2.3 V to 5.5 V	Power Consumption	12.65 mW @ 3 V
Output Frequency Range	0 MHz to 12.5 MHz	Frequency Resolution	28 Bits (0.1 Hz @ 25 MHz)
Update Rate	25 MSPS	DAC Resolution	10 Bits
VOUT Maximum	0.65 V	VOUT Minimum	38 mV
Integral Nonlinearity (INL)	±1.0 LSB	Differential Nonlinearity (DNL)	±0.5 LSB
Signal-to-Noise Ratio (SNR)	60 dB Typ	Total Harmonic Distortion (THD)	–60 dBc Typ
Spurious-Free Dynamic Range (SFDR)	–55 dBc Typ	Wake-Up Time	1 ms
Serial Interface	3-Wire SPI (40 MHz Max)	Supply Current (IDD)	4.5 mA to 5.5 mA
Low Power Sleep Mode Current	0.5 mA	Package	10-Lead MSOP (RM-10)
Package Body Size	3.00 mm × 4.90 mm	Mounting Type	Surface Mount
Operating Temperature (B Version)	-40°C to +105°C	Storage Temperature Range	-65°C to +150°C
Maximum Junction Temperature	150°C	Thermal Resistance θJA	206°C/W
ESD (HBM)	±2000V	Qualification	AEC-Q100 Qualified
Packaging	Tape & Reel	RoHS	Yes

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for AD9833BRM-REEL7

Frequency & Phase Programming

The AD9833BRM-REEL7 is configured via a 3-wire SPI serial interface:

Frequency Registers: 28-bit wide FREQ0 and FREQ1 registers for programmable output frequency
Phase Registers: 12-bit wide PHASE0 and PHASE1 registers for programmable phase offset
Output Frequency Formula: f_OUT = (FREQREG / 2²⁸) × f_MCLK
Control Register: Configures output waveform type, power-down modes, and register selection
Serial Interface: Operates at clock rates up to 40 MHz with FSYNC, SCLK, and SDATA pins[reference:13]

PCB and Power-Supply Guidance

Waveform generator performance depends on layout, bypassing, and power supply quality:

Power Supply Decoupling: Connect 0.1 µF and 10 µF decoupling capacitors between VDD and AGND[reference:14]
CAP/2.5V Capacitor: Connect 100 nF decoupling capacitor from CAP/2.5V to DGND when VDD > 2.7 V; tie CAP/2.5V directly to VDD when VDD ≤ 2.7 V[reference:15]
COMP Pin: Used for decoupling the DAC bias voltage[reference:16]
Grounding: Use separate analog and digital ground planes for optimal performance
MCLK Input: The master clock determines output frequency accuracy and phase noise; use a low-jitter clock source[reference:17]
Verify the recommended PCB footprint from the official datasheet before production

10-LEAD MSOP (RM-10)

Pin Configuration Reference for AD9833BRM-REEL7

AD9833

MSOP (RM-10) TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The RM-10 package has 10 pins with 0.50mm pitch.

1 COMP DAC Bias Pin - Decoupling for DAC bias voltage[reference:18]

2 VDD Positive Power Supply - 2.3V to 5.5V[reference:19]

3 CAP/2.5V 2.5V Regulator Output - Connect 100nF to DGND (VDD > 2.7V) or tie to VDD (VDD ≤ 2.7V)[reference:20]

4 DGND Digital Ground[reference:21]

5 MCLK Master Clock Input - Determines output frequency accuracy and phase noise[reference:22]

6 SDATA Serial Data Input - 16-bit data-word applied to this input[reference:23]

7 SCLK Serial Clock Input - Data clocked in on each falling edge[reference:24]

8 FSYNC Active Low Control Input - Frame synchronization signal[reference:25]

9 AGND Analog Ground[reference:26]

10 VOUT Voltage Output - Sine, triangular, or square wave output[reference:27]

APPLICATION AREAS

Typical Applications for AD9833BRM-REEL7

Frequency Stimulus / Waveform Generation

Programmable waveform generation for test and measurement equipment.[reference:28]

Liquid and Gas Flow Measurement

Excitation signals for flow sensing applications.[reference:29]

Proximity, Motion, and Defect Detection

Sensory applications requiring precise waveform generation.[reference:30]

Medical Equipment

Waveform generation for diagnostic and therapeutic medical devices.[reference:31]

Sweep / Clock Generators

Frequency sweep and clock generation applications.[reference:32]

Time Domain Reflectometry (TDR)

Pulse generation for cable and transmission line testing.[reference:33]

REPLACEMENT GUIDANCE

Selecting an Alternative for AD9833BRM-REEL7

A replacement for the AD9833BRM-REEL7 should not be selected only by product category. The electrical characteristics, package, and pin configuration must be evaluated against the actual circuit requirements.

Output waveform types (Sine, Triangular, Square)

Supply voltage range (2.3V–5.5V)

Output frequency range (0–12.5 MHz)

Frequency resolution (28-bit)

Interface (3-wire SPI, up to 40 MHz)

Package (10-lead MSOP)

Temperature range (–40°C to +105°C)

Power consumption (12.65 mW @ 3V)

Family alternatives: AD9833BRMZ (standard packaging, same specifications), AD9833WBRMZ-REEL (AEC-Q100 qualified automotive version, same specifications), AD9834 (higher frequency, 75 MHz with built-in comparator), AD9837 (lower power, 8 mW with 2.3V to 5.5V). For higher output frequency, consider the AD9838 (16 MHz) or AD9850 (125 MHz DDS). Select based on frequency range, power consumption, package, and automotive qualification needs.

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MANUFACTURER INFORMATION

Analog Devices

The AD9833 (AD9833BRM-REEL7) belongs to the DDS (Direct Digital Synthesis) waveform generator portfolio of Analog Devices. The device is designed for low power, programmable waveform generation in sensing, actuation, test, and medical applications.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: AD9833BRM-REEL7

Manufacturer: Analog Devices Inc.

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Series: -

Package/Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Packaging: Tape & Reel (TR)

Product Status: Obsolete

Resolution (Bits): 10 b

Master fclk: 25 MHz

Tuning Word Width (Bits): 28 b

Voltage - Supply: 2.3V ~ 5.5V

Operating Temperature: -40°C ~ 105°C

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 10-MSOP

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Part Number: AD9833BRM-REEL7

Manufacturer: Analog Devices Inc.

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Category: Direct Digital Synthesis (DDS)

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