AD9838
PRODUCTION11 mW Power, 2.3 V to 5.5 V, Complete DDS
- Part Models
- 4
- 1ku List Price
- Starting From $2.59
Part Details
- 2.3 V to 5.5 V power supply
- MCLK speed: 16 MHz (B grade), 5 MHz (A grade)
- Output frequency up to 8 MHz
- Sinusoidal and Triangular Outputs
- On-board comparator
- 3-wire SPI interface
- Extended temperature range: −40°C to +125°C
- See datasheet for additional features
The AD9838 is a low power DDS device capable of producing high performance sine and triangular outputs. It also has an on-board comparator that allows a square wave to be produced for clock generation. Consuming only 11 mW of power at 2.3 V the AD9838 is an ideal candidate for power-sensitive applications.
Capability for phase modulation and frequency modulation is provided. The frequency registers are 28 bits; with a 16 MHz clock rate, resolution of 0.06 Hz can be achieved; with a 5 MHz clock rate, the AD9838 can be tuned to 0.02 Hz resolution. Frequency and phase modulation are configured by loading registers through the serial interface and toggling the registers using software or the FSELECT pin and PSELECT pin, respectively.
The AD9838 is written to via a 3-wire serial interface. This serial interface operates at clock rates up to 40 MHz and is compatible with DSP and microcontroller standards.
The device operates with a power supply from 2.3 V to 5.5 V. The analog and digital sections are independent and can be run from different power supplies; for example, AVDD can equal 5 V with DVDD equal to 3 V.
The AD9838 has a power-down pin (SLEEP) that allows external control of the power-down mode. Sections of the device that are not being used can be powered down to minimize current consumption. For example, the DAC can be powered down when a clock output is being generated.
The AD9838 is available in a 20-lead LFCSP_WQ package.
APPLICATIONS
- Frequency stimulus/waveform generation
- Frequency phase tuning and modulation
- Low power RF/communications systems
- Liquid and gas flow measurement
- Sensory applications: proximity, motion, and defect detection
- Test and medical equipment
Documentation
Data Sheet 1
User Guide 1
Application Note 3
Device Drivers 3
Analog Dialogue 1
Webcast 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9838ACPZ-RL | 20-Lead LFCSP (4mm x 4mm w/ EP) | ||
| AD9838ACPZ-RL7 | 20-Lead LFCSP (4mm x 4mm w/ EP) | ||
| AD9838BCPZ-RL | 20-Lead LFCSP (4mm x 4mm w/ EP) | ||
| AD9838BCPZ-RL7 | 20-Lead LFCSP (4mm x 4mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 5, 2022 - 21_0271 Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages |
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| AD9838ACPZ-RL | PRODUCTION | |
| AD9838ACPZ-RL7 | PRODUCTION | |
| AD9838BCPZ-RL | PRODUCTION | |
| AD9838BCPZ-RL7 | PRODUCTION | |
|
Oct 18, 2016 - 16_0036 Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select LFCSP Products |
||
| AD9838ACPZ-RL | PRODUCTION | |
| AD9838ACPZ-RL7 | PRODUCTION | |
| AD9838BCPZ-RL | PRODUCTION | |
| AD9838BCPZ-RL7 | PRODUCTION | |
|
Aug 6, 2014 - 13_0230 Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China |
||
| AD9838ACPZ-RL | PRODUCTION | |
| AD9838ACPZ-RL7 | PRODUCTION | |
| AD9838BCPZ-RL | PRODUCTION | |
| AD9838BCPZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
FPGA/HDL 2
Device Drivers 3
Evaluation Software 0
Evaluation Kits
AD9838 Evaluation Board