Model: AD9238
Brand: Analog Devices
Category: ADCs / Analog-to-Digital Converters
๐ Download Datasheet
๐ Detailed Description
The AD9238 is a dual-channel ADC that offers a highly efficient and low-power solution for applications requiring fast and accurate digital conversion. Operating with a single 3 V supply, it provides excellent performance with 12-bit resolution, achieving a signal-to-noise ratio (SNR) of 70 dB and a spurious-free dynamic range (SFDR) of 80.5 dBc at a data rate of 65 MSPS. The dual integrated sample-and-hold amplifiers (SHAs) allow for high-precision sampling, ensuring accuracy even with fast input signals.
With a 500 MHz 3 dB bandwidth on the differential input and a flexible analog input range of 1 V p-p to 2 V p-p, the AD9238 can accommodate a wide range of signal types. The device’s low power consumption of just 300 mW per channel at 65 MSPS makes it well-suited for portable and battery-powered systems.
A duty cycle stabilizer ensures stable performance despite variations in the clock duty cycle, while the option to configure the output data format as either offset binary or twos complement adds flexibility to system integration. The AD9238 is equipped with an output data multiplexer, allowing multiple output configurations to suit different application requirements.
๐ Technical Specifications
| Feature | Description |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 20 MSPS, 40 MSPS, 65 MSPS |
| Power Consumption | 300 mW/channel at 65 MSPS |
| Input Bandwidth | 500 MHz (3 dB bandwidth) |
| Signal-to-Noise Ratio (SNR) | 70 dB (to Nyquist, at 65 MSPS) |
| Spurious-Free Dynamic Range | 80.5 dBc (to Nyquist, at 65 MSPS) |
| Analog Input Range | 1 V p-p to 2 V p-p |
| Clock Inputs | Dual single-ended |
| Output Data Format | Offset binary or twos complement |
| Duty Cycle Stabilizer | Yes, for stable performance |
| Output Multiplexer | Yes, for flexible output configurations |
| Supply Voltage | 2.7 V to 3.6 V |
| Temperature Range | -40ยฐC to +85ยฐC |
| Package | 48-lead LQFP |
๐ฏ Key Applications
-
Ultrasound Equipment
-
Direct Conversion or IF Sampling Receivers
-
WB-CDMA, CDMA2000, WiMAX
-
Battery-Powered Instruments
-
Handheld Scopemeters
-
Low-Cost, Digital Oscilloscopes
๐ Product Highlights
-
Low Power Consumption: Only 300 mW per channel at 65 MSPS, making it ideal for portable, battery-operated systems.
-
High Performance: Provides 12-bit resolution with an SNR of 70 dB and an SFDR of 80.5 dBc, ensuring high-quality data conversion.
-
Wide Bandwidth: The differential input has a 500 MHz 3 dB bandwidth, supporting high-frequency signals.
-
Duty Cycle Stabilizer: Compensates for clock duty cycle variations, maintaining stable performance.
-
Flexible Data Output: Supports both offset binary and twos complement data formats with an output data multiplexer.
-
Wide Input Range: Accepts a range of 1 V p-p to 2 V p-p on the analog input, offering flexibility for various signal types.
๐ข Note
We offer a wide range of Analog Devices products. If you are looking for other models, feel free to contact us for more information!
Reviews
There are no reviews yet.