Datasheet for AD9251:
- Manufacturer Part Number : AD9251
- Manufacturer : AD
- Description : 14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter
- Series : AD9251
- Reference Price : USD 15.248
- Our Price : We have a better price, contact us by email
- Product Type : High Speed A/D Converters >10 MSPS
- Function : Standard High Speed A/D Converters >20 MSPS
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD9251
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The AD9251 is a monolithic, dual-channel, 1.8 V supply,14-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS analog-to-digitalconverter (ADC). It features a high performance sample-andholdcircuit and on-chip voltage reference.
The product uses multistage differential pipeline architecturewith output error correction logic to provide 14-bit accuracy at80 MSPS data rates and to guarantee no missing codes over thefull operating temperature range.
The ADC contains several features designed to maximizeflexibility and minimize system cost, such as programmableclock and data alignment and programmable digital test patterngeneration. The available digital test patterns include built-indeterministic and pseudorandom patterns, along with customuser-defined test patterns entered via the serial port interface (SPI).
A differential clock input controls all internal conversion cycles.An optional duty cycle stabilizer (DCS) compensates for widevariations in the clock duty cycle while maintaining excellentoverall ADC performance.
The digital output data is presented in offset binary, gray code,or twos complement format. A data output clock (DCO) isprovided for each ADC channel to ensure proper latch timingwith receiving logic. Both 1.8 V and 3.3 V CMOS levels aresupported and output data can be multiplexed onto a singleoutput bus.
The AD9251 is available in a 64-lead RoHS Compliant LFCSPand is specified over the industrial temperature range (−40°Cto +85°C).
Product Highlights
- The AD9251 operates from a single 1.8 V analog power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families.
- The patented sample-and-hold circuit maintains excellent performance for input frequencies up to 200 MHz and is designed for low cost, low power, and ease of use.
- A standard serial port interface supports various product features and functions, such as data output formatting, internal clock divider, power-down, DCO/DATA timing and offset adjustments, and voltage reference modes.
- The AD9251 is packaged in a 64-lead RoHS compliant LFCSP that is pin compatible with the AD9268 16-bit ADC, the AD9258 14-bit ADC, the AD9231 12-bit ADC, and the AD9204 10-bit ADC, enabling a simple migration path between 10-bit and 16-bit converters sampling from 20 MSPS to 125 MSPS.
Applications
- Communications
- Diversity radio systems
- Multimode digital receivers
GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA - I/Q demodulation systems
- Smart antenna systems
- Battery-powered instruments
- Hand held scope meters
- Portable medical imaging
- Ultrasound
- Radar/LIDAR
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
