Datasheet for AD9644:
- Manufacturer Part Number : AD9644
- Manufacturer : AD
- Description : 14-Bit, 80 MSPS/155 MSPS, 1.8V Dual, Serial Output A/D Converter
- Series : AD9644
- Reference Price : USD 51
- 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 : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD9644
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for AD9644. If you need any more information about AD9644, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
- JESD204A coded serial digital outputs
- SNR = 73.7 dBFS at 70 MHz and 80 MSPS
- SNR = 71.7 dBFS at 70 MHz and 155 MSPS
- SFDR = 92 dBc at 70 MHz and 80 MSPS
- SFDR = 92 dBc at 70 MHz and 155 MSPS
- Low power: 423 mW at 80 MSPS, 567 mW at 155 MSPS
- 1.8 V supply operation
- IF sampling frequencies to 250 MHz
- Integer 1-to-8 input clock divider
−148.6 dBFS/Hz input noise at 180 MHz and 80 MSPS - -150.3 dBFS/Hz input noise at 180 MHz and 155 MSPS
- Please see data sheet for additional features
The AD9644 is a dual, 14-bit, analog-to-digital converter (ADC) with a high speed serial output interface and sampling speeds of either 80 MSPS or 155 MSPS.
The AD9644 is designed to support communications appli-cations where high performance, combined with low cost, small size, and versatility, is desired. The JESD204A high speed serial interface reduces board routing requirements and lowers pin count requirements for the receiving device.
The dual ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth differential sample-and-hold analog input amplifiers that support a variety of user-selectable input ranges. An integrated voltage reference eases design consid-erations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.
By default, the ADC output data is routed directly to the two external JESD204A serial output ports. These outputs are at CML voltage levels. Two modes are supported such that output coded data is either sent through one data link or two. (L = 1; F = 4 or L = 2; F = 2). Independent synchronization inputs (DSYNC) are provided for each channel.
Flexible power-down options allow significant power savings, when desired.
Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.
The AD9644 is available in a 48-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C.
This product is protected by a U.S. patent.
Applications- Communications
- Diversity radio systems
- Multimode digital receivers (3G and 4G)
GSM, EDGE, W-CDMA, LTE,
CDMA2000, WiMAX, TD-SCDMA - I/Q demodulation systems
- Smart antenna systems
- General-purpose software radios
- Broadband data applications
- Ultrasound equipment
- An on-chip PLL allows users to provide a single ADC sampling clock; the PLL multiplies the ADC sampling clock to produce the corresponding data rate clock.
- The configurable JESD204A output block supports up to 1.6 Gbps per channel data rate when using a dedicated data link per ADC or 3.2 Gbps data rate when using a single shared data link for both ADCs.
- Proprietary differential input that maintains excellent SNR performance for input frequencies up to 250 MHz.
- Operation from a single 1.8 V power supply.
- Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, test modes, voltage reference mode, and serial output configuration.
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.