Datasheet for AD9643:
- Manufacturer Part Number : AD9643
- Manufacturer : AD
- Description : 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
- Series : AD9643
- Reference Price : USD 57.992
- 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 : AD9643
- 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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- SNR = 70.6 dBFS at 185 MHz AIN and 250 MSPS
- SFDR = 85 dBc at 185 MHz AIN and 250 MSPS
- −151.6 dBFS/Hz input noise at 185 MHz, −1 dBFS AIN and 250 MSPS
- Total power consumption: 785 mW at 250 MSPS
- 1.8 V supply voltages
- LVDS (ANSI-644 levels) outputs
- Integer 1-to-8 input clock divider (625 MHz maximum input)
- Sample rates of up to 250 MSPS
- IF sampling frequencies of up to 400 MHz
- Internal ADC voltage reference
- Flexible analog input range
- 1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal)
- ADC clock duty cycle stabilizer
- 95 dB channel isolation/crosstalk
- Serial port control
- Energy saving power-down modes
The AD9643 is a dual, 14-bit analog-to-digital converter (ADC) with sampling speeds of up to 250 MSPS. The AD9643 is designed to support communications applications, where low cost, small size, wide bandwidth, and versatility are desired.
The dual ADC cores feature a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth inputs supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.
The ADC output data is routed directly to the external, 14-bit, LVDS output port and formatted as either interleaved or channel multiplexed.
Flexible power-down options allow significant power savings, when desired.
Programming for setup and control are accomplished using a 3-wire SPI-compatible serial interface.
The AD9643 is available in a 64-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C. Thisproduct is protected by a U.S. patent.
Product Highlights
- Integrated dual, 14-bit, 170 MSPS/210 MSPS/250 MSPS ADCs.
- Operation from a single 1.8 V supply and a separate digital output driver supply accommodating LVDS outputs.
- Proprietary differential input maintains excellent SNR performance for input frequencies of up to 400 MHz.
- SYNC input allows synchronization of multiple devices.
- 3-pin, 1.8 V SPI port for register programming and register readback.
- Pin compatibility with the AD9613, allowing a simple migration down from 14 bits to 12 bits. This part is also pin compatible with the AD6649 and the AD6643.
Applications
- Communications
- Diversity radio systems
- Multimode digital receivers (3G)
- TD-SCDMA, WiMax, WCDMA, CDMA2000, GSM, EDGE, LTE
- I/Q demodulation systems
- Smart antenna systems
- General-purpose software radios
- Ultrasound equipment
- Broadband data applications
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.
