Datasheet for AD9268-125EBZ:
- Manufacturer Part Number : AD9268-125EBZ
- Manufacturer : AD
- Description : 10 MHz Bandwidth, 640 MSPS Dual Continuous Time Sigma-Delta Modulator IC
- Series : AD9267
- Reference Price : USD 0
- 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 : Not Recommended for New Designs
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : Evaluation Board
- Pins : -
- MFG Package Case : -
- Part Type : EVAL
- Standard Packing Type : -
- Standard Packing Quantity : -
- Working Temperature : -
- Other Part Number : AD9268-125EBZ
- 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 AD9267 has a resistive input impedance that significantlyrelaxes the requirements of the driver amplifier. In addition, a32× oversampled fifth-order continuous time loop filter attenuates out-of-band signals and aliases, reducing the need for external filters at the input. The low noise figure of 15 dB relaxes the linearity requirements of the front-end signal chain components, and the high dynamic range reduces the need for an automatic gain control (AGC) loop.
A differential input clock controls all internal conversion cycles.An external clock input or the integrated integer-N PLL provides the 640 MHz internal clock needed for the oversampled conti-nuous time Σ-Δ modulator. The digital output data is presentedas 4-bit, LVDS at 640 MSPS in twos complement format. A data clock output (DCO) is provided to ensure proper latch timing with receiving logic. Additional digital signal processing may be required on the 4-bit modulator output to remove the out-of-band noise and to reduce the sample rate.
The AD9267 operates on a 1.8 V power supply, consuming 416 mW. The AD9267 is available in a 64-lead LFCSP and is specified over the industrial temperature range (−40°Cto +85°C).
Product Highlights
- Continuous time Σ-Δ architecture efficiently achieves high dynamic range and wide bandwidth.
- Passive input structure reduces or eliminates the require-ments for a driver amplifier.
- An oversampling ratio of 32× and high order loop filter provide excellent alias rejection, reducing or eliminatingthe need for antialiasing filters.
- Operates from a single 1.8 V power supply.
- A standard serial port interface (SPI) supports variousproduct features and functions.
- Features a low pin count, high speed LVDS interface with data output clock.
Applications
- Baseband quadrature receivers: CDMA2000, W-CDMA, multicarrier GSM/EDGE, 802.16x, and LTE
- Quadrature sampling instrumentation
This designates products ADI does not recommend broadly for new designs.
