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AD9444 数据表(PDF) 1 Page - Analog Devices |
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AD9444 数据表(HTML) 1 Page - Analog Devices |
1 / 41 page 14-Bit, 80 MSPS, A/D Converter AD9444 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved. FEATURES 80 MSPS guaranteed sampling rate 100 dB two-tone SFDR with 69.3 MHz and 70.3 MHz 73.1 dB SNR with 70 MHz input 97 dBc SFDR with 70 MHz input Excellent linearity DNL = ±0.4 LSB typical INL = ±0.6 LSB typical 1.2 W power dissipation 3.3 V and 5 V supply operation 2.0 V p-p differential full-scale input LVDS outputs (ANSI-644 compatible) Data format select Output clock available APPLICATIONS Multicarrier, multimode cellular receivers Antenna array positioning Power amplifier linearization Broadband wireless Radar, infared imaging Communications instrumentation GENERAL DESCRIPTION The AD9444 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, track-and-hold circuit and is optimized for power, small size, and ease of use. The product operates at up to an 80 MSPS conversion rate and is optimized for multicarrier, multimode receivers, such as those found in cellular infrastructure equipment. The ADC requires 3.3 V and 5.0 V power supplies and a low voltage differential input clock for full performance operation. No external reference or driver components are required for many applications. Data outputs are LVDS-compatible (ANSI- 644) or CMOS-compatible and include the means to reduce the overall current needed for short trace distances. FUNCTIONAL BLOCK DIAGRAM CMOS OR LVDS OUTPUT STAGING CLOCK AND TIMING MANAGEMENT AGND DRGND DRVDD VREF CLK+ VIN+ AD9444 VIN– CLK– DCO AVDD1 AVDD2 DCS MODE DFS OUTPUT MODE T/H BUFFER 14 PIPELINE ADC 2 28 2 OR D13–D0 REF REFB SENSE REFT Figure 1. Optional features allow users to implement various selectable operating conditions, including data format select and output data mode. The AD9444 is available in a 100-lead surface-mount plastic package (100-lead TQFP/EP) specified over the industrial temperature range (−40°C to +85°C). PRODUCT HIGHLIGHTS 1. High performance: Outstanding SFDR performance for mul- ticarrier, multimode 3G and 4G cellular base station receivers. 2. Ease of use: On-chip reference and track-and-hold. An output clock simplifies data capture. 3. Packaged in a Pb-free, 100-lead TQFP/EP. 4. Clock DCS maintains overall ADC performance over a wide range of clock pulse widths. 5. OR (out-of-range) outputs indicate when the signal is beyond the selected input range. |
类似零件编号 - AD9444_17 |
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类似说明 - AD9444_17 |
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