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AD15252 Datenblatt(PDF) 1 Page - Analog Devices |
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AD15252 Datenblatt(HTML) 1 Page - Analog Devices |
1 / 20 page 12-Bit, 65 MSPS, Dual ADC AD15252 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: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. FEATURES 12-bit, 65 MSPS dual ADC Differential input with 100 Ω input impedance Full-scale analog input: 296 mV p-p 170 MHz, 3 dB bandwidth SNR (−9 dBFS): 64 dBFS (70 MHz AIN), 64 dBFS (140 MHz AIN) SFDR (−9 dBFS): 77 dBFS (70 MHz AIN), 73 dBFS (140 MHz AIN) 435 mW per channel Dual parallel output buses Out-of-range indicators Independent clocks Duty cycle stabilizer Twos complement or offset binary data format APPLICATIONS Antijam GPS receivers Wireless and wired broadband communications Communications test equipment FUNCTIONAL BLOCK DIAGRAM INA LPF DATA BUS A PDWNA CLKA INB LPF DATA BUS B PDWNB DFS CLKB OEB_A OEB_B AD15252 OTR_A OTR_B Figure 1. GENERAL DESCRIPTION The AD15252 is a dual, 12-bit, 65 MSPS, analog-to-digital converter (ADC). It features a differential front-end amplification circuit followed by a sample-and-hold amplifier and multistage pipeline ADC. It is designed to operate with a 3.3 V analog supply and a 2.5 V/3.3 V digital supply. Each input is fully differential, ac-coupled, and terminated in 100 Ω input impedances. The full-scale differential signal input range is 296 mV p-p. Two parallel, 12-bit digital output buses provide data flow from the ADCs. The digital output data is presented in either straight binary or twos complement format. Out-of-range (OTR) signals indicate an overflow condition, which can be used with the most significant bit to determine low or high overflow. Dual single-ended clock inputs control all internal conversion cycles. A duty cycle stabilizer allows wide variations in the clock duty cycle while maintaining excellent performance. The AD15252 is optimized for applications in antijam global positioning receivers and is well suited for communications applications. PRODUCT HIGHLIGHTS 1. Dual 12-bit, 65 MSPS ADC with integrated analog signal conditioning optimized for antijam global positioning system receiver (AJ-GPS) applications. 2. Operates from a single 3.3 V power supply and features a separate digital output driver supply to accommodate 2.5 V and 3.3 V logic families. 3. Packaged in a space-saving 8 mm × 8 mm chip scale package ball grid array (CSP_BGA) and is specified over the industrial temperature range (–40°C to +85°C). OBSOLETE |
Ähnliche Teilenummer - AD15252_15 |
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Ähnliche Beschreibung - AD15252_15 |
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