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AD9057BRS-40

製品説明
仕様・特性

a FEATURES 8-Bit, Low Power ADC: 200 mW Typical 120 MHz Analog Bandwidth On-Chip 2.5 V Reference and Track-and-Hold 1 V p-p Analog Input Range Single 5 V Supply Operation 5 V or 3 V Logic Interface Power-Down Mode: <10 mW 3 Performance Grades (40 MSPS, 60 MSPS, 80 MSPS) APPLICATIONS Digital Communications (QAM Demodulators) RGB and YC/Composite Video Processing Digital Data Storage Read Channels Medical Imaging Digital Instrumentation PRODUCT DESCRIPTION The AD9057 is an 8-bit monolithic analog-to-digital converter optimized for low cost, low power, small size, and ease of use. With 40 MSPS, 60 MSPS, or 80 MSPS encode rate capability and full-power analog bandwidth of 120 MHz, the component is ideal for applications requiring excellent dynamic performance. To minimize system cost and power dissipation, the AD9057 includes an internal 2.5 V reference and a track-and-hold (T/H) circuit. The user must provide only a 5 V power supply and an encode clock. No external reference or driver components are required for many applications. The AD9057’s encode input is TTL/CMOS compatible, and the 8-bit digital outputs can be operated from 5 V or 3 V supplies. A 8-Bit 40 MSPS/60 MSPS/80 MSPS A/D Converter AD9057 FUNCTIONAL BLOCK DIAGRAM PWRDN VD VDD AD9057 AIN T/H ADC 8 D7–D0 1k⍀ BIAS OUT VREF IN VREF OUT 2.5V GND ENCODE power-down function may be exercised to bring total consumption to <10 mW. In power-down mode, the digital outputs are driven to a high impedance state. Fabricated on an advanced BiCMOS process, the AD9057 is available in a space-saving 20-lead shrink small outline package (20-lead SSOP) and is specified over the industrial temperature range (–40∞C to +85∞C). Customers desiring multichannel digitization may consider the AD9059, a dual 8-bit, 60 MSPS monolithic based on the AD9057 ADC core. The AD9059 is available in a 28-lead surface-mount plastic package (28-lead SSOP) and is specified over the industrial temperature range. REV. D 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. 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 companies. 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 © 2003 Analog Devices, Inc. All rights reserved.

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