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AD9040A Arkusz danych(PDF) 1 Page - Analog Devices |
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AD9040A Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 16 page 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. AD9040A 10-Bit 40 MSPS A/D Converter FEATURES Low Power: 940 mW 53 dB SNR @ 10 MHz AIN On-Chip Track-and-Hold, Reference CMOS Compatible 2 V p-p Analog Input Fully Characterized Dynamic Performance APPLICATIONS Ultrasound Medical Imaging Digital Oscilloscopes Professional Video Digital Communications Advanced Television (MUSE Decoders) Instrumentation FUNCTIONAL BLOCK DIAGRAM ERROR CORRECTION AD9040A 10 BAND GAP REFERENCE 6-BIT ADC 5-BIT ADC T/H T/H T/H DECODE LOGIC DECODE LOGIC ENCODE AIN GND VOUT VREF BPREF AMP ARRAY REF AMP GENERAL DESCRIPTION The AD9040A is a complete 10-bit monolithic sampling analog- to-digital converter (ADC) with on-board track-and-hold (T/H) and reference. The unit is designed for low cost, high perfor- mance applications and requires only an encode signal to achieve 40 MSPS sample rates with 10-bit resolution. Digital inputs and outputs are CMOS compatible; the analog input requires a signal of 2 V p-p amplitude. The two-step architecture used in the AD9040A is optimized to provide the best dynamic performance available while maintaining low power requirements of only 940 mW typically; maximum dissi- pation is 1.1 W at 40 MSPS. The signal-to-noise ratio (SNR), including harmonics, is 53 dB, or 8.5 ENOB, when sampling an analog input of 10.3 MHz at 40 MSPS. Competitive devices perform at less than 7.5 ENOB and require external references and larger input signals. The AD9040A A/D converter is available in either a 28-lead PDIP or a 28-lead SOIC package. The two models operate over a commercial temperature range of 0 °C to 70°C. Contact the factory regarding availability of ceramic military temperature range devices. PRODUCT HIGHLIGHTS 1. CMOS compatible logic for direct interface to ASICs. 2. On-board track-and-hold provides excellent high frequency performance on analog inputs, critical for communications and medical imaging applications. 3. High input impedance and 2 V p-p input range reduce need for external amplifiers. 4. Easy to use; no cumbersome external voltage references required, allowing denser packing of ADCs for multichannel applications. 5. Available in 28-lead PDIP and SOIC packages. 6. Evaluation board includes AD9040AJR, reconstruction DAC, and latches. Space is available near the analog input and digital outputs of the converter for additional circuits. Order as part number AD9040A/PCB (schematic shown in data sheet). |
Podobny numer części - AD9040A_15 |
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Podobny opis - AD9040A_15 |
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