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AD9040A Arkusz danych(PDF) 1 Page - Analog Devices

Numer części AD9040A
Szczegółowy opis  10-Bit 40 MSPS A/D Converter
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Strona internetowa  http://www.analog.com
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AD9040A Arkusz danych(HTML) 1 Page - Analog Devices

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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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