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AD9284 데이터시트(PDF) 1 Page - Analog Devices

부품명 AD9284
상세설명  8-Bit, 250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
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홈페이지  http://www.analog.com
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8-Bit, 250 MSPS, 1.8 V Dual
Analog-to-Digital Converter (ADC)
Data Sheet
AD9284
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2011–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
Single 1.8 V supply operation
SNR: 49.3 dBFS at 200 MHz input at 250 MSPS
SFDR: 65 dBc at 200 MHz input at 250 MSPS
Low power: 314 mW at 250 MSPS
On-chip reference and track-and-hold
1.2 V p-p analog input range for each channel
Differential input with 500 MHz bandwidth
LVDS-compliant digital output
DNL: ±0.2 LSB
Serial port control options
Offset binary, Gray code, or twos complement data format
Optional clock duty cycle stabilizer
Built-in selectable digital test pattern generation
Pin-programmable power-down function
Available in 48-lead LFCSP
APPLICATIONS
Communications
Diversity radio systems
I/Q demodulation systems
Battery-powered instruments
Handheld scope meters
Low cost digital oscilloscopes
OTS: video over fiber
GENERAL DESCRIPTION
The AD9284 is a dual 8-bit, monolithic sampling, analog-to-digital
converter (ADC) that supports simultaneous operation and is
optimized for low cost, low power, and ease of use. Each ADC
operates at up to a 250 MSPS conversion rate with outstanding
dynamic performance.
The ADC requires a single 1.8 V supply and an encode clock for
full performance operation. No external reference components
are required for many applications. The digital outputs are LVDS
compatible.
The AD9284 is available in a Pb-free, 48-lead LFCSP that is
specified over the industrial temperature range of −40°C to +85°C.
PRODUCT HIGHLIGHTS
1. Integrated Dual 8-Bit, 250 MSPS ADC.
2. Single 1.8 V Supply Operation with LVDS Outputs.
3. Power-Down Option Controlled via a Pin-Programmable
Setting.
FUNCTIONAL BLOCK DIAGRAM
AD9284
CLK+
CLK–
VIN+A
VIN–A
VREF
VCM
ADC
ADC
SPI
CLOCK
MANAGEMENT
VIN–B
VIN+B
SDIO/
PWDN
OE
SCLK
CSB
×1.5
1.0V
VREF
REF
SELECT
D7+ (MSB), D7– (MSB)
D0+ (LSB), D0– (LSB)
(CHANNEL A)
D7+ (MSB), D7– (MSB)
D0+ (LSB), D0– (LSB)
(CHANNEL B)
DCO
GENERATION
DCO+
DCO–
RBIAS
AGND
AVDD
DRVDD
DRGND
Figure 1.


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AD9284 AD-AD9284 Datasheet
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   8-Bit, 250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)
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