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| 型號： | AD9284-250EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD9284 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 2 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 250M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 輸入范圍： | 1.2 Vpp |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD9284 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | AD9284BCPZ-250-ND - IC ADC 8BIT 250MSPS 1.8V 48LFCSP AD9284BCPZRL7-250-ND - IC ADC 8BIT 250MSPS 1.8V 48LFCSP |
8-Bit, 250 MSPS, 1.8 V Dual
Analog-to-Digital Converter (ADC)
Data Sheet
Rev. A
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.
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
SPI
CLOCK
MANAGEMENT
VIN–B
VIN+B
SDIO/
PWDN
OE
SCLK
CSB
L
V
DS
OU
TP
U
T
B
U
FFE
R
L
V
DS
OU
TP
U
T
B
U
FFE
R
×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
09085-
001
Figure 1.
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