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AD9822 PDF预览

AD9822

更新时间: 2024-01-13 05:51:08
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
15页 153K
描述
Complete 14-Bit CCD/CIS Signal Processor

AD9822 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:SSOP
包装说明:SSOP,针数:28
Reach Compliance Code:unknown风险等级:5.07
Is Samacsys:N商用集成电路类型:CONSUMER CIRCUIT
JESD-30 代码:R-PDSO-G28JESD-609代码:e3
长度:10.2 mm湿度敏感等级:1
功能数量:1端子数量:28
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:COMMERCIAL
座面最大高度:2 mm最大供电电压 (Vsup):5.25 V
最小供电电压 (Vsup):4.75 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:5.3 mm
Base Number Matches:1

AD9822 数据手册

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Complete 14-Bit  
CCD/CIS Signal Processor  
a
AD9822  
FEATURES  
PRODUCT DESCRIPTION  
14-Bit 15 MSPS A/D Converter  
No Missing Codes Guaranteed  
3-Channel Operation Up to 15 MSPS  
1-Channel Operation Up to 12.5 MSPS  
Correlated Double Sampling  
1–6x Programmable Gain  
The AD9822 is a complete analog signal processor for CCD  
imaging applications. It features a 3-channel architecture  
designed to sample and condition the outputs of trilinear  
color CCD arrays. Each channel consists of an input clamp,  
Correlated Double Sampler (CDS), offset DAC and Pro-  
grammable Gain Amplifier (PGA), multiplexed to a high  
performance 14-bit A/D converter.  
؎350 mV Programmable Offset  
Input Clamp Circuitry  
The CDS amplifiers may be disabled for use with sensors such  
as Contact Image Sensors (CIS) and CMOS active pixel sensors,  
which do not require CDS.  
Internal Voltage Reference  
Multiplexed Byte-Wide Output (8+6 Format)  
3-Wire Serial Digital Interface  
3 V/5 V Digital I/O Compatibility  
28-Lead SOIC or SSOP  
The 14-bit digital output is multiplexed into an 8-bit output  
word that is accessed using two read cycles. The internal  
registers are programmed through a 3-wire serial interface, and  
provide adjustment of the gain, offset, and operating mode.  
Low Power CMOS: 385 mW (Typ)  
Power-Down Mode: <1 mW  
The AD9822 operates from a single 5 V power supply, typically  
consumes 385 mW of power, and is packaged in a 28-lead SOIC  
or SSOP.  
APPLICATIONS  
Flatbed Document Scanners  
Film Scanners  
Digital Color Copiers  
Multifunction Peripherals  
FUNCTIONAL BLOCK DIAGRAM  
AVDD  
AVSS  
CML  
CAPT  
CAPB  
AVDD  
AVSS  
DRVDD DRVSS  
CDS  
PGA  
VINR  
VING  
AD9822  
OEB  
BANDGAP  
9-BIT  
DAC  
REFERENCE  
14  
8
14:8  
MUX  
3:1  
MUX  
14-BIT  
ADC  
DOUT  
CDS  
CDS  
PGA  
9-BIT  
DAC  
CONFIGURATION  
REGISTER  
MUX  
REGISTER  
SCLK  
PGA  
VINB  
DIGITAL  
CONTROL  
INTERFACE  
RED  
GREEN  
BLUE  
SLOAD  
SDATA  
6
9-BIT  
DAC  
GAIN  
REGISTERS  
RED  
GREEN  
BLUE  
INPUT  
CLAMP  
BIAS  
9
OFFSET  
OFFSET  
REGISTERS  
CDSCLK1 CDSCLK2  
ADCCLK  
REV. A  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  

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