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ADS7844EB PDF预览

ADS7844EB

更新时间: 2024-11-24 22:53:39
品牌 Logo 应用领域
BB 转换器模数转换器光电二极管
页数 文件大小 规格书
14页 205K
描述
12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER

ADS7844EB 技术参数

是否Rohs认证: 不符合生命周期:Transferred
Reach Compliance Code:unknown风险等级:5.66
最大模拟输入电压:5 V最小模拟输入电压:
转换器类型:ADC, SUCCESSIVE APPROXIMATIONJESD-30 代码:R-PDSO-G20
JESD-609代码:e0长度:8.65 mm
最大线性误差 (EL):0.0244%模拟输入通道数量:8
位数:12功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C输出位码:BINARY
输出格式:SERIAL封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP20,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:3/5 V认证状态:Not Qualified
采样速率:0.2 MHz采样并保持/跟踪并保持:SAMPLE
子类别:Analog to Digital Converters标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL宽度:3.9 mm
Base Number Matches:1

ADS7844EB 数据手册

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ADS7844  
®
ADS7844  
A
DS  
7844  
12-Bit, 8-Channel Serial Output Sampling  
ANALOG-TO-DIGITAL CONVERTER  
DESCRIPTION  
FEATURES  
SINGLE SUPPLY: 2.7V to 5V  
The ADS7844 is an 8-channel, 12-bit sampling ana-  
log-to-digital converter (ADC) with a synchronous  
serial interface. Typical power dissipation is 3mW at  
a 200kHz throughput rate and a +5V supply. The  
reference voltage (VREF) can be varied between 100mV  
and VCC, providing a corresponding input voltage  
range of 0V to VREF. The device includes a shutdown  
mode which reduces power dissipation to under 1µW.  
The ADS7844 is guaranteed down to 2.7V operation.  
8-CHANNEL SINGLE-ENDED OR  
4-CHANNEL DIFFERENTIAL INPUT  
UP TO 200kHz CONVERSION RATE  
±1 LSB MAX INL AND DNL  
GUARANTEED NO MISSING CODES  
72dB SINAD  
SERIAL INTERFACE  
Low power, high speed, and on-board multiplexer  
make the ADS7844 ideal for battery operated systems  
such as personal digital assistants, portable multi-  
channel data loggers, and measurement equipment.  
The serial interface also provides low-cost isolation  
for remote data acquisition. The ADS7844 is available  
in a 20-lead QSOP package and the MAX147 equiva-  
lent 20-lead SSOP package and is guaranteed over the  
–40°C to +85°C temperature range.  
20-LEAD QSOP AND  
20-LEAD SSOP PACKAGES  
ALTERNATE SOURCE FOR MAX147  
APPLICATIONS  
DATA ACQUISITION  
TEST AND MEASUREMENT  
INDUSTRIAL PROCESS CONTROL  
PERSONAL DIGITAL ASSISTANTS  
BATTERY-POWERED SYSTEMS  
CH0  
CH1  
CH2  
SAR  
DCLK  
Eight  
Channel  
Multiplexer  
CH3  
CS  
CH4  
Comparator  
SHDN  
DIN  
Serial  
Interface  
and  
CH5  
CDAC  
CH6  
CH7  
COM  
VREF  
Control  
DOUT  
BUSY  
International Airport Industrial Park  
Mailing Address: PO Box 11400, Tucson, AZ 85734  
Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706  
Tel: (520) 746-1111  
Twx: 910-952-1111  
Internet: http://www.burr-brown.com/  
Cable: BBRCORP Telex: 066-6491  
FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132  
©1998 Burr-Brown Corporation  
PDS-1463D  
Printed in U.S.A. July, 1999  

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