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AD8251ARZ-R7

更新时间: 2024-01-14 01:46:36
品牌 Logo 应用领域
亚德诺 - ADI 仪表放大器放大器电路光电二极管
页数 文件大小 规格书
8页 124K
描述
12MHz 20V/us G=1,2,4,8 Programmable Gain iCMOS Instrumentation Amplifier

AD8251ARZ-R7 技术参数

是否Rohs认证:符合生命周期:Obsolete
Reach Compliance Code:compliant风险等级:5.84
Is Samacsys:N放大器类型:INSTRUMENTATION AMPLIFIER
JESD-30 代码:R-PDSO-G10功能数量:1
端子数量:10最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP10,.19,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源:+-5/+-12 V认证状态:Not Qualified
子类别:Instrumentation Amplifiers表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUALBase Number Matches:1

AD8251ARZ-R7 数据手册

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12MHz 20V/μs G=1,2,4,8 Programmable  
Gain  
i
CMOS™ Instrumentation Amplifier  
Preliminary Technical Data  
AD8251  
FEATURES  
Easy to Use  
GENERAL DESCRIPTION  
Programmable Gains: 1, 2, 4, 8  
Digital or Pin Programmable Gain Setting  
Temp Range -40°C to 85°C  
The AD8251 is a digitally gain programmable  
instrumentation amplifier that has high GΩ input  
impedance and low distortion making it suitable for sensor  
interfacing and driving high sample rate analog to digital  
converters. It has high bandwidth of 12MHz, low distortion  
and settle time of 0.5us to 0.01%. Offset drift and gain drift  
are limited to 1uV/°C and 10ppm/°C respectively. In  
addition to its wide input common-voltage range, it boasts a  
high common-mode rejection of 80dB at G=1 from DC to  
50kHz. The combination of precision DC performance  
coupled with high speed capabilities make the AD8251 an  
excellent candidate for data acquisition and medical  
applications. Furthermore, this monolithic solution  
simplifies design, manufacturing and boosts performance of  
instrumentation by maintaining tight match of internal  
resistors and amplifiers.  
EXCELLENT DC PERFORMANCE  
High CMRR 98dB G=8  
Low Gain Drift: 10ppm/°C  
Low Offset Drift: 1uV/°C  
Low Offset: 75uV G=8  
EXCELLENT AC PERFORMANCE  
Fast Settle Time: 0.5us to 0.01%  
High Slew Rate: 20V/μs  
High CMRR over Frequency: 80dB to 50kHz  
Low Noise: 13nVHz, G=8  
Low Power: 3.5 mA (typ)  
Supply: ±5V to ±12V  
The AD8251s user interface comprises of a parallel port that  
allows users to set the gain in one of three different ways. A  
two bit word sent to A1 and A2, via a bus may be latched  
Applications  
Data Acquisition  
Bio-Medical Analysis  
Test and Measurement  
High Performance System Monitoring  
using the  
input. An alternative is to set the gain within  
WR  
1μs by using the gain port in transparent mode where the  
state of A0 and A1 directly set the gain. The last method is  
to strap A1 and A2 to a high or low voltage potential,  
permanently setting the gain.  
DGD  
WR  
A1  
A0  
Logic  
-IN  
The AD8251 is available in a 10 pin MSOP package and  
specified over -40°C to 85°C, making it an excellent solution  
for applications where size and packing density are  
important considerations.  
OUT  
+IN  
AD8251  
+VS  
-VS  
REF  
Figure 1. Functional Block Diagram  
Rev.PrB  
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.  
Specifications subject to change without notice. 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  
Fax: 781.326.8703  
www.analog.com  
© 2006 Analog Devices, Inc. All rights reserved.  

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