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OP297FSZ-REEL7

更新时间： 2024-02-17 18:26:06
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器放大器电路光电二极管
页数 文件大小 规格书
16页 327K
描述
Dual Low Bias Current Precision Operational Amplifier

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OP297FSZ-REEL7 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：SOIC
包装说明：SOP,针数：8
Reach Compliance Code：unknown风险等级：5.06
Is Samacsys：N放大器类型：OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB)：0.00075 µA标称共模抑制比：130 dB
最大输入失调电压：300 µVJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：1负供电电压上限：-20 V
标称负供电电压 (Vsup)：-15 V功能数量：2
端子数量：8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：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
座面最大高度：1.75 mm标称压摆率：0.15 V/us
子类别：Operational Amplifier供电电压上限：20 V
标称供电电压 (Vsup)：15 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：MATTE TIN
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
标称均一增益带宽：500 kHz宽度：3.9 mm
Base Number Matches：1

OP297FSZ-REEL7 数据手册

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Dual Low Bias Current  
Precision Operational Amplifier  
OP297  
FEATURES  
PIN CONFIGURATION  
Low offset voltage: 50 μV maximum  
1
2
3
4
8
7
6
5
V+  
OUTA  
–INA  
+INA  
V–  
Low offset voltage drift: 0.6 μV/°C maximum  
Very low bias current: 100 pA maximum  
Very high open-loop gain: 2000 V/mV minimum  
Low supply current (per amplifier): 625 μA maximum  
Operates from 2 V to 20 V supplies  
OUTB  
–INB  
+INB  
A
B
Figure 1.  
High common-mode rejection: 120 dB minimum  
60  
40  
V
V
= ±15V  
S
APPLICATIONS  
= 0V  
CM  
Strain gage and bridge amplifiers  
High stability thermocouple amplifiers  
Instrumentation amplifiers  
Photocurrent monitors  
High gain linearity amplifiers  
Long-term integrators/filters  
Sample-and-hold amplifiers  
Peak detectors  
20  
I
–
B
0
I
+
B
–20  
–40  
–60  
I
OS  
Logarithmic amplifiers  
Battery-powered systems  
–75  
–50  
–25  
0
25  
50  
75  
100  
125  
TEMPERATURE (°C)  
GENERAL DESCRIPTION  
Figure 2. Low Bias Current over Temperature  
The OP297 is the first dual op amp to pack precision perform-  
ance into the space saving, industry-standard 8-lead SOIC  
package. The combination of precision with low power and  
extremely low input bias current makes the dual OP297 useful  
in a wide variety of applications.  
400  
300  
200  
100  
0
1200 UNITS  
T
V
V
= 25°C  
= ±15V  
A
S
= 0V  
CM  
Precision performance of the OP297 includes very low offset,  
under 50 μV, and low drift, below 0.6 μV/°C. Open-loop gain  
exceeds 2000 V/mV, ensuring high linearity in every application.  
Errors due to common-mode signals are eliminated by the  
common-mode rejection of over 120 dB, which minimizes  
offset voltage changes experienced in battery-powered systems.  
The supply current of the OP297 is under 625 μA.  
–100 –80 –60 –40 –20  
0
20  
40  
60  
80 100  
INPUT OFFSET VOLTAGE (µV)  
The OP297 uses a super-beta input stage with bias current  
cancellation to maintain picoamp bias currents at all tempera-  
tures. This is in contrast to FET input op amps whose bias  
currents start in the picoamp range at 25°C, but double for  
every 10°C rise in temperature, to reach the nanoamp range  
above 85°C. Input bias current of the OP297 is under 100 pA at  
25°C and is under 450 pA over the military temperature range  
per amplifier. This part can operate with supply voltages as low  
as 2 V.  
Figure 3. Very Low Offset  
Combining precision, low power, and low bias current, the  
OP297 is ideal for a number of applications, including instru-  
mentation amplifiers, log amplifiers, photodiode preamplifiers,  
and long term integrators. For a single device, see the OP97; for  
a quad device, see the OP497.  
Rev. F  
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 registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2006 Analog Devices, Inc. All rights reserved.  
 
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OP297FSZ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
OP297FSZ ADI

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