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OP297ARC/883 PDF预览

OP297ARC/883

更新时间： 2024-02-22 21:53:14
品牌 Logo 应用领域
亚德诺 - ADI 放大器
页数 文件大小 规格书
16页 261K
描述
IC DUAL OP-AMP, 100 uV OFFSET-MAX, 0.5 MHz BAND WIDTH, CQCC20, CERAMIC, LCC-20, Operational Amplifier

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OP297ARC/883 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QLCC包装说明：CERAMIC, LCC-20
针数：20Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.67放大器类型：OPERATIONAL AMPLIFIER
架构：VOLTAGE-FEEDBACK最大平均偏置电流 (IIB)：0.00045 µA
25C 时的最大偏置电流 (IIB)：0.0001 µA最小共模抑制比：120 dB
标称共模抑制比：130 dB频率补偿：YES
最大输入失调电压：100 µVJESD-30 代码：S-CQCC-N20
JESD-609代码：e0长度：8.89 mm
低-偏置：YES低-失调：YES
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：20
最高工作温度：125 °C最低工作温度：-55 °C
封装主体材料：CERAMIC, METAL-SEALED COFIRED封装代码：QCCN
封装等效代码：LCC20,.35SQ封装形状：SQUARE
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：NOT SPECIFIED
电源：+-15 V认证状态：Not Qualified
筛选级别：38535Q/M;38534H;883B座面最大高度：2.54 mm
最小摆率：0.05 V/us标称压摆率：0.15 V/us
子类别：Operational Amplifier最大压摆率：1.5 mA
供电电压上限：20 V标称供电电压 (Vsup)：15 V
表面贴装：YES技术：BIPOLAR
温度等级：MILITARY端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：1.27 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
标称均一增益带宽：500 kHz最小电压增益：2000000
宽度：8.89 mmBase Number Matches：1

OP297ARC/883 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  
APPLICATIONS  
V
V
= ±15V  
S
= 0V  
CM  
Strain gage and bridge amplifiers  
High stability thermocouple amplifiers  
Instrumentation amplifiers  
Photocurrent monitors  
20  
I
–
B
High gain linearity amplifiers  
Long-term integrators/filters  
Sample-and-hold amplifiers  
Peak detectors  
Logarithmic amplifiers  
Battery-powered systems  
0
I
+
B
–20  
–40  
–60  
I
OS  
GENERAL DESCRIPTION  
–75  
–50  
–25  
0
25  
50  
75  
100  
125  
TEMPERATURE (°C)  
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.  
Figure 2. Low Bias Current over Temperature  
400  
300  
200  
100  
0
1200 UNITS  
T
V
V
= 25°C  
A
= ±15V  
= 0V  
S
Precision performance of the OP297 includes very low offset  
(less than 50 μV) and low drift (less than 0.6 μV/°C). Open-  
loop gain exceeds 2000 V/mV, ensuring high linearity in every  
application.  
CM  
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.  
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.  
–100 –80 –60 –40 –20  
0
20  
40  
60  
80 100  
INPUT OFFSET VOLTAGE (µV)  
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. G  
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  
©2008 Analog Devices, Inc. All rights reserved.  
 
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