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AD704JR

更新时间： 2024-02-02 12:17:48
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器
页数 文件大小 规格书
8页 400K
描述
Quad Picoampere Input Current Bipolar Op Amp

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AD704JR 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：DIP包装说明：CERDIP-14
针数：14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.31.00.01
风险等级：5.23Is Samacsys：N
放大器类型：OPERATIONAL AMPLIFIER架构：VOLTAGE-FEEDBACK
最大平均偏置电流 (IIB)：0.0007 µA25C 时的最大偏置电流 (IIB)：0.00025 µA
最小共模抑制比：108 dB标称共模抑制比：128 dB
频率补偿：YES最大输入失调电压：150 µV
JESD-30 代码：R-GDIP-T14JESD-609代码：e0
长度：19.55 mm低-偏置：YES
低-失调：YES微功率：YES
负供电电压上限：-18 V标称负供电电压 (Vsup)：-15 V
功能数量：4端子数量：14
最高工作温度：125 °C最低工作温度：-55 °C
封装主体材料：CERAMIC, GLASS-SEALED封装代码：DIP
封装等效代码：DIP14,.3封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：+-15 V认证状态：Not Qualified
座面最大高度：5.283 mm标称压摆率：0.1 V/us
子类别：Operational Amplifier最大压摆率：2.6 mA
供电电压上限：18 V标称供电电压 (Vsup)：15 V
表面贴装：NO技术：BIPOLAR
温度等级：MILITARY端子面层：Tin/Lead (Sn/Pb)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
标称均一增益带宽：800 kHz最小电压增益：100000
宽度：7.62 mmBase Number Matches：1

AD704JR 数据手册

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Quad Picoampere Input Current  
Bipolar Op Amp  
a
AD704  
FEATURES  
CONNECTION DIAGRAMS  
High DC Precision  
75 ␮V max Offset Voltage  
1 ␮V/؇C max Offset Voltage Drift  
150 pA max Input Bias Current  
0.2 pA/؇C typical IB Drift  
14-Pin Plastic DIP (N)  
14-Pin Cerdip (Q) Packages  
16-Pin SOIC  
(R) Package  
OUTPUT  
–IN  
14  
13  
12  
11  
10  
9
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
OUTPUT  
–IN  
OUTPUT  
–IN  
1
2
3
4
5
6
7
8
OUTPUT  
–IN  
1
4
1
4
Low Noise  
0.5 ␮V p-p typical Noise, 0.1 Hz to 10 Hz  
Low Power  
600 ␮A max Supply Current per Amplifier  
Chips & MIL-STD-883B Processing Available  
Available in Tape and Reel in Accordance  
with EIA-481A Standard  
+
+
IN  
+
IN  
+
IN  
IN  
AD704  
AD704  
+V  
S
+V  
S
–V  
+
–V  
S
S
(TOP VIEW)  
(TOP VIEW)  
+
IN  
IN  
+
+
IN  
IN  
–IN  
OUTPUT  
NC  
2
3
–IN  
–IN  
–IN  
2
3
OUTPUT  
NC  
OUTPUT  
8
OUTPUT  
Single Version: AD705, Dual Version: AD706  
PRIMARY APPLICATIONS  
Industrial/Process Controls  
Weigh Scales  
ECG/EKG Instrumentation  
Low Frequency Active Filters  
NC = NO CONNECT  
20-Terminal LCC  
(E) Package  
1
3
2
20 19  
PRODUCT DESCRIPTION  
4
+IN1  
+IN4  
NC  
18  
The AD704 is a quad, low power bipolar op amp that has the  
low input bias current of a BiFET amplifier but which offers a  
significantly lower IB drift over temperature. It utilizes Super-  
beta bipolar input transistors to achieve picoampere input bias  
current levels (similar to FET input amplifiers at room tempera-  
ture), while its IB typically only increases by 5× at +125°C  
(unlike a BiFET amp, for which IB doubles every 10°C resulting  
in a 1000× increase at +125°C). Furthermore the AD704  
achieves 75 µV offset voltage and low noise characteristics of a  
precision bipolar input op amp.  
NC 5  
17  
16  
AMP 1  
AMP 4  
+V  
–V  
S
6
7
S
AD704  
AMP 2  
AMP 3  
NC  
15 NC  
+IN2 8  
14 +IN3  
9
11  
13  
10  
12  
NC = NO CONNECT  
100  
Since it has only 1/20 the input bias current of an AD OP07, the  
AD704 does not require the commonly used “balancing”  
resistor. Furthermore, the current noise is 1/5 that of the  
AD OP07 which makes the AD704 usable with much higher  
source impedances. At 1/6 the supply current (per amplifier) of  
the AD OP07, the AD704 is better suited for today’s higher  
density circuit boards and battery powered applications.  
10  
TYPICAL JFET AMP  
1
The AD704 is an excellent choice for use in low frequency  
active filters in 12- and 14-bit data acquisition systems, in  
precision instrumentation, and as a high quality integrator. The  
AD704 is internally compensated for unity gain and is available  
in five performance grades. The AD704J and AD704K are rated  
over the commercial temperature range of 0°C to +70°C. The  
AD704A and AD704B are rated over the industrial temperature  
of –40°C to +85°C. The AD704T is rated over the military  
temperature range of –55°C to +125°C and is available  
processed to MIL-STD-883B, Rev. C.  
0.1  
AD704T  
0.01  
–55  
+25  
+125  
TEMPERATURE – °C  
Figure 1. Input Bias Current Over Temperature  
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: 617/329-4700  
Fax: 617/326-8703  
12345678

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