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OP495AZ/883 PDF预览

OP495AZ/883

更新时间: 2024-11-04 18:51:03
品牌 Logo 应用领域
亚德诺 - ADI 放大器信息通信管理
页数 文件大小 规格书
16页 275K
描述
IC QUAD OP-AMP, 500 uV OFFSET-MAX, 0.08 MHz BAND WIDTH, CDIP8, CERDIP-8, Operational Amplifier

OP495AZ/883 数据手册

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Dual/Quad Rail-to-Rail  
Operational Amplifiers  
OP295/OP495  
PIN CONFIGURATIONS  
FEATURES  
Rail-to-rail output swing  
Single-supply operation: 3 V to 36 V  
Low offset voltage: 300 μV  
Gain bandwidth product: 75 kHz  
High open-loop gain: 1000 V/mV  
Unity-gain stable  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
OP295  
OUT B  
–IN B  
+IN B  
TOP VIEW  
(Not to Scale)  
Figure 1. 8-Lead Narrow-Body SOIC_N  
S Suffix (R-8)  
Low supply current/per amplifier: 150 μA maximum  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
OP295  
APPLICATIONS  
OUT B  
–IN B  
+IN B  
Battery-operated instrumentation  
Servo amplifiers  
Actuator drives  
Sensor conditioners  
Power supply control  
Figure 2. 8-Lead PDIP  
P Suffix (N-8)  
OUT A  
–IN A  
+IN A  
V+  
1
2
3
4
5
6
7
14 OUT D  
13 –IN D  
12 +IN D  
11 V–  
GENERAL DESCRIPTION  
Rail-to-rail output swing combined with dc accuracy are the  
key features of the OP495 quad and OP295 dual CBCMOS  
operational amplifiers. By using a bipolar front end, lower noise  
and higher accuracy than those of CMOS designs have been  
achieved. Both input and output ranges include the negative  
supply, providing the user with zero-in/zero-out capability. For  
users of 3.3 V systems such as lithium batteries, the OP295/OP495  
are specified for 3 V operation.  
OP495  
+IN B  
–IN B  
OUT B  
10 +IN C  
9
8
–IN C  
OUT C  
Figure 3. 14-Lead PDIP  
P Suffix (N-14)  
Maximum offset voltage is specified at 300 μV for 5 V operation,  
and the open-loop gain is a minimum of 1000 V/mV. This yields  
performance that can be used to implement high accuracy systems,  
even in single-supply designs.  
OUT A  
–IN A  
+IN A  
V+  
1
2
3
4
5
6
7
8
16 OUT D  
15 –IN D  
14 +IN D  
13 V–  
OP495  
TOP VIEW  
(Not to Scale)  
+IN B  
–IN B  
OUT B  
NC  
12 +IN C  
11 –IN C  
10 OUT C  
The ability to swing rail-to-rail and supply 15 mA to the load  
makes the OP295/OP495 ideal drivers for power transistors and  
H bridges. This allows designs to achieve higher efficiencies and  
to transfer more power to the load than previously possible  
without the use of discrete components.  
9
NC  
NC = NO CONNECT  
Figure 4. 16-Lead SOIC_W  
S Suffix (RW-16)  
For applications such as transformers that require driving  
inductive loads, increases in efficiency are also possible.  
Stability while driving capacitive loads is another benefit of this  
design over CMOS rail-to-rail amplifiers. This is useful for  
driving coax cable or large FET transistors. The OP295/OP495  
are stable with loads in excess of 300 pF.  
The OP295 and OP495 are specified over the extended indus-  
trial (−40°C to +125°C) temperature range. The OP295 is  
available in 8-lead PDIP and 8-lead SOIC_N surface-mount  
packages. The OP495 is available in 14-lead PDIP and 16-lead  
SOIC_W surface-mount packages.  
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  
©2009 Analog Devices, Inc. All rights reserved.  
 
 
 

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