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OPA620KU/2K5

更新时间： 2024-01-26 05:37:28
品牌 Logo 应用领域
德州仪器 - TI 放大器光电二极管
页数 文件大小 规格书
16页 233K
描述
Wideband Precision Operational Amplifier 8-SOIC

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中文翻译

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OPA620KU/2K5 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOIC-8针数：8
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.84
放大器类型：OPERATIONAL AMPLIFIERJESD-30 代码：R-PDSO-G8
长度：4.9 mm功能数量：1
端子数量：8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）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Operational Amplifier表面贴装：YES
温度等级：INDUSTRIAL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：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

OPA620KU/2K5 数据手册

 浏览型号OPA620KU/2K5的Datasheet PDF文件第7页浏览型号OPA620KU/2K5的Datasheet PDF文件第8页浏览型号OPA620KU/2K5的Datasheet PDF文件第9页浏览型号OPA620KU/2K5的Datasheet PDF文件第11页浏览型号OPA620KU/2K5的Datasheet PDF文件第12页浏览型号OPA620KU/2K5的Datasheet PDF文件第13页 
6) Avoid overloading the output. Remember that output  
current must be provided by the amplifier to drive its own  
feedback network as well as to drive its load. Lowest  
distortion is achieved with high impedance loads.  
INPUT PROTECTION  
Static damage has been well recognized for MOSFET  
devices, but any semiconductor device deserves protection  
from this potentially damaging source. The OPA620 incor-  
porates on-chip ESD protection diodes as shown in Figure 2.  
This eliminates the need for the user to add external protec-  
tion diodes, which can add capacitance and degrade AC  
performance.  
7) Don’t forget that these amplifiers use ±5V supplies.  
Although they will operate perfectly well with +5V and  
–5.2V, use of ±15V supplies will destroy the part.  
8) Standard commercial test equipment has not been  
designed to test devices in the OPA620’s speed range.  
Benchtop op amp testers and ATE systems will require a  
special test head to successfully test these amplifiers.  
All pins on the OPA620 are internally protected from ESD  
by means of a pair of back-to-back reverse-biased diodes to  
either power supply as shown. These diodes will begin to  
conduct when the input voltage exceeds either power  
supply by about 0.7V. This situation can occur with loss of  
the amplifier’s power supplies while a signal source is still  
present. The diodes can typically withstand a continuous  
current of 30mA without destruction. To insure long term  
reliability, however, diode current should be externally lim-  
ited to 10mA or so whenever possible.  
9) Terminate transmission line loads. Unterminated lines,  
such as coaxial cable, can appear to the amplifier to be a  
capacitive or inductive load. By terminating a transmission  
line with its characteristic impedance, the amplifier’s load  
then appears purely resistive.  
10) Plug-in prototype boards and wire-wrap boards will not  
be satisfactory. A clean layout using RF techniques is  
essential; there are no shortcuts.  
ESDProtectiondiodesinternally  
connected to all pins.  
+VCC  
OFFSET VOLTAGE ADJUSTMENT  
The OPA620’s input offset voltage is laser-trimmed and  
will require no further adjustment for most applications.  
However, if additional adjustment is needed, the circuit in  
Figure 1 can be used without degrading offset drift with  
temperature. Avoid external adjustment whenever possible  
since extraneous noise, such as power supply noise, can be  
inadvertently coupled into the amplifier’s inverting input  
terminal. Remember that additional offset errors can be  
created by the amplifier’s input bias currents. Whenever  
possible, match the impedance seen by both inputs as is  
shown with R3. This will reduce input bias current errors to  
the amplifier’s offset current, which is typically only 0.2µA.  
External  
Pin  
Internal  
Circuitry  
–VCC  
FIGURE 2. Internal ESD Protection.  
The internal protection diodes are designed to withstand  
2.5kV (using Human Body Model) and will provide ad-  
equate ESD protection for most normal handling proce-  
dures. However, static damage can cause subtle changes in  
amplifier input characteristics without necessarily destroy-  
ing the device. In precision operational amplifiers, this may  
cause a noticeable degradation of offset voltage and drift.  
Therefore, static protection is strongly recommended when  
handling the OPA620.  
+VCC  
R2  
RTrim  
20kΩ  
47kΩ  
OPA620  
OUTPUT DRIVE CAPABILITY  
The OPA620’s design uses large output devices and has  
been optimized to drive 50Ω and 75Ω resistive loads. The  
device can easily drive 6Vp-p into a 50Ω load. This high-  
output drive capability makes the OPA620 an ideal choice  
for a wide range of RF, IF, and video applications. In many  
cases, additional buffer amplifiers are unneeded.  
–VCC  
R1  
(1)R3 = R1 || R2  
VIN or Ground  
Internal current-limiting circuitry limits output current to  
about 150mA at 25°C. This prevents destruction from  
accidental shorts to common and eliminates the need for  
external current-limiting circuitry. Although the device can  
withstand momentary shorts to either power supply, it is not  
recommended.  
Output Trim Range +VCC  
(
R2 ) to –VCC  
RTrim  
(
R2  
RTrim  
)
NOTE: (1) R3 is optional and can be used to cancel offset errors due to input  
bias currents.  
FIGURE 1. Offset Voltage Trim.  
®
10  
OPA620  
1...78910111213...16

中文翻译

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OPA620KU/2K5 替代型号

型号 品牌 替代类型 描述 数据表
OPA620KU TI

完全替代

 OPERATIONAL AMPLIFIER
EL2045CSZ INTERSIL

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