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OPA820

更新时间： 2023-09-03 20:30:26
品牌 Logo 应用领域
德州仪器 - TI 放大器运算放大器
页数 文件大小 规格书
50页 1399K
描述
单位增益稳定、低噪声、电压反馈运算放大器

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中文翻译

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OPA820 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete包装说明：,
Reach Compliance Code：not_compliant风险等级：5.87
放大器类型：OPERATIONAL AMPLIFIER峰值回流温度（摄氏度）：NOT SPECIFIED
子类别：Operational Amplifier处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

OPA820 数据手册

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OPA820  
SBOS303D –JUNE 2004–REVISED DECEMBER 2016  
OPA820 Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier  
1 Features  
3 Description  
The OPA820 device provides a wideband, unity-gain  
stable, voltage-feedback amplifier with a very-low  
input-noise voltage and high-output current using a  
low 5.6-mA supply current. At unity-gain, the OPA820  
device gives more than 800-MHz bandwidth with less  
than 1-dB peaking. The OPA820 device complements  
this high-speed operation with excellent DC precision  
in a low-power device. A worst-case input-offset  
voltage of ±750 µV and an offset current of ±400 nA  
provide excellent absolute DC precision for pulse  
amplifier applications.  
1
•
High Bandwidth (240 MHz, G = 2)  
High-Output Current (±110 mA)  
Low-Input Noise (2.5 nV/√Hz)  
Low-Supply Current (5.6 mA)  
Flexible Supply Voltage:  
•
•
•
•
–
–
Dual ±2.5 V to ±6 V  
Single 5 V to 12 V  
•
Excellent DC Accuracy:  
–
–
Maximum 25°C Input Offset Voltage = ±750 µV  
Maximum 25°C Input Offset Current = ±400 nA  
Minimal input and output voltage-swing headroom  
allow the OPA820 device to operate on a single 5-V  
supply with more than 2-VPP output swing. While not  
a rail-to-rail (RR) output, this swing supports most  
emerging analog-to-digital converter (ADC) input  
ranges with lower power and noise than typical RR  
output op amps.  
2 Applications  
•
•
•
•
•
•
•
•
•
Low-Cost Video Line Drivers  
ADC Preamplifiers  
Active Filters  
Exceptionally low dG/dP (0.01% or 0.03°) supports  
low-cost composite-video line-driver applications.  
Existing designs can use the industry-standard  
pinout, 8-pin SOIC package while emerging high-  
density portable applications can use the 5-pin SOT-  
23. Offering the lowest thermal impedance of the  
Low-Noise Integrators  
Portable Test Equipment  
Optical Channel Amplifiers  
Low-Power, Baseband Amplifiers  
CCD Imaging Channel Amplifiers  
OPA650 and OPA620 Upgrade  
industry in  
a
SOT package, along with full  
specification over both the commercial and industrial  
temperature ranges, provides solid performance over  
a wide temperature range.  
Device Information(1)  
PART NUMBER  
PACKAGE  
SOIC (8)  
SOT-23 (5)  
BODY SIZE (NOM)  
4.90 mm × 3.91 mm  
2.90 mm × 1.60 mm  
OPA820  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
AC-Coupled, 14-Bit ADS850 Interface  
5 V  
5 V  
REFT  
(3 V)  
R
2 kꢀ  
2 kꢀ  
S
0.1 mF  
V
IN  
24.9 ꢀ  
+
OPA820  
IN  
IN  
50 ꢀ  
100 pF  
ADS850  
14-Bit  
10 MSPS  
œ5 V  
2 kꢀ  
402 ꢀ  
402 ꢀ  
0.1 µF  
(2 V) (1 V)  
REFB VREF  
2 kꢀ  
SEL  
Copyright © 2016, Texas Instruments Incorporated  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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中文翻译

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OPA820 替代型号

型号 品牌 替代类型 描述 数据表
OPA4820 TI

功能相似

 Quad, Low-Power, Single-Supply, Wideband Operational Amplifier
OPA2822 TI

功能相似

 Dual, Wideband, Low-Noise Operational Amplifier

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OPA820ID BB

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OPA820ID TI

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 		单位增益稳定、低噪声、电压反馈运算放大器 | D | 8 | -40 to 85
OPA820IDBVR BB

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 		Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier
OPA820IDBVR TI

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 		单位增益稳定、低噪声、电压反馈运算放大器 | DBV | 5 | -40 to 85
OPA820IDBVRG4 TI

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 		单位增益稳定、低噪声、电压反馈运算放大器 | DBV | 5 | -40 to 85
OPA820IDBVT BB

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 		Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier
OPA820IDBVT TI

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 		单位增益稳定、低噪声、电压反馈运算放大器 | DBV | 5 | -40 to 85
OPA820IDBVTG4 TI

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 		单位增益稳定、低噪声、电压反馈运算放大器 | DBV | 5 | -40 to 85
OPA820IDR BB

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 		Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier

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