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OPA643NB

更新时间： 2024-11-05 02:58:31
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
18页 195K
描述
Wideband Low Distortion, High Gain OPERATIONAL AMPLIFIER

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中文翻译

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OPA643NB 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：TSOP, TSOP5/6,.11,37Reach Compliance Code：not_compliant
风险等级：5.89放大器类型：OPERATIONAL AMPLIFIER
架构：VOLTAGE-FEEDBACK25C 时的最大偏置电流 (IIB)：30 µA
频率补偿：YES (AVCL>=5)最大输入失调电压：1500 µV
JESD-30 代码：R-PDSO-G5低-失调：NO
标称负供电电压 (Vsup)：-5 V功能数量：1
端子数量：5最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSOP封装等效代码：TSOP5/6,.11,37
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE
电源：+-5 V认证状态：Not Qualified
子类别：Operational Amplifiers最大压摆率：26 mA
供电电压上限：6 V标称供电电压 (Vsup)：5 V
表面贴装：YES技术：BIPOLAR
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.95 mm端子位置：DUAL
宽带：YESBase Number Matches：1

OPA643NB 数据手册

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®
OPA643  
OPA643  
O
OPA643  
Wideband Low Distortion, High Gain  
OPERATIONAL AMPLIFIER  
FEATURES  
APPLICATIONS  
● LOW DISTORTION: –90dBc at 5MHz  
● BASE STATION ADC PREAMP  
● ADC/DAC BUFFER AMPLIFIER  
● LOW DISTORTION IF AMPLIFIER  
● LOW NOISE: 2.3nV/√Hz  
● GAIN-BANDWIDTH PRODUCT: 800MHz  
● AVAILABLE IN SOT23-5 PACKAGE  
● STABLE IN GAINS ≥ 3  
● LOW NOISE, BROADBAND,  
TRANSIMPEDANCE AMPLIFIER  
● LOW NOISE PREAMPLIFIER  
● VIDEO AMPLIFICATION  
● TEST INSTRUMENTATION  
● HIGH SLEW RATE: 1000V/µs  
● HIGH OPEN-LOOP GAIN: 95dB  
● HIGH OUTPUT CURRENT: ±60mA  
DESCRIPTION  
The OPA643 provides a level of speed and dynamic  
range previously unattainable in a monolithic op amp.  
Using a de-compensated voltage feedback architec-  
ture with two internal gain stages, the OPA643 achieves  
exceptionally low harmonic distortion over a wide  
frequency range. The "classic" differential input pro-  
vides all the familiar benefits of precision op amps,  
such as bias current cancellation and very low invert-  
ing current noise compared with wideband current  
feedback op amps. High slew rate and open-loop gain,  
along with low input noise and high output current  
drive make the OPA643 ideal for very high dynamic  
range requirements.  
The high gain bandwidth product for the gain ≥ 3  
stable OPA643 makes it particularly suitable for  
wideband transimpedance amplifiers and moderate gain  
IF amplifier applications. External compensation  
techniques may be used to apply the OPA643 at low  
gains giving exceptionally low distortion and frequency  
response flatness. Where unity gain stability with  
comparable distortion performance is required, consider  
the OPA642.  
+5V  
5kΩ  
REFT  
0.1µF  
+5V  
ADS805  
0.1µF  
50Ω  
2Vp-p  
Low Gain  
Compensation  
0.1µF  
280Ω  
Analog  
Measured  
80dB SFDR  
12-Bit  
Input  
OPA643  
20MSPS  
47pF  
50Ω  
–5V  
Source  
402Ω  
806Ω  
5kΩ  
1Vp-p  
10MHz  
REFB  
2.7pF  
0.1µF  
56.9Ω  
14pF  
High Dynamic Range 20MSPS Digitizer  
International Airport Industrial Park  
•
Mailing Address: PO Box 11400, Tucson, AZ 85734  
FAXLine: (800) 548-6133 (US/Canada Only)  
• Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111  
Internet: http://www.burr-brown.com/  
•
•
Cable: BBRCORP  
•
Telex: 066-6491  
•
FAX: (520) 889-1510  
•
Immediate Product Info: (800) 548-6132  
©
PDS-1191D  
1993 Burr-Brown Corporation  
Printed in U.S.A. March, 1998  
SBOS025  
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