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LMH6639-MIL

更新时间： 2023-09-03 20:36:10
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
31页 1639K
描述
具有禁能功能的 190MHz 轨到轨输出放大器

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LMH6639-MIL 数据手册

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LMH6639  
www.ti.com  
SNOS989G –JANUARY 2002–REVISED MARCH 2013  
LMH6639 190MHz Rail-to-Rail Output Amplifier with Disable  
Check for Samples: LMH6639  
1
FEATURES  
DESCRIPTION  
The LMH6639 is a voltage feedback operational  
amplifier with a rail-to-rail output drive capability of  
110mA. Employing TI’s patented VIP10 process, the  
LMH6639 delivers a bandwidth of 190MHz at a  
current consumption of only 3.6mA. An input common  
mode voltage range extending to 0.2V below the V−  
and to within 1V of V+, makes the LMH6639 a true  
single supply op-amp. The output voltage range  
extends to within 30mV of either supply rail providing  
the user with a dynamic range that is especially  
desirable in low voltage applications.  
2
•
•
•
•
•
•
•
•
•
•
•
•
(VS = 5V, Typical Values Unless Specified)  
Supply Current (No Load) 3.6mA  
Supply Current (Off Mode) 400μA  
Output Resistance (Closed Loop 1MHz) 0.186Ω  
−3dB BW (AV = 1) 190MHz  
Settling Time 33nsec  
Input Common Mode Voltage −0.2V to 4V  
Output Voltage Swing 40mV from Rails  
Linear Output Current 110mA  
The LMH6639 offers a slew rate of 172V/μs resulting  
in a full power bandwidth of approximately 28MHz.  
The LMH6639 also offers protection for the input  
transistors by using two anti-parallel diodes and a  
series resistor connected across the inputs. The TON  
value of 83nsec combined with a settling time of  
33nsec makes this device ideally suited for  
multiplexing applications (see application note for  
details). Careful attention has been paid to ensure  
device stability under all operating voltages and  
modes. The result is a very well behaved frequency  
response characteristic for any gain setting including  
+1, and excellent specifications for driving video  
cables including harmonic distortion of −60dBc,  
differential gain of 0.12% and differential phase of  
0.045°  
Total Harmonic Distortion −60dBc  
Fully Characterized for 3V, 5V and ±5V  
No Output Phase Reversal with CMVR  
Exceeded  
•
•
•
•
Excellent Overdrive Recovery  
Off Isolation 1MHz −70dB  
Differential Gain 0.12%  
Differential Phase 0.045°  
APPLICATIONS  
•
•
•
•
•
Active Filters  
CD/DVD ROM  
ADC Buffer Amplifier  
Portable Video  
Current Sense Buffer  
100n  
5V  
+
+
-
V
OUT  
INPUT  
1k  
75W  
SD  
-
V
75W  
75W  
V
REF  
1k  
10n  
SHUTDOWN INPUT  
Figure 1. Typical Single Supply Schematic  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2002–2013, Texas Instruments Incorporated  
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