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LMH5401IRMSR

更新时间： 2024-09-16 01:12:47
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德州仪器 - TI /
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56页 3657K
描述
8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier

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LMH5401IRMSR 数据手册

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Sample &  
Buy  
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Community  
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Folder  
Tools &  
Software  
Technical  
Documents  
LMH5401  
SBOS710B –OCTOBER 2014–REVISED JANUARY 2015  
LMH5401 8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier  
1 Features  
3 Description  
The LMH5401 is a very high-performance, differential  
amplifier optimized for radio frequency (RF),  
intermediate frequency (IF), or high-speed, dc-  
coupled, time-domain applications. The device is  
ideal for dc- or ac-coupled applications that may  
1
•
Gain Bandwidth Product (GBP): 8 GHz  
•
Excellent Linearity Performance:  
DC to 2 GHz, G = 12 dB  
•
•
Slew Rate: 17,500 V/µs  
require  
a
single-ended-to-differential  
(SE-DE)  
Low HD2, HD3 Distortion  
conversion when driving an analog-to-digital  
converter (ADC). The LMH5401 generates very low  
levels of second- and third-order distortion when  
operating in SE-DE or differential-to-differential (DE-  
DE) mode.  
(1 VPP, 200 Ω, DE-DE, G = 12 dB):  
–
–
–
–
100 MHz: HD2 at –104 dBc, HD3 at –96 dBc  
200 MHz: HD2 at –95 dBc, HD3 at –92 dBc  
500 MHz: HD2 at –80 dBc, HD3 at –77 dBc  
1 GHz: HD2 at –64 dBc, HD3 at –58 dBc  
The amplifier is optimized for use in both SE-DE and  
DE-DE systems. The device has unprecedented  
usable bandwidth from dc to 2 GHz. The LMH5401  
can be used for SE-DE conversions in the signal  
chain without external baluns in a wide range of  
applications such as test and measurement,  
broadband communications, and high-speed data  
acquisition.  
•
Low IMD2, IMD3 Distortion  
(2 VPP, 200 Ω, DE-DE, G = 12 dB):  
–
–
–
200 MHz: IMD2 at –96 dBc, IMD3 at –95 dBc  
500 MHz: IMD2 at –80 dBc, IMD3 at –83 dBc  
1 GHz: IMD2 at –70 dBc, IMD3 at –63 dBc  
•
•
•
•
•
Input Voltage Noise: 1.25 nV/√Hz  
Input Current Noise: 3.5 pA/√Hz  
Supports Single- and Dual-Supply Operation  
Power Consumption: 55 mA  
A common-mode reference input pin is provided to  
align the amplifier output common-mode with the  
ADC input requirements. Power supplies between  
3.3 V and 5.0 V can be selected and dual-supply  
operation is supported when required by the  
application. A power-down feature is also available  
for power savings.  
Power-Down Feature  
2 Applications  
This level of performance is achieved at a very low  
power level of 275 mW when a 5.0-V supply is used.  
The device is fabricated in Texas Instruments'  
advanced complementary BiCMOS process and is  
available in a space-saving, UQFN-14 package for  
higher performance.  
•
•
•
•
•
•
•
•
GSPS ADC Drivers  
ADC Drivers for High-Speed Data Acquisition  
ADC Drivers for 1-GBPS Ethernet over Microwave  
DAC Buffers  
IF, RF, and Baseband Gain Blocks  
SAW Filter Buffers and Drivers  
Balun Replacement DC to 2 GHz  
Level Shifters  
Device Information(1)  
DEVICE NAME  
LMH5401  
PACKAGE  
BODY SIZE  
UQFN (14)  
2.50 mm × 2.50 mm  
(1) For all available packages, see the orderable addendum at  
the end of the datasheet.  
Distortion versus Frequency  
(G = 12 dB, SE-DE, RL = 200 Ω, VPP = 2 V)  
0
LMH5401 Driving an ADC12J4000  
HD2  
HD3  
±20  
RT  
50-:,  
FB+  
IN-  
25 :  
RF  
Single-Ended  
OUT+ RO  
10 :  
OUT_AMP  
10 :  
Input  
RG  
±40  
±60  
ꢀꢀ  
+
ꢀ
+
ꢀ
IN+  
IN-  
LMH5401  
Filter  
RO  
ADC  
IN+  
FB-  
RG+RM  
RF  
OUTꢀ  
25 :  
±80  
CM  
±100  
±120  
10  
100  
1k  
Frequency (MHz)  
C014  
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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LMH5401IRMSR 替代型号

型号 品牌 替代类型 描述 数据表
LMH5401IRMST TI

完全替代

 8-GHz, Low-Noise, Low-Power, Fully-Differential Amplifier

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