LMH6628
Dual Wideband,Low Noi,Voltage Feedback Op Amp
General Description
The National LMH6628is a high speed dual op amp that
offers a traditional voltage feedback topology featuring unity
gain stability and slew enhanced circuitry.The LMH6628’s
low noi and very low harmonic distortion combine to form
a wide dynamic range op amp that operates from a single
善于思考(5V to12V)or dual(±5V)power supply.
Each of the LMH6628’s cloly matched channels provides
a300MHz unity gain bandwidth and low input voltage noi
density(2nV/).Low2nd/3rd harmonic distortion(−65/
−74dBc at10MHz)make the LMH6628a perfect wide dy-
namic range amplifier for matched I/Q channels.
With its fast and accurate ttling(12ns to0.1%),the
LMH6628is also an excellent choice for wide dynamic
range,anti-aliasing filters to buffer the inputs of hi resolution
analog-to-digital converters.Combining the LMH6628’s two
tightly matched amplifiers in a single8-pin SOIC package
reduces cost and board space for many composite amplifier
applications such as active filters,differential line drivers/
receivers,fast peak detectors and instrumentation amplifi-
ers.
The LMH6628is fabricated using National’s VIP10™com-
plimentary bipolar process.
To reduce design times and assist in board layout,the
商务策划师LMH6628is supported by an evaluation board
(CLC730036).
Features
n Wide unity gain bandwidth:300MHz
n Low noi:2nV/
n Low Distortion:−65/−74dBc(10MHz)
n Settling time:12ns to0.1%
n Wide supply voltage range:±2.5V to±6V
n High output current:±85mA
n Improved replacement for CLC428
Applications
n High speed dual op amp
n Low noi integrators
n Low noi active filters
n Driver/receiver for transmission systems
n High speed detectors
n I/Q channel amplifiers
Connection Diagram
8-Pin SOIC
20038535
Top View
Inverting Frequency Respon
20038515
足三里穴位图January2003LMH6628
Dual
Wideband,
Low
Noi,
Voltage
Feedback
Op
Amp ©2003National Semiconductor Corporation
查询LMH6628供应商
Absolute Maximum Ratings
(Note 1)If Military/Aerospace specified devices are required,plea contact the National Semiconductor Sales Office/Distributors for availability and specifications.ESD Tolerance (Note 4)Human Body Model 2kV Machine Model 200V Supply Voltage 13.5Short Circuit Current (Note 3)C
ommon-Mode Input Voltage V +-V −Differential Input Voltage
V +-V −
Maximum Junction Temperature +150˚C
Storage Temperature Range −65˚C to +150˚C
Lead Temperature (soldering 10c)
+300˚C
Operating Ratings (Note 1)
Thermal Resistance (Note 5)Package (θJC )(θJA )SOIC
65˚C/W
145˚C/W Temperature Range −40˚C to +85˚C
Nominal Supply Voltage
±2.5V to ±6V
Electrical Characteristics (Note 2)
V CC =±5V,A V =+2V/V,R F =100Ω,R G =100Ω,R L =100Ω;unless otherwi specified.Boldface limits apply at the temperature extremes.Symbol Parameter
Conditions
Min
Typ Max
Units Frequency Domain Respon
GB Gain Bandwidth Product V O <0.5V PP 200MHz SSBW -3dB Bandwidth,A V =+1V O <0.5V PP 180300MHz SSBW -3dB Bandwidth,A V =+2V O <0.5V PP 100
MHz
GFL Gain Flatness V O <0.5V PP GFP Peaking DC to 200MHz 0.0dB GFR Rolloff
DC to 20MHz .1dB LPD Linear Pha Deviation DC to 20MHz .1deg Time Domain Respon
TR Ri and Fall Time 1V Step 4ns TS Settling Time 2V Step to 0.1%12ns OS Overshoot 1V Step 1%SR Slew Rate
4V Step 300
550V/µs Distortion And Noi Respon
HD22nd Harmonic Distortion 1V PP ,10MHz −65dBc HD33rd Harmonic Distortion 1V PP ,10MHz
−74
dBc
Equivalent Input Noi V N Voltage 1MHz to 100MHz 2nV/I N Current 1MHz to 100MHz 2pA/XTLKA Crosstalk Input Referred,10MHz
−62dB Static,DC Performance
G OL Open-Loop Gain 5653
63
dB
V IO Input Offt Voltage ±.5
±2±2.6mV DV IO Average Drift 5
µV/˚C I BN Input Bias Current ±.7
±20±30µA DI BN Average Drift 150nA/˚C I OS Input Offt Current 0.3±6
µA I OSD Average Drift
5nA/˚C PSRR Power Supply Rejection Ratio 604670dB CMRR Common-Mode Rejection Ratio 575462dB
I CC
Supply Current
Per Channel,R L =∞
7.57.0
9
1212.5
小微歌词
mA
L M H 6628
2
LMH6628 Electrical Characteristics(Note2)(Continued)
V CC=±5V,A V=+2V/V,R F=100Ω,R G=100Ω,R L=100Ω;unless otherwi specified.Boldface limits apply at the
temperature extremes.
Symbol Parameter Conditions Min Typ Max Units Miscellaneous Performance
R IN Input Resistance Common-Mode500kΩ
Differential-Mode200kΩ
C IN Input Capacitance Common-Mode 1.5pF
Differential-Mode 1.5pF
R OUT Output Resistance Clod-Loop.1Ω
V O Output Voltage Range R L=∞±3.8V
±3.5V
V OL R L=100Ω±3.2
±3.1
CMIR Input Voltage Range Common-Mode±3.7V
I O Output Current±50±85mA
Note1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating Ratings indicate conditions for which the device is
intended to be functional,but specific performance is not guaranteed.For guaranteed specifications,e the Electrical Characteristics tables.
Note2:Electrical Table values apply only for factory testing conditions at the temperature indicated.Factory testing conditions result in very limited lf-heating of
the device such that T J=T A.No guarantee of parametric performance is indicated in the electrical tables under conditions of internal lf heating where T J>T A.
See Note6for information on temperature de-rating of this device."Min/Max ratings are bad on product characterization and simulation.Individual parameters
are tested as noted.
Note3:Output is short circuit protected to ground,however maximum reliability is obtained if output current does not exceed160mA.
防水工艺
Note4:Human body model,1.5kΩin ries with100pF.Machine model,0ΩIn ries with200pF.
Note5:The maximum power dissipation is a function of T J(MAX),θJA and T A.The maximum allowable power dissipation at any ambient temperature is
P D=(T J(MAX)-T A)/θJA.All numbers apply for packages soldered directly onto a PC board.
Ordering Information
Package Part Number Package Marking Transport Media NSC Drawing
8-pin SOIC LMH6628MA LMH6628MA Rails M08A
LMH6628MAX 2.5k Units Tape and Reel
3
Typical Performance Characteristics
(T A =+25˚,A V =+2,V CC =±5V,R f =100Ω,R L =100Ω,un-less specified)
Non-Inverting Frequency Respon
Inverting Frequency Respon
20038513
20038515
Frequency Respon vs.Load Resistance Frequency Respon vs.Output Amplitude
2003852520038510
Frequency Respon vs.Capacitive Load Gain Flatness &Linear Pha
植树节的手抄报
20038516
20038524
L M H 6628
4
Typical Performance Characteristics (T A =+25˚,A V =+2,V CC =±5V,R f =100Ω,R L =100Ω,
unless specified)(Continued)
Channel Matching
Channel to Channel Crosstalk
20038514
20038509
运动量Pul Respon (V O =2V)Pul Respon (V O =100mV)
2003851120038512
2nd Harmonic Distortion vs.Output Voltage 3rd Harmonic Distortion vs.Output Voltage
2003850720038508
抗美援朝的原因LMH6628
5
