LMH6704   
650 MHz Selectable Gain Buffer with Disable 		Click link to Download

Features
  • Wideband operation

    AV = +1, VO = 0.5 VPP

    650 MHz

    AV = +2, VO = 0.5 VPP

    450 MHz

    AV = +2, VO = 2 VPP

    400 MHz

High output current

±90 mA
  • Very low distortion

    2nd/3rd harmonics (10 MHz, RL = 100):

    -62/-78

    Differential gain/Differential phase:

    0.02%/0.02°

Low noise

2.3nV/

High slew rate

3000 V/µs

Supply current

11.5 mA

Description

The LMH™6704 is a very wideband, DC coupled selectable gain buffer designed specifically for wide dynamic range systems requiring exceptional signal fidelity. The LMH6704 includes on chip feedback and gain set resistors, simplifying PCB layout while providing user selectable gains of +1, +2 and -1 V/V. The LMH6704 provides a disable pin, which places the amplifier in a high output impedance, low power mode. The Disable pin may be allowed to float high.

With a 650 MHz Small Signal Bandwidth (AV = +1), full power gain flatness to 200 MHz, and excellent Differential Gain and Phase, the LMH6704 is optimized for video applications. High resolution video systems will benefit from the LMH6704's ability to drive multiple video loads at low levels of differential gain or differential phase distortion.

The LMH6704 is constructed with National's proprietary high speed complementary bipolar process using National's proven current feedback circuit architectures. It is available in 8-Pin SOIC and 6-Pin SOT23 packages.

Applications
•HDTV, NTSC & PAL video systems
•Video switching and distribution
•ADC driver
•DAC buffer
•RGB driver
•High speed multiplexer
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                                              LMH6704
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Connection Diagram
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Typical Performance
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ParametersValues
Output Current 90 mA
Slew Rate 3000 Volts/usec
Diff Gain 0.01 dB
Diff Phase 0.02 %
Channels 1 Channels
Buffer Type Programmable
Av+1 BW 650 MHz
Av+2 BW 450 MHz
Supply Current Per Channel 11.5 mA
PowerWise Rating 2 17.7 uA/MHz
Av-1 BW 400 MHz
Gain 1 V/V
Supply Min 8 Volt
Supply Max 12 Volt
Offset Voltage max, 25C 7 mV
Max Input Bias Current 15000 nA
Voltage Noise 9.3 nV/root(Hz)
HD 2nd -62 dB
HD 3rd -78 dB
Special Features Shutdown
Gain Bandwidth 650 MHz
Function Buffer
Temperature Min -40 deg C
Temperature Max 95 deg C

Datasheet
TitleSizeDateOther
Language
LMH6704 650 MHz Selectable Gain Buffer with Disable776
Kbytes		20-Sep-06 


Featured Application Notes
TitleSizeDateOther
Language
AN-1255: Application Note 1255 An OrCAD PSPICE Library for the VIP10 High-Speed Op Amp160
Kbytes		19-Nov-08日本語
中文


More Application Notes
TitleSizeDateOther
Language
AN-1255: Application Note 1255 An OrCAD PSPICE Library for the VIP10 High-Speed Op Amp160
Kbytes		19-Nov-08日本語
中文

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LMH6704MA/NOPB

RoHS



SOIC NARROW		Full production
Lead Time: 6 weeks

Samples with Eval Board
DistributorRegionQty
DIGIKEYWorldwide552
FARNELLEurope and Asia163
RS COMPONENTSWorldwide11
$1.25 each at 1K+ pcsrail
of
95
LMH6704MAX/NOPB

RoHS



SOIC NARROW		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.25 each at 1K+ pcsreel
of
2500
LMH6704MF/NOPB

RoHS



SOT-23		Full production
Lead Time: 8 weeks

Samples with Eval Board
DistributorRegionQty
DIGIKEYWorldwide1464
FARNELLEurope and Asia852
FUTUREWorldwide1100
KEIKONGAsia Pacific1000
RS COMPONENTSWorldwide647
$1.25 each at 1K+ pcsreel
of
1000
LMH6704MFX/NOPB

RoHS



SOT-23		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.25 each at 1K+ pcsreel
of
3000

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LMH6704MA/NOPB
SOIC NARROW81260RoHSDownloadN/A
NSZXTT
LMH67
04MA
LMH6704MAX/NOPB
SOIC NARROW81260RoHSDownloadN/A
NSZXTT
LMH67
04MA
LMH6704MF/NOPB
SOT-2361260RoHSDownloadN/A
B07A
XTT
LMH6704MFX/NOPB
SOT-2361260RoHSDownloadN/A
B07A
XTT

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMH6704MAVIP 100128010011550004327734403
LMH6704MAXVIP 100128010011550004327734403
LMH6704MFVIP 100128010011550004327734403
LMH6704MFXVIP 100128010011550004327734403

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


[Information as of 21-Nov-2009]