Features 1.5 GHz −3 dB small signal bandwidth @ AV = 1 1.25 GHz −3 dB large signal bandwidth @ AV = 1 800 MHz bandwidth @ AV = 4 450 MHz 0.1 dB flatness 3800 V/µs slew rate 10 ns settling time to 0.1% −90 dB THD @ 20 MHz −74 dB THD @ 70 MHz 20 ns enable/shutdown pin 5 to 12V operation Description The LMH6552 is a high performance fully differential amplifier designed to provide the exceptional signal fidelity and wide large-signal bandwidth necessary for driving 8 to 14 bit high speed data acquisition systems. Using National's proprietary differential current mode input stage architecture, the LMH6552 allows operation at gains greater than unity without sacrificing response flatness, bandwidth, harmonic distortion, or output noise performance. With external gain set resistors and integrated common mode feedback, the LMH6552 can be configured as either a differential input to differential output or single ended input to differential output gain block. The LMH6552 can be AC or DC coupled at the input which makes it suitable for a wide range of applications including communication systems and high speed oscilloscope front ends. The performance of the LMH6552 driving an ADC14DS105 is 86 dBc SFDR and 74 dBc SNR up to 40 MHz. The LMH6552 is available in an 8-pin SOIC package as well as a space saving, thermally enhanced 8-Pin LLP package for higher performance. Applications Differential ADC driver Video over twisted pair Differential line driver Single end to differential converter High speed differential signaling IF/RF amplifier Level shift amplifier SAW filter buffer/driver

Also Recommended LMH6550▲ Lower BW, Lower Power Version (400 MHz) LMH6551▲ Lower BW, Lower Power Version (370 MHz) LMH6553▲ 900MHz Version With Integrated Output Limiting Clamp LMH6552+ADC14DS105 combo circuit

Typical Application *click for larger image LMH6552+ADC14DS105 combo circuit	Connection Diagram *click for larger image 8-Pin SOIC Package *click for larger image LLP connection diagram
Typical Performance *click for larger image Frequency Response vs Gain (Diff Input)

Parameters / Values	LMH6552	LMH6550	LMH6551	LMH6553
Channels	1 Channels	1 Channels	1 Channels	1 Channels
Input OutputType	Diff In and Out	Diff In and Out	Diff In and Out	Diff In and Out
Gain Bandwidth	1000 MHz	400 MHz	370 MHz	720 MHz
Slew Rate	3800 Volts/usec	3000 Volts/usec	2400 Volts/usec	2300 Volts/usec
Supply Min	4.5 Volt	5 Volt	3 Volt	4.5 Volt
Supply Max	12 Volt	12 Volt	12 Volt	12 Volt
Offset Voltage max, 25C	16.5 mV	5 mV	5 mV
Supply Current Per Channel	19 mA	20 mA	12.5 mA	29.1 mA
PowerWise Rating 2	12.7 uA/MHz	50 uA/MHz	33.8 uA/MHz
Max Input Bias Current	8000 nA	50000 nA	10000 nA
Output Current	80 mA	75 mA	65 mA	120 mA
Voltage Noise	1.1 nV/root(Hz)	6 nV/root(Hz)	6 nV/root(Hz)	1.2 nV/root(Hz)
Shut down	Yes	Yes	No	No
Feedback Type	Current	Voltage	Voltage	Current
Av+1 BW	1000 MHz	400 MHz	370 MHz	720 MHz
Av+2 BW	930 MHz	200 MHz	185 MHz	680 MHz
Av+5 BW	800 MHz	80 MHz	74 MHz
Av+10 BW	500 MHz	40 MHz	37 MHz
HD 2nd	-82 dB	-92 dB	-94 dB	-79 dB
HD 3rd	-79 dB	-103 dB	-96 dB	-90 dB
Settling Time	10 ns	8 ns	18 ns	6 ns
Tsettling Conditions	to 0.1%	to 0.1%	to 0.1%	1%
Special Features	Differential in, Differential out	Differential in, Differential out	Differential in, Differential out	Output Limiting Clamp
Function	Op Amp	Op Amp	Op Amp	Op Amp
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C	85 deg C	125 deg C
PowerWise	Yes	Yes	Yes	Yes

Datasheets

Title		Size	Date	Other Language
	LMH6552 1.5 GHz Fully Differential Amplifier	720 Kbytes	19-Jul-11	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1704: Application Note 1704 LMH6555 Application as High Speed ADC Input Driver	141 Kbytes	20-Sep-07	日本語 中文
	AN-1716: Application Note 1716 Driving the ADC14DS105 High-Speed A/D Converter for High Performance	86 Kbytes	20-Jul-11	日本語 中文
	AN-1743: Application Note 1743 LMH6552SDEVAL High Speed Differential Amplifier Evaluation Board	417 Kbytes	20-Jun-08
	AN-1719: Application Note 1719 Noise Figure Analysis Fully Differential Amplifier	158 Kbytes	18-Sep-07	日本語 中文

Other Technical Documents

Title		Type	Date
	Using National's PowerWise Reference System for Energy-efficient Design	External Article	2008-05-14
	Adaptive Speed Control for Automotive Systems	Signal Path Designer	2007-11-20
	Selecting Amplifiers, ADCs, and Clocks for High-Performance Signal Paths	Signal Path Designer	2007-09-13
	Use Current-Feedback Amplifiers to Speed Up Data-Acquisition and High-End Video Systems	External Article	2009-06-15

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH6552MA/NOPB RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 16 AVNET-EM Worldwide 95 DIGI-KEY Worldwide 122 FARNELL Europe and Asia 249 NEWARK Americas 36 TAYLOR Americas 16 TECHMOSA Asia Pacific 95	$3.95 each at 1K+ pcs	rail of 95
LMH6552MAX/NOPB RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$3.95 each at 1K+ pcs	reel of 2500
LMH6552SD/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 AVNET-EM Worldwide 1000 CEAC Asia Pacific 2000 DIGI-KEY Worldwide 2014	$3.95 each at 1K+ pcs	reel of 1000
LMH6552SDX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$3.95 each at 1K+ pcs	reel of 4500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMH6552.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMH6552 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH6552SDEVAL	Evaluation Board for the LMH6552 High Speed Differential Amplifier	Full production	Distributor Region Qty AVNET-EM Worldwide 2 DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$125.00 each	1
Description: The LMH6552 evaluation board is designed to aid in the characterization of National Semiconductors high speed fully differential amplifiers in an 8-pin LLP package. Contents: LMH6552 High Speed Differential Amplifier Evaluation Board LMH6552 Datasheet Application Note 1743 LMH6552SD-EVAL High Speed Differential Amplifier Evaluation Board

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMH6552MA/NOPB	69.761	SOIC NARROW	8	1	260	Detail	Download	spice file	NSZXTT LMH65 52MA
LMH6552MAX/NOPB	69.761	SOIC NARROW	8	1	260	Detail	Download	spice file	NSZXTT LMH65 52MA
LMH6552SD/NOPB	17.85	LLP	8	1	260	Detail	Download	spice file	XYTT 6552
LMH6552SDX/NOPB	17.85	LLP	8	1	260	Detail	Download	spice file	XYTT 6552

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMH6552.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMH6552 is located at RoHS Status.

Design Tools

Title	Size	Date
Compatible High-Speed A/D Converters

Reference Design

RD-147 - Low IF Receiver Reference Design Board

CAD Symbols and Models Download LMH6552 CAD Symbols

Models spice file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH6552MA	VIP 10	0	13411	0	0	1245000	3	353272149
LMH6552MAX	VIP 10	0	13411	0	0	1245000	3	353272149
LMH6552SD	VIP 10	0	13411	0	0	1245000	3	353272149
LMH6552SDX	VIP 10	0	13411	0	0	1245000	3	353272149

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.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMH6552.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMH6552 is located at RoHS Status.