Features Specified for VS = 5V, RL = 100Ω, AV = 10V/V LLP-8 package, unless specified –3dB bandwidth 900 MHz Input voltage noise 0.69 nV/ √Hz Input offset voltage max. over temperature ±0.8 mV Slew rate 1600 V/ μs HD2 @ f = 1MHz, 2VPP −90 dBc HD3 @ f = 1MHz, 2VPP −94 dBc Supply voltage range 2.7V to 5.5V Typical supply current 15.5 mA Selectable min. gain ≥4 or ≥10 V/V Enable Time 75 ns Output Current ±250 mA LLP-8 and SOT23-5 Packages Description The LMH6629 is a high-speed, ultra low-noise amplifier designed for applications requiring wide bandwidth with high gain and low noise such as in communication, test and measurement, optical and ultrasound systems. The LMH6629 operates on 2.7 to 5.5V supply with an input common mode range that extends below ground and outputs that swing to within 0.8V of the rails for ease of use in single supply applications. Heavy loads up to ±250 mA can be driven by high-frequency large signals with the LMH6629's –3dB bandwidth of 900 MHz and 1600 V/µs slew rate. The LMH6629 (LLP-8 package only) has user-selectable internal compensation for minimum gains of 4 or 10 controlled by pulling the COMP pin low or high, thereby avoiding the need for external compensation capacitors required in competitive devices. Compensation for the SOT23-5 package is internally set for a minimum stable gain of 10 V/V. The LLP-8 package also provides the power-down enable/ disable feature. The low-input noise (0.69nV/ √Hz and 2.6 pA/ √Hz), low distortion (HD2/ HD3 = −90 dBc/−94 dBc) and ultra-low DC errors (800 µV VOS maximum over temperature, ±0.45 µV/°C drift) allow precision operation in both AC- and DC-coupled applications. The LMH6629 is fabricated in National Semiconductor’s proprietary SiGe process and is available in a 3mm x 3mm 8-pin LLP, as well as the SOT23-5, package. Applications Instrumentation Amplifiers Ultrasound Pre-amps Wide-band Active Filters Opto-electronics Medical imaging systems Base-station Amplifiers Low-Noise Single Ended to Differential Conversion Trans-impedance amplifier

200MHzTransimpedance Amplifier

Typical Application *click for larger image 200MHzTransimpedance Amplifier	Connection Diagram *click for larger image SOT23 Connection Diagram *click for larger image LLP-8 Connection Diagram
Typical Performance *click for larger image Inverting Frequency Response

Parameters Values -3dB BW 900 MHz AvCL for -3dB BW 10 V/V Slew Rate 1600 Volts/usec Input OutputType Vcm to V-, Not R-R Out Supply Min 2.7 Volt Supply Max 5.5 Volt Supply Current Per Channel 15.5 mA PowerWise Rating 2 3.9 uA/MHz Channels 1 Channels Offset Voltage max, 25C 0.78 mV Max Input Bias Current 23000 nA Output Current 250 mA Voltage Noise 0.69 nV/root(Hz) Shut down Yes Feedback Type Voltage Av+10 BW 900 MHz HD 2nd -70 dB HD 3rd -82 dB Special Features Internal Compensation Control (for lower Av) Function Op Amp Gain Bandwidth 4000 MHz Temperature Min -40 deg C Temperature Max 125 deg C Automotive No PowerWise Yes

Datasheets

Title		Size	Date	Other Language
	LMH6629 Ultra-Low Noise, High-Speed Operational Amplifier with Shutdown	1095 Kbytes	1-Jun-11

Application Notes

Title		Size	Date	Other Language
	AN-1897: Application Note 1897 LMH6629 LLP-8 Amplifier Evaluation Board	3293 Kbytes	24-May-11
	OA-14: OA-14 Improving Amplifier Noise for High 3rd Intercept Amplifiers	296 Kbytes	1-Oct-02

Other Technical Documents

Title		Type	Date
	Improving Amplifier Noise for High 3rd Intercept Amplifiers	App Note	2002-10-01
	Using PSPICE to Analyze Amplifier Loop Stability--Part 1	External Article	2011-01-08
	Using PSPICE to Analyze Amplifier Loop Stability--Part 2	External Article	2011-01-13

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH6629MF/NOPB RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.88 each at 1K+ pcs	reel of 1000
LMH6629MFE/NOPB RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 250 DIGI-KEY Worldwide 343 MOUSER Worldwide 111	$1.88 each at 1K+ pcs	reel of 250
LMH6629MFX/NOPB RoHS Status	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.88 each at 1K+ pcs	reel of 3000
LMH6629SD/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 804 DIGI-KEY Worldwide 3366	$1.88 each at 1K+ pcs	reel of 1000
LMH6629SDE/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 250 AVNET-EM Worldwide 462 DIGI-KEY Worldwide 0 FARNELL Europe and Asia 114 MOUSER Worldwide 218 NEWARK Americas 114 TAYLOR Americas 463	$1.88 each at 1K+ pcs	reel of 250
LMH6629SDX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.88 each at 1K+ pcs	reel of 4500
LMH6629 MDC RoHS Status		Full production Lead Time: N/A	Contact your distributor	CALL	tray of N/A

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 LMH6629.

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 LMH6629 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH6629SDEVAL/NOPB	Evaluation Board for the LMH6629	Full production Lead Free (RoHS)	Distributor Region Qty AVNET-EM Worldwide 2 DIGI-KEY Worldwide 1 MOUSER Worldwide 3	$144.00 each	1
Description: The LMH6629 evaluation board is designed to aid in the characterization of National Semiconductors High Speed LMH6629 Low Noise Operational Amplifier. Use the evaluation board as a guide for high frequency layout and as a tool to aid in device testing and characterization. Contents: Assembled LMH6629SDEVAL Board LMH6629 AN-1897

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH730316/NOPB	LMH730316 Evaluation Board for High-Speed Single Op Amp in the 5-/6-Pin SOT-23 Package	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$30.00 each	1
Description: National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Op Amp that are offered in the 5-/6-Pin SOT-23 package. This 4 layer board is designed to improve speed and reduce harmonic distortion by careful placement and routing of components and traces. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit configuration. The performance can then be evaluated under the test conditions of your choice. Power supplies, analog signal source, and other measurement equipment shall be provided by the user. Features: Maximizes attainable speed and minimizes distortion products Accommodates various high-speed Op Amp Allows quick and easy evaluation Serves as reference design to aid in high-speed PCB layout Utilizes surface-mount components NOTE: IC samples are not shipped with the Evaluation PCB, but may be requested separately from the Order page in the Product Folder Evaluation Board User Manual Evaluation Board Design Files

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
LMH6629MF/NOPB	14.696 14.801	SOT-23	5	1	260	Detail	N/A	spice file	AE7A XTT
LMH6629MFE/NOPB	14.696 14.801	SOT-23	5	1	260	Detail	N/A	spice file	AE7A XTT
LMH6629MFX/NOPB	14.696 14.801	SOT-23	5	1	260	Detail	N/A	spice file	AE7A XTT
LMH6629SD/NOPB	20.736	LLP	8	3	260	Detail	N/A	spice file	ZXYTT L6629
LMH6629SDE/NOPB	20.736	LLP	8	3	260	Detail	N/A	spice file	ZXYTT L6629
LMH6629SDX/NOPB	20.736	LLP	8	3	260	Detail	N/A	spice file	ZXYTT L6629
LMH6629 MDC		Unpackaged Die				spice file	-

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 LMH6629.

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 LMH6629 is located at RoHS Status.

CAD Symbols and Models N/A

Models spice file

LMH6629 Op Amp Noise Figure Demo Loading video...

LMH6629 Op Amp Noise Figure Demo Date: 2010-05-14 Length: 0:02:56