Features (VS = 5V TA = 25°C, Typical values unless otherwise specified) Propagation delay @ 100 mV overdrive 2.9 ns Rise and fall times 0.6 ns Supply voltage 2.7V to 12V Supply current 6.8 mA Temperature range −40°C to 125°C LVDS output Description The LMH7220 is a high speed, low power comparator with an operating supply voltage range of 2.7V to 12V. The LMH7220 has a differential, LVDS output, driving 325 mV into a 100Ω symmetrical transmission line. The LMH7220 has a 2.9 ns propagation delay and 0.6 ns rise and fall times while the supply current is only 6.8 mA at 5V (load current excluded). The LMH7220 inputs have a voltage range that extends 200 mV below ground, allowing ground sensing applications. The LMH7220 is available in both the 6-Pin TSOT and SC-70 packages. These packages are ideal where space is a critical item. Applications Acquisition trigger Fast differential line receiver Pulse height analyzer Peak detector Pulse width modulator Remote threshold detection Oscilloscope triggering

Also Recommended LMH7322▲ For A Dual 700ps High Speed Comparator With LVDS/ RSPECL Outputs LMH7324▲ For A Quad 700ps High Speed Comparator With LVDS/ RSPECL Outputs

Typical Application *click for larger image	Connection Diagram *click for larger image
Typical Performance *click for larger image Propagation Delay vs Vcm

Parameters / Values	LMH7220	LMH7322	LMH7324
Response Time	0.0029 us	0.0007 us	0.0007 us
Output Bus	LVDS	LVDS/RSPECL	LVDS/RSPECL
Supply Min	2.7 Volt	2.7 Volt	5 Volt
Supply Max	12 Volt	12 Volt	12 Volt
Channels	1 Channels	2 Channels	4 Channels
Offset Voltage max, 25C	2.7 mV	8 mV	9.5 mV
Output Current	5 mA	50 mA	25 mA
Input Range	Vcm to V-	Vcm to V-	Vcm to V-
Supply Current Per Channel	7.5 mA	30 mA	25 mA
PowerWise Rating 3	22 uA x us	21 uA x us	18 uA x us
Max Input Bias Current	7000 nA	5000 nA	5000 nA
Special Features	LVDS Out	Adj Output Swing, Adj Hysteresis	LVDS/RSPECL Out
Temperature Min	-40 deg C	-40 deg C	-40 deg C
Temperature Max	125 deg C	125 deg C	85 deg C
Function	Comparator	Comparator	Comparator
PowerWise	Yes	Yes	Yes

Datasheets

Title		Size	Date	Other Language
	LMH7220 High Speed Comparator with LVDS Output	1050 Kbytes	29-May-08	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1534: Application Note 1534 Demo Board LMH7220 High Speed LVDS Comparator	1489 Kbytes	20-Oct-06	中文

Other Technical Documents

Title		Type	Date
	Generating Precision Clocks for Time- Interleaved ADCs	Signal Path Designer	2007-08-02

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH7220MG/NOPB RoHS Status	SC-70	Lifetime buy Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.15 each at 1K+ pcs	reel of 1000
LMH7220MGX/NOPB RoHS Status	SC-70	Lifetime buy Lead Time: 16 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.15 each at 1K+ pcs	reel of 3000
LMH7220MK/NOPB LMH7220MK RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 DIGI-KEY Worldwide 2248 FARNELL Europe and Asia 1456 MOUSER Worldwide 983 NEWARK Americas 326 TAYLOR Americas 1000	$2.15 each at 1K+ pcs	reel of 1000
LMH7220MKX/NOPB LMH7220MKX RoHS Status	TSOT	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.15 each at 1K+ pcs	reel of 3000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMH7220MG	LMH7220MK	NSC	25 Jun 2012
LMH7220MGX	LMH7220MKX	NSC	25 Jun 2012

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 LMH7220.

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 LMH7220 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH730220/NOPB	Evaluation Board for High-Speed Single LVDS Comparator in the 6-Pin TSOT Package	Full production Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 1	$14.00 each	1
Description: National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed LVDS Comparator that are offered in the 6-Pin TSOT package. 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: Accommodates various high-speed LVDS Comparator 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
LMH7220MG/NOPB	7.64	SC-70	6	1	260	Detail	Download	N/A	C38 XTT
LMH7220MGX/NOPB	7.64	SC-70	6	1	260	Detail	Download	N/A	C38 XTT
LMH7220MK/NOPB LMH7220MK	13.726 13.851	TSOT	6	1 1	260 260	Detail	Download	N/A	C29A XTT
LMH7220MKX/NOPB LMH7220MKX	13.726 13.851	TSOT	6	1 1	260 260	Detail	Download	N/A	C29A XTT

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 LMH7220.

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 LMH7220 is located at RoHS Status.

CAD Symbols and Models Download LMH7220 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH7220MG	VIP 10	0	13411	0	0	1245000	3	353272149
LMH7220MGX	VIP 10	0	13411	0	0	1245000	3	353272149
LMH7220MK	VIP 10	0	13411	0	0	1245000	3	353272149
LMH7220MKX	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 LMH7220.

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 LMH7220 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMH7220MG	LMH7220MK	NSC	25 Jun 2012
LMH7220MGX	LMH7220MKX	NSC	25 Jun 2012