Features Operates from single 5V supply Input current: 150 nA max. over temperature Offset current: 20 nA max. over temperature Differential input voltage range: ±30V Power consumption: 135 mW at ±15V Description The LM111, LM211 and LM311 are voltage comparators that have input currents nearly a thousand times lower than devices like the LM106 or LM710. They are also designed to operate over a wider range of supply voltages: from standard ±15V op amp supplies down to the single 5V supply used for IC logic. Their output is compatible with RTL, DTL and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50V at currents as high as 50 mA. Both the inputs and the outputs of the LM111, LM211 or the LM311 can be isolated from system ground, and the output can drive loads referred to ground, the positive supply or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire OR'ed. Although slower than the LM106 and LM710 (200 ns response time vs 40 ns) the devices are also much less prone to spurious oscillations. The LM111 has the same pin configuration as the LM106 and LM710. The LM211 is identical to the LM111, except that its performance is specified over a -25°C to +85°C temperature range instead of -55°C to +125°C. The LM311 has a temperature range of 0°C to +70°C.

Typical Application *click for larger image	Connection Diagram *click for larger image
Typical Performance *click for larger image

Datasheets

Title		Size	Date	Other Language
	LM111 Voltage Comparator	1089 Kbytes	19-Nov-04

Application Notes

Title		Size	Date	Other Language
	AN-41: Application Note 41 Precision IC Comparator Runs from Plus 5V Logic Supply	150 Kbytes	2-Oct-02
	AN-46: Application Note 46	277 Kbytes	4-Nov-95

Other Technical Documents

Title		Type	Date
	An IC Voltage Comparator for High Impedance Circuitry	App Note	2002-10-01
	Microvolt Comparator	App Note	2002-10-02
	Circuit Techniques for Avoiding Oscillations in Comparator Applications	App Note	2002-10-02

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM111J-8 RoHS Status	CERDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 395 DIGI-KEY Worldwide 350 FARNELL Europe and Asia 44 NEWARK Americas 124 TAYLOR Americas 395	$7.10 each at 1K+ pcs	rail of 40
LM111H/NOPB LM111H RoHS Status	TO-99	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 313 DIGI-KEY Worldwide 573 FARNELL Europe and Asia 778 MOUSER Worldwide 431 TAYLOR Americas 313	$3.97 each at 1K+ pcs	box of 500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM111E-MLS	JL111SZA	NATIONAL SEMICONDUCTOR	06 Dec 2005
LM111E-SMD	LM111WG/883	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111E/883	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111H-MLS	NONE	NATIONAL SEMICONDUCTOR	21 Feb 2006
LM111H-SMD	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111HPQMLV	None	NATIONAL SEMICONDUCTOR	06 Sep 2005
LM111J-8-SMD	LM111J-8/883	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111J-8PQMLV	JL111SPA	NATIONAL SEMICONDUCTOR	06 Dec 2005
LM111W-MLS	JL111SHA	NATIONAL SEMICONDUCTOR	05 Mar 2008
LM111WG-SMD	NONE	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM111WGPQMLV	A111	NATIONAL SEMICONDUCTOR	06 Sep 2005
LM111WPQMLV	None	NATIONAL SEMICONDUCTOR	06 Sep 2005
LM111W/883	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008

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 LM111.

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 LM111 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM111J-8	1195.682	CERDIP	8	1	NA	Detail	Download	spice file	NSUZXYTT LM111J -8
LM111H/NOPB LM111H	969.917 971.007	TO-99	8	1 1	NA NA	Detail	Download	spice file	NSZXYTTE# LM111H

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 LM111.

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 LM111 is located at RoHS Status.

Design Tools

Title	Size	Date
Amplifiers Selection Guide software for Windows

CAD Symbols and Models Download LM111 CAD Symbols

Models spice file

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM111E-MLS	JL111SZA	NATIONAL SEMICONDUCTOR	06 Dec 2005
LM111E-SMD	LM111WG/883	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111E/883	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111H-MLS	NONE	NATIONAL SEMICONDUCTOR	21 Feb 2006
LM111H-SMD	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111HPQMLV	None	NATIONAL SEMICONDUCTOR	06 Sep 2005
LM111J-8-SMD	LM111J-8/883	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM111J-8PQMLV	JL111SPA	NATIONAL SEMICONDUCTOR	06 Dec 2005
LM111W-MLS	JL111SHA	NATIONAL SEMICONDUCTOR	05 Mar 2008
LM111WG-SMD	NONE	NATIONAL SEMICONDUCTOR	16 Nov 2008
LM111WGPQMLV	A111	NATIONAL SEMICONDUCTOR	06 Sep 2005
LM111WPQMLV	None	NATIONAL SEMICONDUCTOR	06 Sep 2005
LM111W/883	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008