RoHS Compliance Information	Size in Kbytes	Date
LM111/LM211/LM311 Voltage Comparator	1089 Kbytes	19-Nov-04	View Online	Download	Receive via Email

Part Number

Package

Factory Lead Time

Models

Samples & Electronic Orders

Budgetary Pricing

Std Pack Size

Package Marking Format

Type

Pins

Spec.

MSL Rating

Peak Reflow

RoHS Report

CAD Symbols

Weeks

Qty

Qty

$US each

LM311M

SOIC NARROW

8

STD NOPB

1 1

235 260

RoHS

Download

Full production

N/A

1K+

$0.22

rail of 95

NSZXTT LM 311M

8 weeks

2500

LM311MX

SOIC NARROW

8

STD NOPB

1 1

235 260

RoHS

Download

Full production

N/A

1K+

$0.22

reel of 2500

NSZXTT LM 311M

8 weeks

7500

LM311N

MDIP

8

STD NOPB

1 1

NA NA

RoHS

Download

Full production

N/A

1K+

$0.25

rail of 40

NSUZXYTT LM 311N

8 weeks

5000

LM311H

TO-99

8

STD NOPB

1 1

NA NA

RoHS

Download

Full production

N/A

1K+

$3.30

box of 500

NSZXYTTE# LM311H

6 weeks

1000

LM311 MDA

Unpackaged Die

Full production

N/A

CALL

tray of N/A

-

N/A

N/A

LM311 MWA

Wafer

Lifetime buy

N/A

CALL

wafer jar of N/A

-

N/A

N/A

Obsolete Parts

General 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.

Reliability Metrics

Design Tools

Title	Size in Kbytes	Date
Amplifiers Selection Guide software for Windows	8 Kbytes	6-Mar-2007	View

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