LM211,LM311引脚资料_lm211引脚功能参数

LM211,LM311

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TL/H/5704

LM111/LM211/LM311 Voltage Comparator

December 1994

LM111/LM211/LM311 Voltage Comparator

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 stan-

dard

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 per-

formance is specified over a

Cto

C temperature

range instead of

Cto

125

C. The LM311 has a tem-

perature range of 0

Cto

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

Typical Applications**

**Note: Pin connections shown on schematic di-

agram and typical applications are for

H08 metal can package.

Offset Balancing

Strobing

Note: Do Not

Ground Strobe

Pin. Output is

turned off when

current is pulled

from Strobe Pin.

Increasing Input Stage Current*

*Increases typical common

mode slew from 7.0V/ms

to 18V/ms.

Detector for Magnetic Transducer Digital Transmission Isolator

Relay Driver with Strobe

*Absorbs inductive

kickback of relay and

protects IC from

severe voltage

transients on

line.

Note: Do Not Ground Strobe Pin.

Strobing off Both Input* and Output Stages

*Typical input current is

50 pA with inputs strobed off.

Note: Do Not Ground Strobe Pin.

TL/H/5704– 1

1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.

Absolute Maximum Ratings for the LM111/LM211

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

(Note 7)

Total Supply Voltage (V

) 36V

Output to Negative Supply Voltage (V

) 50V

Ground to Negative Supply Voltage (V

) 30V

Differential Input Voltage

30V

Input Voltage (Note 1)

15V

Output Short Circuit Duration 10 sec

Operating Temperature Range LM111

Cto125

LM211

Cto85

Lead Temperature (Soldering, 10 sec) 260

Voltage at Strobe Pin V

Soldering Information

Dual-In-Line Package

Soldering (10 seconds)ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ260

Small Outline Package

Vapor Phase (60 seconds)ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ215

Infrared (15 seconds) ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ220

See AN-450 ‘‘Surface Mounting Methods and Their Effect

on Product Reliability’’ for other methods of soldering sur-

face mount devices.

ESD Rating (Note 8) 300V

Electrical Characteristics for the LM111 and LM211 (Note 3)

Parameter Conditions Min Typ Max Units

Input Offset Voltage (Note 4) T

C, R

50k 0.7 3.0 mV

Input Offset Current T

C 4.0 10 nA

Input Bias Current T

C 60 100 nA

Voltage Gain T

C 40 200 V/mV

Response Time (Note 5) T

C 200 ns

Saturation Voltage V

5 mV, I

OUT

50 mA

0.75 1.5 V

Strobe ON Current (Note 6) T

C 2.0 5.0 mA

Output Leakage Current V

5 mV, V

OUT

35V

0.2 10 nA

C, I

STROBE

3mA

Input Offset Voltage (Note 4) R

50 k 4.0 mV

Input Offset Current (Note 4) 20 nA

Input Bias Current 150 nA

Input Voltage Range V

15V, V

15V, Pin 7

14.5 13.8,-14.7 13.0 V

Pull-Up May Go To 5V

Saturation Voltage V

4.5V, V

0.23 0.4 V

6 mV, I

OUT

8mA

Output Leakage Current V

5 mV, V

OUT

35V 0.1 0.5 mA

Positive Supply Current T

C 5.1 6.0 mA

Negative Supply Current T

C 4.1 5.0 mA

Note 1: This rating applies for

15 supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the

negative supply voltage or 30V below the positive supply, whichever is less.

Note 2: The maximum junction temperature of the LM111 is 150

C, while that of the LM211 is 110

C. For operating at elevated temperatures, devices in the H08

package must be derated based on a thermal resistance of 165

C/W, junction to ambient, or 20

C/W, junction to case. The thermal resistance of the dual-in-line

package is 110

C/W, junction to ambient.

Note 3: These specifications apply for V

15V and Ground pin at ground, and

125

C, unless otherwise stated. With the LM211, however, all

temperature specifications are limited to

C. The offset voltage, offset current and bias current specifications apply for any supply voltage from a

single 5V supply up to

15V supplies.

Note 4: The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply witha1mAload. Thus,

these parameters define an error band and take into account the worst-case effects of voltage gain and R

Note 5: The response time specified (see definitions) is for a 100 mV input step with 5 mV overdrive.

Note 6: This specification gives the range of current which must be drawn from the strobe pin to ensure the output is properly disabled. Do not short the strobe pin

to ground; it should be current driven at 3 to 5 mA.

Note 7: Refer to RETS111X for the LM111H, LM111J and LM111J-8 military specifications.

Note 8: Human body model, 1.5 kX in series with 100 pF.

Absolute Maximum Ratings for the LM311

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

Total Supply Voltage (V

) 36V

Output to Negative Supply Voltage V

) 40V

Ground to Negative Supply Voltage V

) 30V

Differential Input Voltage

30V

Input Voltage (Note 1)

15V

Power Dissipation (Note 2) 500 mW

ESD Rating (Note 7) 300V

Output Short Circuit Duration 10 sec

Operating Temperature Range 0

to 70

Storage Temperature Range

Cto150

Lead Temperature (soldering, 10 sec) 260

Voltage at Strobe Pin V

Soldering Information

Dual-In-Line Package

Soldering (10 seconds)ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ260

Small Outline Package

Vapor Phase (60 seconds)ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ215

Infrared (15 seconds) ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ220

See AN-450 ‘‘Surface Mounting Methods and Their Effect

on Product Reliability’’ for other methods of soldering sur-

face mount devices.

Electrical Characteristics for the LM311 (Note 3)

Parameter Conditions Min Typ Max Units

Input Offset Voltage (Note 4) T

C, R

50k 2.0 7.5 mV

Input Offset Current (Note 4) T

C 6.0 50 nA

Input Bias Current T

C 100 250 nA

Voltage Gain T

C 40 200 V/mV

Response Time (Note 5) T

C 200 ns

Saturation Voltage V

10 mV, I

OUT

50 mA

0.75 1.5 V

Strobe ON Current (Note 6) T

C 2.0 5.0 mA

Output Leakage Current V

10 mV, V

OUT

35V

C, I

STROBE

3 mA 0.2 50 nA

Pin 1

Input Offset Voltage (Note 4) R

50K 10 mV

Input Offset Current (Note 4) 70 nA

Input Bias Current 300 nA

Input Voltage Range

14.5 13.8,

14.7 13.0 V

Saturation Voltage V

4.5V, V

0.23 0.4 V

10 mV, I

OUT

8mA

Positive Supply Current T

C 5.1 7.5 mA

Negative Supply Current T

C 4.1 5.0 mA

Note 1: This rating applies for

15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is equal to the

negative supply voltage or 30V below the positive supply, whichever is less.

Note 2: The maximum junction temperature of the LM311 is 110

C. For operating at elevated temperature, devices in the H08 package must be derated based on a

thermal resistance of 165

C/W, junction to ambient, or 20

C/W, junction to case. The thermal resistance of the dual-in-line package is 100

C/W, junction to

ambient.

Note 3: These specifications apply for V

15V and Pin 1 at ground, and 0

C, unless otherwise specified. The offset voltage, offset current and

bias current specifications apply for any supply voltage from a single 5V supply up to

15V supplies.

Note 4: The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with 1 mA load. Thus, these

parameters define an error band and take into account the worst-case effects of voltage gain and R

Note 5: The response time specified (see definitions) is for a 100 mV input step with 5 mV overdrive.

Note 6: This specification gives the range of current which must be drawn from the strobe pin to ensure the output is properly disabled. Do not short the strobe pin

to ground; it should be current driven at 3 to 5 mA.