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LMC7211 Tiny CMOS Comparator with Rail-to-Rail Input and Push-Pull Output

January 26, 2010

LMC7211

Tiny CMOS Comparator with Rail-to-Rail Input and Push-

Pull Output

General Description

The LMC7211 is a micropower CMOS comparator available

in the space saving SOT23-5 package. This makes the com-

parator ideal for space and weight critical designs. The

LMC7211 is supplied in two offset voltage grades, 5 mV and

15 mV.

The main benefits of the Tiny package are most apparent in

small portable electronic devices, such as mobile phones,

pagers, notebook computers, personal digital assistants, and

PCMCIA cards. The rail-to-rail input voltage makes the

LMC7211 a good choice for sensor interfacing, such as light

detector circuits, optical and magnetic sensors, and alarm

and status circuits.

The Tiny Comparator's outside dimensions (length x width x

height) of 3.05mm x 3.00mm x 1.43mm allow it to fit into tight

spaces on PC boards.

See the LMC7221 for a comparator with an open-drain output.

Features

■

Tiny SOT 23-5 package saves space

Package is less than 1.43 mm thick

Guaranteed specs at 2.7V, 5V, 15V supplies

Typical supply current 7

μA

at 5V

Response time of 4

μs

at 5V

Push-pull output

Input common-mode range beyond V− and V+

Low input current

Applications

■

Battery Powered Products

Notebooks and PDAs

PCMCIA cards

Mobile Communications

Alarm and Security circuits

Direct Sensor Interface

Replaces amplifiers used as comparators with better

performance and lower current

Connection Diagrams

8-Pin SO-8

5-Pin SOT23-5

1233701

1233702

Top View

12337

www.national.com

LMC7211

Absolute Maximum Ratings

(Note

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

ESD Tolerance (Note

2 kV

Differential Input Voltage

) +0.3V to (−V

)−0.3V

Voltage at Input/Output Pin

) + 0.3V to (−V

)−0.3V

Supply Voltage (V

–V

−

)

16V

Current at Input Pin (Note

±5 mA

Current at Output Pin

(Note

3, Note 8)

Current at Power Supply Pin

Lead Temperature

(soldering, 10 sec)

±30 mA

40 mA

260°C

Storage Temperature Range

Junction Temperature

(Note

−65°C to +150°C

150°C

(Note

2.7

≤

15V

−40°C

≤

+85°C

Operating Ratings

Supply Voltage

Junction Temperature Range

LMC7211AI, LMC7211BI

Thermal Resistance (θ

)

SO-8 Package,

8-Pin Surface Mount

M05A Package,

5-Pin Surface Mount

180°C/W

325°C/W

2.7V Electrical Characteristics

Unless otherwise specified, all limits guaranteed for T

= 25°C, V

= 2.7V, V

−

= 0V, V

= V

= V+/2.

Boldface

limits apply at the

temperature extremes.

Symbol

TCV

Parameter

Input Offset Voltage

Temperature Drift

Input Offset Voltage

Average Drift

CMRR

PSRR

CMVR

Input Current

Input Offset Current

Common Mode

Rejection Ratio

Power Supply

Rejection Ratio

Voltage Gain

Input Common-Mode

Voltage Range

CMRR > 55 dB

Output Voltage High

Output Voltage Low

Supply Current

load

= 2.5 mA

load

= 2.5 mA

OUT

= Low

100

3.0

−0.3

2.5

0.2

2.9

2.7

−0.2

0.0

2.4

2.3

0.3

0.4

2.9

2.7

−0.2

0.0

2.4

2.3

0.3

0.4

min

max

min

max

μA

max

2.7V

≤

15V

≤

2.7V

0.04

0.02

(Note

10)

3.3

μV/Month

Conditions

Typ

(Note

1.0

LMC7211AI

Limit

(Note

LMC7211BI

Limit

(Note

Units

max

μV/°C

www.national.com

LMC7211

5.0V and 15.0V Electrical Characteristics

Unless otherwise specified, all limits guaranteed for T

= 25°C, V

= 5.0V and 15V, V

−

= 0V, V

= V

/2.

Boldface

limits

apply at the temperature extremes.

Symbol

TCV

Parameter

Input Offset Voltage

Temperature Drift

Input Offset Voltage

Average Drift

CMRR

PSRR

CMVR

Input Current

Input Offset Current

Common Mode

Rejection Ration

Power Supply

Rejection Ratio

Voltage Gain

Input Common-Mode

Voltage Range

V+ = 5.0V

CMRR > 55 dB

V+ = 5.0V

CMRR > 55 dB

V+ = 15.0V

CMRR > 55 dB

V+ = 15.0V

CMRR > 55 dB

Output Voltage High

V+ = 5V

load

= 5 mA

V+ = 15V

load

= 5 mA

Output Voltage Low

V+ = 5V

load

= 5 mA

V+ = 15V

load

= 5 mA

Supply Current

Short Circuit Current

OUT

= Low

Sourcing

Sinking (Note

0.2

14.8

0.2

100

5.3

−0.3

15.3

−0.3

4.8

5.2

5.0

−0.2

0.0

15.2

15.0

−0.2

0.0

4.6

4.45

14.6

14.45

0.40

0.55

0.40

0.55

5.2

5.0

−0.2

0.0

15.2

15.0

−0.2

0.0

4.6

4.45

14.6

14.45

0.40

0.55

0.40

0.55

min

max

min

max

min

max

μA

max

V+ = 5.0V

V+ = 15.0V

≤

10V

= 5V

= 15V

= 5V

= 15V

Conditions

Typ

(Note

1.0

4.0

3.3

4.0

0.04

0.02

μV/Month

LMC7211AI

Limit

(Note

LMC7211BI

Limit

(Note

Units

max

μV/°C

www.national.com

LMC7211

AC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for T

= 25°C, V

= 5V, V

−

= 0V, V

= V

/2.

Boldface

limits apply at the

temperature extreme.

Symbol

rise

fall

PHL

Parameter

Rise Time

Fall Time

Propagation Delay

(High to Low)

(Note

11)

Conditions

f = 10 kHz, Cl = 50 pF,

Overdrive = 10 mV (Note

f = 10 kHz, Cl = 50 pF,

Overdrive = 10 mV (Note

f = 10 kHz,

Cl = 50 pF

(Note

V+ = 2.7V,

f = 10 kHz,

Cl = 50 pF

(Note

PLH

Propagation Delay

(Low to High)

(Note

11)

f = 10 kHz,

Cl = 50p

(Note

V+ = 2.7V,

f = 10 kHz,

Cl = 50 pF

(Note

Note 1:

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2:

Human body model, 1.5 kΩ in series with 100 pF.

Note 3:

Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the

maximum allowed junction temperature of 150°C. Output currents in excess of ±30 mA over long term may adversely affect reliability.

Note 4:

The maximum power dissipation is a function of T

J(max)

, θ

, and T

. The maximum allowable power dissipation at any ambient temperature is

= (T

J(max)

− T

)/θ

.All numbers apply for packages soldered directly into a PC board.

Note 5:

Typical values represent the most likely parametric norm.

Note 6:

All limits are guaranteed by testing or statistical analysis.

Note 7:

Limiting input pin current is only necessary for input voltages that exceed absolute maximum input voltage rating.

Note 8:

Do not short circuit output to V+, when V+ is greater than 12V or reliability will be adversely affected.

Note 9:

includes the probe and jig capacitance.

Note 10:

Input offset voltage average drift is calculated by dividing the accelerated operating life V

drift by the equivalent operational time. This represents

worst case input conditions and includes the first 30 days of drift.

Note 11:

Input step voltage for propagation delay measurement is 2V.

Typ

(Note

0.3

LMC7211AI

Limit

(Note

LMC7211BI

Limit

(Note

Units

μs

10 mV

100 mV

10 mV

100 mV

μs

10 mV

100 mV

10 mV

100 mV

μs

Ordering Information

Package

Ordering

Information

LMC7211AIM

8-Pin SO-8

LMC7211AIMX

LMC7211BIM

LMC7211BIMX

LMC7211AIM5

5-Pin SOT 23-5

LMC7211AIM5X

LMC7211BIM5

LMC7211BIM5X

NSC Drawing

Number

M08A

MF05A

Package

Marking

LM7211AIM

LM7211BIM

C00A

C00B

Rails

2.5k Units Tape and Reel

Rails

2.5k Units tape and Reel

1k Units Tape and Reel

3k Units Tape and Reel

1k Units Tape and Reel

3k Units Tape and Reel

Transport Media

www.national.com

LMC7211

Typical Performance Characteristics

Supply Current vs. Supply Voltage

Single Supply T

= 25°C unless specified

Supply Current vs. Temperature while Sourcing

1233715

1233716

Supply Current vs. Temperature while Sinking

Output Sourcing Current vs. Supply Voltage

1233717

1233718

Output Sinking Current vs. Supply Voltage

Output Sourcing Current vs. Output Voltage @ 5V

1233719

1233720

www.national.com

参数对比

与LMC7211BIM5/NOPB相近的元器件有：LMC7211AIM5/NOPB、LMC7211AIM5X/NOPB、LMC7211AIM/NOPB、LMC7211AIMX/NOPB、LMC7211BIM5X/NOPB、LMC7211BIM/NOPB、LMC7211BIMX/NOPB。描述及对比如下：

型号	LMC7211BIM5/NOPB	LMC7211AIM5/NOPB	LMC7211AIM5X/NOPB	LMC7211AIM/NOPB	LMC7211AIMX/NOPB	LMC7211BIM5X/NOPB	LMC7211BIM/NOPB	LMC7211BIMX/NOPB
描述	IC COMPARATOR, 18000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO5, 3.05 X 3 MM, 1.43 MM HEIGHT, LEAD FREE, QSOT-23, 5 PIN, Comparator	IC COMPARATOR, 8000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO5, 3.05 X 3 MM, 1.43 MM HEIGHT, LEAD FREE, QSOT-23, 5 PIN, Comparator	IC COMPARATOR, 8000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO5, 3.05 X 3 MM, 1.43 MM HEIGHT, LEAD FREE, QSOT-23, 5 PIN, Comparator	IC COMPARATOR, 8000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator	IC COMPARATOR, 8000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator	IC COMPARATOR, 18000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO5, 3.05 X 3 MM, 1.43 MM HEIGHT, LEAD FREE, QSOT-23, 5 PIN, Comparator	IC COMPARATOR, 18000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator	IC COMPARATOR, 18000 uV OFFSET-MAX, 4000 ns RESPONSE TIME, PDSO8, SOIC-8, Comparator
是否Rohs认证	符合	符合	符合	符合	符合	符合	符合	符合
零件包装代码	SOT-23	SOT-23	SOT-23	SOIC	SOIC	SOT-23	SOIC	SOIC
包装说明	LSSOP, TSOP5/6,.11,37	LSSOP, TSOP5/6,.11,37	LSSOP, TSOP5/6,.11,37	SOP, SOP8,.25	SOP, SOP8,.25	LSSOP, TSOP5/6,.11,37	SOP, SOP8,.25	SOP, SOP8,.25
针数	5	5	5	8	8	5	8	8
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant
ECCN代码	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
放大器类型	COMPARATOR	COMPARATOR	COMPARATOR	COMPARATOR	COMPARATOR	COMPARATOR	COMPARATOR	COMPARATOR
最大平均偏置电流 (IIB)	0.001 µA	0.001 µA	0.001 µA	0.001 µA	0.001 µA	0.001 µA	0.001 µA	0.001 µA
最大输入失调电压	18000 µV	8000 µV	8000 µV	8000 µV	8000 µV	18000 µV	18000 µV	18000 µV
JESD-30 代码	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5	R-PDSO-G8	R-PDSO-G8	R-PDSO-G5	R-PDSO-G8	R-PDSO-G8
JESD-609代码	e3	e3	e3	e3	e3	e3	e3	e3
长度	2.92 mm	2.92 mm	2.92 mm	4.9 mm	4.9 mm	2.92 mm	4.9 mm	4.9 mm
湿度敏感等级	1	1	1	1	1	1	1	1
功能数量	1	1	1	1	1	1	1	1
端子数量	5	5	5	8	8	5	8	8
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
输出类型	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL	PUSH-PULL
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	LSSOP	LSSOP	LSSOP	SOP	SOP	LSSOP	SOP	SOP
封装等效代码	TSOP5/6,.11,37	TSOP5/6,.11,37	TSOP5/6,.11,37	SOP8,.25	SOP8,.25	TSOP5/6,.11,37	SOP8,.25	SOP8,.25
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE
峰值回流温度（摄氏度）	260	260	260	260	260	260	260	260
电源	2.7/15 V	2.7/15 V	2.7/15 V	2.7/15 V	2.7/15 V	2.7/15 V	2.7/15 V	2.7/15 V
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
标称响应时间	4000 ns	4000 ns	4000 ns	4000 ns	4000 ns	4000 ns	4000 ns	4000 ns
座面最大高度	1.45 mm	1.45 mm	1.45 mm	1.75 mm	1.75 mm	1.45 mm	1.75 mm	1.75 mm
最大压摆率	0.018 mA	0.018 mA	0.018 mA	0.018 mA	0.018 mA	0.018 mA	0.018 mA	0.018 mA
供电电压上限	16 V	16 V	16 V	16 V	16 V	16 V	16 V	16 V
标称供电电压 (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V
表面贴装	YES	YES	YES	YES	YES	YES	YES	YES
技术	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子面层	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
端子节距	0.95 mm	0.95 mm	0.95 mm	1.27 mm	1.27 mm	0.95 mm	1.27 mm	1.27 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
处于峰值回流温度下的最长时间	40	NOT SPECIFIED	40	40	40	40	40	40
宽度	1.65 mm	1.65 mm	1.65 mm	3.9 mm	3.9 mm	1.65 mm	3.9 mm	3.9 mm
厂商名称	National Semiconductor（TI ）	-	-	-	National Semiconductor（TI ）	National Semiconductor（TI ）	National Semiconductor（TI ）	National Semiconductor（TI ）