LPV7215

580nA Rail-to-Rail Input and Output,1.8V,Push-Pull Output Comparator

General Description

The LPV7215is an ultra low-power comparator with a typical power supply current of 580nA.It has the best-in-class power supply current versus propagation delay performance available among National’s low-power comparators.The propagation delay is as low as 4.5microseconds with 100mV overdrive at 1.8V supply.

Designed to operate over a wide range of supply voltages,from 1.8V to 5.5V,the LPV7215,with guaranteed operation at 1.8V, 2.7V and 5.0V,is ideal for use in a variety of battery-powered applications.With rail-to-rail common mode voltage range,the LPV7215is well suited for single-supply operation.

Featuring a push-pull output stage,the LPV7215allows for operation with absolute minimum power consumption when driving any capacitive or resistive load.

With an operating temperature range of −40˚C to 125˚C,this comparator can be adopted for extreme temperature appli-cations.Available in a choice of space-saving packages,the LPV7215is ideal for use in handheld electronics and mobile phone applications.The LPV7215is manufactured with Na-tional’s advanced VIP50process.

Features

(Typical unless otherwise noted)n Ultra low power consumption 580nA n Wide supply voltage range 1.8V to 5.5V

n Propagation delay

4.5µs n Push-Pull output current drive 19mA

n Temperature range -40˚C to 125˚C

n Rail-to-rail input

n Tiny SOT23-5and SC70-5packages

Applications

n Laptop computers n Mobile phones n RC timers

n Alarm and monitoring circuits n Window comparators n

Multivibrators

Typical Application

20123601

Threshold Detector

20123602

Propagation Delay vs.Overdrive

PRELIMINARY

September 2005

LPV7215580nA Rail-to-Rail Input and Output,1.8V Push-Pull Output Comparator

©2005National Semiconductor Corporation DS201236www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.ESD Tolerance (Note 2)Human Body 2000V Machine Model 200V

V IN Differential

±2.5V

Supply Voltage (V +-V −)6V

Voltage at Input/Output pins V ++0.3V,V −−0.3V Storage Temperature Range −65˚C to +150˚C

Junction Temperature (Note 3)

+150˚C

Soldering Information

Infrared or Convection (20sec)235˚C Wave Soldering Lead Temp.(10sec)

260˚C

Operating Ratings (Note 1)

Temperature Range (Note 3)−40˚C to +125˚C

Supply Voltage (V +–V −)

1.8V to 5.5V

Package Thermal Resistance (θJA (Note 3))5-Pin SOT23234˚C/W 5-Pin SC70

456˚C/W

1.8V Electrical Characteristics

(Note 8)

Unless otherwise specified,all limits are guaranteed for T J =25˚C,V +=1.8V,V −=0V,and V CM =V +/2,V O =V −.Boldface limits apply at the temperature extremes.

Symbol Parameter

Conditions

Min (Note 5)

Typ (Note 4)

Max (Note 5)Units

I S

Supply Current

V CM =0.3V,T A =25˚C 580

5nA V CM =0.3V,−40˚C to 85˚C 681V CM =0.3V,−40˚C to 125˚C 980V CM =1.5V,T A =25˚C 790875V CM =1.5V,−40˚C to 85˚C 912V CM =1.5V,−40˚C to 125˚C

1155

V OS Input Offset Voltage V CM =0V V CM =1.8V ±0.3±3±4

mV TC V OS Input Offset Average Drift (Note 7)±2

µV/C I B Input Bias Current (Note 6)V CM =0.5V −5fA V CM =1.3V

I OS Input Offset Current 1fA CMRR Common Mode Rejection Ratio

V CM Stepped from 0V to 0.7V V CM Stepped from 1.2V to 1.8V 8090dB PSRR Power Supply Rejection Ratio V +=1.8V to 5V,V CM =0V 7593

dB

CMVR Input Common-Mode Voltage Range CMRR ≥50dB

1.8

0V A V Voltage Gain 120dB V O

Output Swing High I O =500µA 1.68V I O =1mA 1.54Output Swing Low

I O =−500µA 120mV I O =−1mA 260I OUT

Output Current Source 2.0 2.26mA Sink

2.7

3.1Propagation Delay (High to Low)Overdrive =10mV Overdrive =100mV 13

4.5µs Propagation Delay (Low to High)

Overdrive =10mV Overdrive =100mV 12.56.6µs

t rise

Rise Time

Overdrive =10mV

C L =30pF,R L =1M Ω80ns

Overdrive =100mV C L =30pF,R L =1M Ω

80

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1.8V Electrical Characteristics

(Note 8)(Continued)

Unless otherwise specified,all limits are guaranteed for T J =25˚C,V +=1.8V,V −=0V,and V CM =V +/2,V O =V −.Boldface limits apply at the temperature extremes.

Symbol Parameter

Conditions

Min (Note 5)

Typ (Note 4)Max (Note 5)

Units

t fall

Fall Time

Overdrive =10mV

C L =30pF,R L =1M Ω70ns

Overdrive =100mV C L =30pF,R L =1M Ω

70

2.7V Electrical Characteristics

(Note 8)

Unless otherwise specified,all limits are guaranteed for T J =25˚C,V +=2.7V,V −=0V,and V CM =V +/2,V O =V −.Boldface limits apply at the temperature extremes.

Symbol Parameter

Conditions

Min (Note 5)

Typ (Note 4)

Max (Note 5)Units

I S

Supply Current

V CM =0.3V,T A =25˚C 605

670nA V CM =0.3V,−40˚C to 85˚C 707V CM =0.3V,−40˚C to 125˚C 1005V CM =2.4V,T A =25˚C 815905V CM =2.4V,−40˚C to 85˚C 940V CM =2.4V,−40˚C to 125˚C

1220

V OS Input Offset Voltage V CM =0V ±0.3±3±4

mV V CM =2.7V TC V OS Input Offset Average Drift (Note 7)±1

µV/C I B Input Bias Current (Note 6)V CM =0.5V −5fA V CM =2.2V

I OS Input Offset Current 1fA CMRR Common Mode Rejection Ratio

V CM Stepped from 0V to 1.6V 8090dB V CM Stepped from 2.1V to 2.7V PSRR Power Supply Rejection Ratio V +=1.8V to 5V,V CM =0V 7593

dB

CMVR Input Common-Mode Voltage Range CMRR ≥50dB

2.7

0V A V Voltage Gain 120dB V O

Output Swing High I O =500µA 2.62V I O =1mA 2.54Output Swing Low

I O =−500µA 80mV I O =−1mA 160I OUT

Output Current Source 5.3 5.7mA

Sink

6

7.5Propagation Delay (High to Low)Overdrive =10mV 14.5µs

Overdrive =100mV 6Propagation Delay (Low to High)

Overdrive =10mV 15Overdrive =100mV 8t rise

Rise time

Overdrive =10mV

C L =30pF,R L =1M Ω90ns Overdrive =100mV C L =30pF,R L =1M Ω

85t fall

Fall time

Overdrive =10mV

C L =30pF,R L =1M Ω85ns Overdrive =100mV C L =30pF,R L =1M Ω

75

LPV7215

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5V Electrical Characteristics

(Note 8)

Unless otherwise specified,all limits are guaranteed for T J =25˚C,V +=5V,V −=0V,and V CM =V +/2,V O =V -.Boldface limits apply at the temperature extremes.

Symbol Parameter

Conditions

Min (Note 5)

Typ (Note 4)

Max (Note 5)Units

I S

Supply Current

V CM =0.3V,T A =25˚C 612

677nA V CM =0.3V,−40˚C to 85˚C 740V CM =0.3V,−40˚C to 125˚C 1240V CM =4.7V,T A =25˚C 825920V CM =4.7V,−40˚C to 85˚C 970V CM =4.7V,−40˚C to 125˚C

1450

V OS Input Offset Voltage V CM =0V ±0.3±3±4

mV V CM =5V TC V OS Input Offset Average Drift (Note 7)±1

µV/C I B Input Bias Current (Note 6)V CM =0.5V −5

fA V CM =4.5V

I OS Input Offset Current 1fA CMRR Common Mode Rejection Ratio

V CM Stepped from 0V to 3.9V 8090dB V CM Stepped from 4.4V to 5V PSRR Power Supply Rejection Ratio V +=1.8V to 5V,V CM =0V 7593

dB CMVR Input Common-Mode Voltage Range

CMRR ≥50dB 5

V

V O

Output Swing High I O =500µA 4.95V I O =1mA 4.9Output Swing Low

I O =−500µA 50mV I O =−1mA 100I OUT

Output Current Source 15.517mA Sink

16.719Propagation Delay (High to Low)Overdrive =10mV Overdrive =100mV 188µs Propagation Delay (Low to High)

Overdrive =10mV Overdrive =100mV 3013µs

t rise

Rise Time

Overdrive =10mV

C L =30pF,R L =1M Ω100ns

Overdrive =100mV C L =30pF,R L =1M Ω

100t fall

Fall Time

Overdrive =10mV

C L =30pF,R L =1M Ω115ns Overdrive =100mV C L =30pF,R L =1M Ω

95

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 Tables.Note 2:Human body model,1.5k Ωin series with 100pF.Machine model:0Ωin series with 200pF.

Note 3:The maximum power dissipation is a function of T J(MAX),θJA ,and T A .The maximum allowable power dissipation at any ambient temperature is P D =(T J(MAX)-T A )/θJA .All numbers apply for packages soldered directly onto a PC board at the time of characterization.Note 4:Typical values represent the most likely parametric norm.

Note 5:Limits are 100%production tested at 25˚C.Limits over the operating temperature range are guaranteed through correlations using statistical quality control (SQC)method.

Note 6:Positive current corresponds to current flowing into the device.

Note 7:Offset voltage average drift determined by dividing the change in V OS at temperature extremes into the total temperature change.

Note 8:Electrical table values apply only for factory testing conditions at the temperature indicated.Factory testing conditions result in very limited self-heating of the device.

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SC70/SOT23

20123698

Top View

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing

5-Pin SOT-23

LPV7215MF

C30A

1k Units Tape and Reel

MF05A LPV7215MFX3k Units Tape and Reel

5-Pin SC70

LPV7215MG

C37

1k Units Tape and Reel

MAA05A

LPV7215MGX3k Units Tape and Reel

LPV7215

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Physical Dimensions

inches (millimeters)unless otherwise noted

5-Pin SOT23

NS Package Number MF05A

5-Pin SC70

NS Package Number MAA05A

L P V 7215

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Notes

National does not assume any responsibility for use of any circuitry described,no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

For the most current product information visit us at www.national.com.

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NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION.As used herein:

1.Life support devices or systems are devices or systems

which,(a)are intended for surgical implant into the body,or

(b)support or sustain life,and whose failure to perform when

properly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in a significant injury to the user.2.A critical component is any component of a life support

device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system,or to affect its safety or effectiveness.

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