NSC LMV339MX, LMV339MTX, LMV339MT, LMV339M, LMV331M7X Datasheet

August 1999

LMV331 Single / LMV393 Dual / LMV339 Quad
General Purpose, Low Voltage, TinyPack Comparators

LMV331 Single / LMV393 Dual / LMV339 Quad General Purpose, Low Voltage, TinyPack

Comparators

General Description

The LMV393 and LMV339 are low voltage (2.7-5V) versions
of the dual and quad comparators, LM393/339, which are
specified at 5-30V. The LMV331 is the single version, which
is availableinspace saving SC70-5 and SOT23-5 packages.
SC70-5 is approximately half the size of SOT23-5.

The LMV393 is available in 8-pin SOICand 8-pin MSOP.The
LMV339 is available in 14-pin SOIC and 14-pin TSSOP.

The LMV331/393/339 is the most cost-effective solution
where space, low voltage, low power and price are the pri­mary specification in circuit design for portable consumer
products. They offer specifications that meet or exceed the
familiar LM393/339 at a fraction of the supply current.

The chips are built with National’s advanced Submicron
Silicon-Gate BiCMOS process. The LMV331/393/339 have
bipolar input and output stages for improved noise perfor­mance.

Connection Diagrams

5-Pin SC70-5/SOT23-5

DS100080-1

Top View

Features

(For 5V Supply, Typical Unless Otherwise Noted)

n Space Saving SC70-5 Package (2.0 x 2.1 x 1.0

mm)

n Space Saving SOT23-5 Package (3.00 x 3.01 x

1.43 mm)

n Guaranteed 2.7V and 5V Performance
n Industrial Temperature Range −40˚C to +85˚C
n Low Supply Current 60µA/Channel
n Input Common Mode Voltage Range Includes Ground
n Low Output Saturation Voltage 200 mV

Applications

n Mobile Communications
n Notebooks and PDA’s
n Battery Powered Electronics
n General Purpose Portable Device
n General Purpose Low Voltage Applications

14-Pin SO/TSSOP

8-Pin SO/MSOP

Top View

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Top View

© 1999 National Semiconductor Corporation DS100080 www.national.com

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Ordering Information

Temperature Range Packaging

Package

5-pin SC70-5 LMV331M7 C13 1k Units Tape and Reel MAA05

5-pin SOT23-5 LMV331M5 C12 1k Units Tape and Reel MA05B

8-pin Small Outline LMV393M LMV393M Rails

8-pin MSOP LMV393MM LMV393 1k UnitsTape and Reel

14-pin Small Outline LMV339M LMV339M Rails

14-pin TSSOP LMV339MT LMV339MT Rails

Industrial

−40˚C to +85˚C

LMV331M7X C13 3k Units Tape and Reel

LMV331M5X C12 3k Units Tape and Reel

LMV393MX LMV393M 2.5k Units Tape and Reel

LMV393MMX LMV393 3.5k Units Tape and Reel

LMV339MX LMV339M 2.5k Units Tape and Reel

LMV339MTX LMV339MT 2.5k Units Tape and Reel

Marking

Transport

Media

NSC

Drawing

M08A

MUA08A

M14A

MTC14

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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 Model
LMV331/ 393/ 339 800V

Machine Model LMV331/339/393 120V
Differential Input Voltage
Voltage on any pin

(referred to V

−

pin)

Soldering Information

Infrared or Convection (20 sec) 235˚C
Storage Temp. Range −65˚C to +150˚C
Junction Temperature (Note 3) 150˚C

±

Supply Voltage

5.5V

Operating Ratings(Note 1)

Supply Voltage 2.7V to 5.0V
Temperature Range

LMV393, LMV339,
LMV331

Thermal Resistance (θ

M Package, 8-pin Surface
Mount

M Package, 14-pin Surface
Mount

MTC Package, 14-pin
TSSOP

MAA05 Package, 5-pin
SC70-5

M05A Package 5 -pin
SOT23-5

MM Package, 8-pin Mini

)

JA

−40˚C ≤ T

≤ +85˚C

J

190˚C/W

145˚C/W

155˚C/W

478˚C/W

265˚C/W

235˚C/W

Surface Mount

2.7V DC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, V+=2.7V, V−=0V. Boldface limits apply at the temperature
extremes.

Symbol Parameter Conditions Typ

V

OS

TCV

I

B

I

OS

V

CM

Input Offset Voltage

Input Offset Voltage

OS

Average Drift
Input Bias Current

Input Offset Current

Input Voltage Range −0.1 V

(Note 4)

1.7 7

2.0 V

V

SAT

I

O

I

S

Saturation Voltage I

≤ 1mA 200 mV

sink

Output Sink Current VO≤ 1.5V 23 5 mA min
Supply Current LMV331 40 100 µA max

LMV393
Both Comparators

LMV339

140 200 µA max

All four Comparators

Output Leakage Current .003 1 µA max

LMV331/

393/339

Limit

(Note 5)

5 µV/˚C

10

5

250

400

50

150

70 140 µA max

Units

nA max
nA max

mV

max

2.7V AC Electrical Characteristics

TJ= 25˚C, V+=2.7V, R

Symbol Parameter Conditions Typ

t

PHL

t

PLH

Propagation Delay (High to Low) Input Overdrive=10 mV 1000 ns

Propagation Delay (Low to High) Input Overdrive=10 mV 500 ns

=

5.1 kΩ,V−=0V.

L

(Note 4)

Input Overdrive=100 mV 350 ns

Input Overdrive=100 mV 400 ns

Units

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5V DC Electrical Characteristics

Unless otherwise specified, all limits guaranteed for TJ= 25˚C, V+=5V, V−=0V. Boldface limits apply at the temperature
extremes.

Symbol Parameter Conditions Typ

V

OS

TCV

I

B

I

OS

V

CM

Input Offset Voltage 1.7 7

Input Offset Voltage

OS

Average Drift
Input Bias Current

Input Offset Current

Input Voltage Range −0.1 V

(Note 4)

4.2 V

A

V

V

sat

I

O

I

S

Voltage Gain 50 20 V/mV min
Saturation Voltage I

≤ 4 mA 200 400

sink

Output Sink Current VO≤ 1.5V 84 10 mA
Supply Current LMV331 60 120

LMV393

100 200

Both Comparators
LMV339

170 300

All four Comparators

Output Leakage Current .003 1 µA max

5 µV/˚C

25

2

LMV331/

393/339

Limit

(Note 5)

9

250

400

50

150

700

150

250

350

Units

mV

max

nA max
nA max

mV

max

µA max

µA max

µA max

5V AC Electrical Characteristics

TJ= 25˚C, V+=5V, R

Symbol Parameter Conditions Typ

t

PHL

t

PLH

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, 1.5kΩ in series with 100 pF. Machine model, 200Ω in series with 100 pF.
Note 3: The maximum power dissipation is a functionof T

-TA)/θJA. All numbers apply for packages soldered directly into a PC board.

Note 4: Typical Values represent the most likely parametric norm.
Note 5: All limits are guaranteed by testing or statistical analysis.

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Propagation Delay (High to Low) Input Overdrive=10 mV 600 ns

Propagation Delay (Low to High) Input Overdrive=10 mV 450 ns

=

5.1 kΩ,V−=0V.

L

(Note 4)

Input Overdrive=100 mV 200 ns

Input Overdrive=100 mV 300 ns

, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is P

J(max)

D

Units

=

(T

J(max)

Typical Performance Characteristics Unless otherwise specified, V

Supply Current vs
Supply Voltage Output High
(LMV331)

Supply Current vs
Supply Voltage Output Low
(LMV331)

Output Voltage vs
Output Current at 5V Supply

=

+5V, single supply, T

S

=

25˚C

A

Output Voltage vs
Output Current
at 2.7 Supply

Response Time for
Input Overdrive
Positive Transition

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Input Bias Current vs
Supply Voltage

Response Time vs
Input Overdrives
Negative Transition

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DS100080-37

Response Time vs
Input Overdrives
Negative Transition

DS100080-42

Response Time for
Input Overdrive
Positive Transition

DS100080-43

DS100080-41

DS100080-40

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Simplified Schematic

DS100080-47

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Application Circuits

Basic Comparator

A basic comparator circuit is used for converting analog sig­nals to a digital output. The LMV331/393/339 have an
open-collector output stage, which requires a pull-up resistor
to a positive supply voltage for the output to switch properly.
When the internal output transistor is off, the output voltage
will be pulled up to the external positive voltage.

The output pull-up resistor should be chosen high enough so
as to avoid excessive power dissipation yet low enough to
supply enough drive to switch whatever load circuitry is used
on the comparator output. On the LMV331/393/339 the
pull-up resistor should range between 1k to 10kΩ.

The comparator compares the input voltage (V
non-inverting pin to the reference voltage (V
ing pin. If V
saturation voltage. On the other hand, if V
V

ref

is less than V

in

, the output voltage (Vo)isatthe

ref

, the output voltage (Vo)isatV

.

cc.

)atthe

in

) at the invert-

ref

is greater than

in

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FIGURE 1. Basic Comparator

Comparator with Hysteresis

The basic comparator configuration may oscillate or produce
a noisy output if the applied differential input voltage is near
the comparator’s offset voltage. This usually happens when
the input signal is moving very slowly across the compara­tor’s switching threshold. This problem can be prevented by
the addition of hysteresis or positive feedback.

Inverting Comparator with Hysteresis

The inverting comparator with hysteresis requires a three re­sistor network that are referenced to the supply voltage V
of the comparator. When Vin at the inverting input is less
than V

, the voltage at the non-inverting node of the com-

a

parator (V
assume V
sistors can be represented as R
lower input trip voltage V

<

Va), the output voltage is high (for simplicity

in

switches as high as Vcc). The three network re-

o

//R3in series with R2. The

1

is defined as

a1

cc

When Vinis greater than Va (VinVa), the output voltage is
low very close to ground. In this case the three network re­sistors can be presented as R
per trip voltage V

is defined as

a2

//R3in series with R1. The up-

2

The total hysteresis provided by the network is defined as

=

∆V

V

a

a1-Va2

To assure that the comparator will always switch fully to V
and not be pulled down by the load the resistors values
should be chosen as follow:

<<

R

pull-up

and R

R

load

>

R

pull-up

.

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1

cc