UNISONIC TECHNOLOGIES CO LMV393 Technical data

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UNISONIC TECHNOLOGIES CO., LTD

LMV393

LINEAR INTEGRATED CIRCUIT

DUAL GENERAL PURPOSE,
LOW VOLAGE, COMPARATORS

 DESCRIPTION

The UTC LMV393 is a low voltage (2.7-5V) version of the dual

comparators. Its noise performance has been improved by using
bipolar differential input and output stages. These comparators also
have a unique characteristic in that the input common-mode voltage
range includes ground even though operated from a single power
supply voltage.

The UTC LMV393 is designed for applications in consumer

automotive, mobile communications, notebooks and PDA’s, battery
powered electronics, General Purpose Portable Device, General
Purpose Low Voltage Applications.

 FEATURES

* High precision comparator.
* Low operating voltage 2.7-5V.
* Low Supply Current 100μA/Channel (Typical).
* Low Input Bias Current 100nA (Typical).
* Low Input Offset Current 2nA (Typical).
* Input Common Mode Voltage Range Includes Ground.
* Low Output Saturation Voltage 0.2V.

*Pb-free plating product number: LMV393L

 ORDERING INFORMATION

Ordering Number

Normal Lead Free Plating
LMV393-D08-T LMV393L-D08-T DIP-8 Tube
LMV393-S08-R LMV393L-S08-R SOP-8 Tape Reel
LMV393-S08-T LMV393L-S08-T SOP-8 Tube

LMV393-SM1-R LMV393L-SM1-R MSOP-8 Tape Reel
LMV393-SM1-T LMV393L-SM1-T MSOP-8 Tube

Package Packing

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Copyright © 2005 Unisonic Technologies Co., Ltd QW-R104-004,A

LMV393 LINEAR INTEGRATED CIRCUIT

 PIN CONFIGUREATION

 BLOCK DIAGRAM

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LMV393 LINEAR INTEGRATED CIRCUIT

 ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNIT
Supply Voltage VCC 2.7 ~ 5.0 V
Differential Input Voltage V
Voltage on any pin (referred to V- pin) 5.5 V
Junction Temperature TJ +150 °C
Operating Temperature T
Storage Temperature T
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

 THERMAL CHARACTERISTICS

PARAMETER SYMBOL RATINGS UNIT

MSOP-8 190

Thermal Resistance Junction to Ambient

 DC ELECTRICAL CHARACTERISTICS (T

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Input Offset Voltage V
Input Offset Voltage Average Drift I
Input Bias Current I
Input Offset Current I

Input Voltage Range VIN

Supply Current ICC 100 200 μA
Voltage Gain GV 20 50 V/mV
Saturation Voltage V

Output Sink Current

2.7V 5 40

5.0V

Output Leakage Current I

IN(OFF)

I(OFF)

I(BIAS)

I(OFF)

SAT

I

SINK

LEAK

DIP-8 100

SOP-8

=25℃, V

J

1.7 7 mV

5 μV/℃

100 250 nA

2 50 nA

I

V

≤4mA 200 400 mV

SINK

≤1.5V

OUT

0.003 1 μA

±VCC V

IN(DIFF)

-40 ~ +85 °C

OPR

-65 ~ +150 °C

STG

θJA

℃/W

150

-

=0V, unless otherwise specified.)

-0.1

4.2

10 50

V

mA

 AC ELECTRICAL CHARACTERISTICS (T

=25 ,℃ RL=5.1kΩ, V-=0V, unless otherwise specified.)

J

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Propagation Delay
(High to Low)

Propagation Delay
(Low to High)

2.7V 9

5.0V

2.7V 3.8

5.0V

2.7V 2

5.0V

2.7V 0.7

5.0V

Input Overdrive=10mV

t

PHL

Input Overdrive=100mV

Input Overdrive=10mV

t

PLH

Input Overdrive=100mV

8

3.4

3

0.8

us

us

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LMV393 LINEAR INTEGRATED CIRCUIT

 APPLICATION CIRCUITS

Basic Comparator

A basic comparator circuit can convert analog signals to a digital output. The UTC LMV393 needs a pull-up

resistor connected to the positive supply voltage which can make output switch properly. So that when the internal

output transistor is off, the output voltage will be pulled up to the external positive voltage.

The resister should be chosen properly. The higher resister can reduce the power dissipation. the lower resister

can improve the capacity of loading output. The range of resister should between 1k to 10kΩ.

The Output voltage of the comparator will be high if the input voltage at the non-inverting pin is greater than the

reference voltage at the inverting pin. On the other hand it will be low.

Comparator with Hysteresis

The comparator may oscillate or produce a noisy output if the applied differential input voltage is near the

comparator’s offset voltage, especially when the input signal is moving slowly across the comparator’s switching

threshold. Addition of hysteresis or positive feedback can solve this problem.

Inverting Comparator with Hysteresis

It requires a three resistor network that is referenced to the supply voltage V

voltage is high, these resistors can be represented as R1 // R3 in series with R2. The lower set input voltage is

defined as:

of the comparator. When the output

CC

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