MikroElektronika Click BOARD Comparator click Manual de usuario

2 3

2. Soldering the headers

3. Plugging the board in

Once you have soldered the headers your

board is ready to be placed into the desired

mikroBUS™socket. Make sure to align the

cut in the lower-right part of the board with

the markings on the silkscreen at the

mikroBUS™socket. If all the

pins are aligned correctly,

push the board all the way

into the socket.

Turn the board upward again. Make sure

to align the headers so that they are

perpendicular to the board, then solder the

pins carefully.

Turn the board upside down so that

the bottom side is facing you upwards.

Place shorter pins of the header into the

appropriate soldering pads.

Before using your click board™, make sure

to solder 1x8 male headers to both left and

right side of the board. Two 1x8 male headers

are included with the board in the package.

4. Essential features

Comparator click can be used with a single

or dual power supply. If a single power

supply is used, the oset voltage can be as

low as 2.0 mV, with a range from 2.0 VDC to

36 VDC. For dual supplies, the range is from

±1.0 VDC to ±18 VDC. The resulting output

is compatible with TTL, DTL, ECL, MOS and

CMOS logic systems.

Comparator click, carrying the LM2903 IC, has

two independent precision voltage compara-

tors. Two pairs of screw terminals allow you

to connect separate inputs (additional two

screw terminals are for GND connections).

Two potentiometers are placed between

the terminals and the IC. Each input has its

own Interrupt pin on the mikroBUS™ socket

(one on the INT pin, the other in place of the

mikroBUS™AN pin), here marked 01 and 02.

1. Introduction

Comparator click manual

ver 1.01

0100000080429

Comparator click

click

BOARD™

www.mikroe.com

VCC

RST

SCK

MOSI

MISO

+3.3V

GND

PWM

INT

SCL

SDA

+5V

GND

MIKROBUS

VCC

LM 2903

LO1

HI1

100nF

2K2

1K2

Q1 Q2

CON1

CON3

CON2

VCC

LO2 HI2

2K2

1K2

OUT1

IN1-

IN1+

OUT2

IN2-

IN2+

Q5 Q6

4K7

OUT1 OUT2

20K

VCC

IN1-

IN1+

IN2-

IN2+

OUTPUT1

OUTPUT2

VCC-3.3V VCC-5V

PWR

2K2

VCC

In 1-

In 1+

GND In 2+

In 2-

Out 2

V+Out 1

8. Code examples

MikroElektronika oers free tech support

(www.mikroe.com/support) until the end of

the product’s lifetime, so if something goes

wrong, we’re ready and willing to help!

Once you have done all the necessary

preparations, it’s time to get your click board™

up and running. We have provided examples

for mikroC™, mikroBasic™and mikroPascal™

compilers on our Libstock website. Just

download them and you are ready to start.

.com

6. Dimensions

MikroElektronika assumes no responsibility

or liability for any errors or inaccuracies

that may appear in the present document.

Specication and information contained in

the present schematic are subject to change

at any time without notice.

mm mils

LENGTH 57.15 2250

WIDTH 25.4 1000

HEIGHT* 15 590

5. Schematic

7. SMD jumper

9. Support

25.4 mm / 1000 mils

57.15 / 2250 mils

* without headers

10. Disclaimer

LOGIC SEL is used

to determine

whether 5V or

3.3V logic level

is used on the

interrupt pins.

X-ON Electronics

Largest Supplier of Electrical and Electronic Components

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