mikroElektronika ADC 2 click User manual

2 3
click
BOARD™
www.mikroe.com
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
ADC 2 click, because of the low noise and high
oversampling rate of MCP3551, is ideal for
high accuracy applications. Measurements
from analog pressure, temperature and hu-
midity sensors, for example. The board carries
two pairs of screw screw terminals: VIN- for
bringing in reference voltage, VIN+ for the
positive voltage. VCC out and GND are output
voltages. ADC 2 click also has an extended
temperature range (-40°C to +125°C).
1
ADC 2 click carries MCP3551/3, which is a
22-bit ADC with automatic internal oset
and gain calibration. This high precision
analog-to-digital converter has total unad-
justed error of less than 10 ppm, and low-
output noise of 2.5 µV RMS. ADC 2 click com-
municates with the target board through
mikroBUS™ CS, CSK and MISO lines. The
board is designed ot use either a 3.3V or 5V
power supply.
ADC 2 click
1. Introduction
ADC 2 click manual
ver 1.00
0100000080252

VREF
1
VIN+
2
VIN-
3
VSS
4SCK 5
SDO/RDY 6
CS 7
VDD 8
U1
MCP3551-E/SN
VIN+
VIN-
1/8W
R4
330R
VCC
#CS
MISO
SCK
C2
10uF/25V
VREF
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.
#CS
MISO
SCK
VCC-5
GNDGND
VCC-3.3
C3
100nF/50V
VCC-5
VIN
1VOUT 2
VSS 3
VR1
MCP1541T-I/TT
VCC-4.096VCC-5
1/8W
R2 0R
VCC-5
VCC
VCC-3.3
VREF
VCC-4.096 1/8W
R1 0R
VCC
1/8W
R3
10K
VCC
C1
100nF/50V
VCC
#CS
VCC
GND
VIN+
VIN-
1
2
CN1
Terminal 2
1
2
CN2
Terminal 2
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.
Copyright © 2015 MikroElektronika.
All rights reserved.
mm mils
LENGTH 28.6 1125
WIDTH 25.4 1000
HEIGHT* 12.2 480
5. Schematic
7. SMD jumpers 10. Disclaimer
9. Support
25.4 mm / 1000 mils
28.6 mm / 1125 mils
PWR SEL is used to determine whether 5V
or 3.3V power supply is used, and VREF
SEL to select either VCC or 4.096 V as the
voltage reference.
* without headers