Velleman VMA453, Руководство пользователя

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VMA453
V. 01 – 06/05/2020 3 ©Velleman nv
4. What is Arduino ®
Arduino ® is an open-source prototyping platform based in easy-to-use hardware and software.
Arduino ® boards are able to read inputs – light-on sensor, a finger on a button or a Twitter
message – and turn it into an output – activating of a motor, turning on an LED, publishing
something online. You can tell your board what to do by sending a set of instructions to the
microcontroller on the board. To do so, you use the Arduino programming language (based on
Wiring) and the Arduino
® software IDE (based on Processing).
Surf to www.arduino.cc and www.arduino.org for more information.
5. Overview
General
The VMA453 is a great general purpose 16-bit converter. The chip can be configured as 4
single-ended input channels, or two differential channels. It contains 4 precision, low-power,
16-bit, I2C-compatible, analogue-to-digital converters (ADCs). It also has a low-drift voltage
reference and an oscillator as well as a programmable gain amplifier (PGA) to help boost
smaller single/differential signals to the full range and a digital comparator.
Features
• low-drift reference voltage
• internal oscillator
• internal programmable gain amplifier
• 4 single-ended channels or 2 differential channels
• programmable comparator
• low current consumption with auto shut-down mode
Specifications
operating voltage ...............................................................................................2-5.5 VDC
operating current ....................................................................... 150 µA in continuous mode
precision ............................................................................................................... 16 bits
programmable data rate ............................................................................ 8-860 samples/s
interface ..................................................... I²C with 4 pin selectable addresses (0x48-0x4B)
6. Connections
1. VDD, 2-5.5 V supply
2. ground in
3. I 2 C SCL
4. I 2 C SDA
5. address pin
6. alert/ready
7. analogue input 0
8. analogue input 1
9. analogue input 2
10. analogue input 3