Module ADC MCP3424, 4 kênh, 18-bit, có Programmable Gain Amplifier, dành cho Raspberry Pi

Module ADC MCP3424, 4 kênh, 18-bit, có Programmable Gain Amplifier, dành cho Raspberry Pi

  • DFR0316
  • DFRobot
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Module ADC được thiết kế dùng cho Raspberry Pi, Tinker Board, Jetson Kit, bổ sung ADC cho Arduino

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Module ADC MCP3424, 4 kênh, 18-bit, có Programmable Gain Amplifier, dành cho Raspberry Pi

GIỚI THIỆU

The module integrates MCP3432 A/D converter chip. The module can provide analog input function for Raspberry Pi and provide high accuracy analog input for Arduino.

MCP3424 is one of the low noise and high accuracy 18-Bit delta-sigma analog-to-digital (ΔΣ A/D) converter family members of the MCP342X series. Its characteristic is:
Self calibration of internal offset and gain per each conversion.

User can select the PGA gain before the analog-to-digital conversion takes place. This allows the device to convert a very weak input signal with high resolution.

The device have two conversion modes:

(a) One-Shot mode: the device performs a single conversion and enters a low current standby mode automatically until it receives another conversion command.

(b) Continuous mode: the conversion takes place continuously at the set conversion speed.

 

ỨNG DỤNG

+ Temperature Sensing with RTD, Thermistor, and Thermocouple

+ Bridge Sensing for Pressure, Strain, and Force

+ Weigh Scales

+ Battery Fuel Gauges

 

THÔNG SỐ KỸ THUẬT

+ Operating Voltage: 2.7 - 5.5V

+ Standy Current: 300nA (5V)

+ Operating Temperature: -40°C ~ +125°C

+ On-Board Voltage Reference: 2.048V ± 0.05%, Drift 15 PPM /°C

+ On-Board Programmable Gain Amplifier (PGA): x1,x2,x4,x8

+ Differential Input Full Scale Range: -2.048V / PGA ~ 2.048V / PGA (e.g., PGA=4, Range is -0.512 ~ 0.512V)

+ Programmable Resolution: 12, 14, 16, 18bits

+ Programmable Data Rate: 240, 60, 15, 3.75 SPS

+ Gain Error: 0.05% (PGA = 1, 18bits)

+ Offset Error: 15uV (PGA = 1, 18bits)

+ Input Interface: 4 differential channels, PIN header of 2.54mm spacing

+ Output Interface: I2C, PIN header of 2.54mm spacing

+ Size: 27x16mm(1.06x0.63")

 

TÀI LIỆU THAM KHẢO

 Wiki (MCP3424 18-Bit ADC-4 Channel with Programmable Gain Amplifier)

 Arduino Library

 Raspberry Pi Library

 Datasheet

 Schematic

MLAB : Quý khách hàng vui lòng liên hệ sđt(zalo): 0862628846 để được tư vấn hỗ trợ trực tiếp

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