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Overview
The MCP3564R microCurrent Monitor is leveraging the high dynamic range of MCP3564R 8-Ch 24-bit Delta-Sigma ADC to measure both small (µA) and large (800+mA) currents on a 0.05R Shunt, using two High Side Current Sense Amplifiers like MCP6C02 and MCP6C26, with a fixed internal gain of 50. The two different amplifiers were used because they complement each other in terms of input voltage, allowing an overall measurement between 0V and 65V. For improved measurement precision at low currents and voltages, a 0.1% precision voltage reference (MCP1501 – 3V) is present along with a 0.1% resistor (300R) to calibrate the ADC. An onboard EEPROM is present for saving the calibration parameters if needed.
- MCP3564R 8-Channel 24-bit Delta-Sigma ADC with internal voltage reference.
- High Side Zero-Drift Current Sense Amplifiers on 0.05R shunts:
- MCP6C02 – input voltage range between 3V – 65 V
- MCP6C26 – input voltage range between 0V – 36 V
- Buffered voltage dividers to measure bus voltages for both current channels
- On-board precision voltage reference (MCP1501) and 0.1% load resistors for calibrating the ADC measurements.
- 100 mil Header for load connection and calibration.
- mikroBUS compatibility
- Test Points on current sense amplifier outputs and power rails
- Python demo code for the EV64F02A - PIC32MZ MXS Data Capture Board using the generic SPI Bridge functionality.
EV17G92A - MCP3564R microCurrent Monitor
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Documentation
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| MCP3564R microCurrent Monitor User Guide | User Guides | Download | ||
| EV17G92A Schematics | Schematics | Download | ||
| EV17G92A Bill Of Materials | BOM | Download | ||
| EV17G92A 3D PDF | PCB artwork | Download | ||
| EV17G92A GERBERS | Gerbers | Download | ||
| EV17G92A Rev2 Altium Design Files | CAD Resources | Download | ||
| EV17G92A MCP3564R microCurrent Python TCP Code Example | Software Libraries and Firmware | Download |
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