Commit 6d65941b authored by Alex Shure's avatar Alex Shure

Current sensing

parent 74559e7a
......@@ -20,11 +20,12 @@ Needed for precise ADC measurements. 2.56V?
3. SMD/THT resistor. Inexpensive but rather large for a high current rating. No calibration needed.
4. Integrated hall effect sensor, e.g. Allegro ACS712. Good efficiency. High price. Sourcing and sinking will both be covered (still needs antiparallel MOSFETs though).
4. Integrated hall effect sensor, e.g. Allegro ACS712. Good efficiency. High price. Sourcing and sinking will both be covered (still needs antiparallel MOSFETs though). (heavy idle: 5V supply, 10mA Iq)
ADCs with integrated amps:
ADS1115: 16bit 4channel 8-800sps ADC with 16x PGA, i2c, differential mode
HX711: 24bit (less than 20bit usable) i2c ADC with amplifier, commonly used in weight scales
INA220: 12bit Bi-Directional, Zero-Drift, Low- or High-Side, I2C Out Current/Power Monitor, max 26V bus voltage. 1mA Iq
ADS1115: 16bit 4channel 8-800sps ADC with 16x PGA, i2c, differential mode, 150µA Iq
HX711: 24bit (less than 20bit usable) i2c ADC with amplifier, commonly used in weight scales, 1.5mA Iq
### Voltage Sensing
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