The MCA1101-20-5 is a ±20A fully integrated bidirectional analog output current sensor on the Antminer APW11 power supply that provides high accuracy and bandwidth. The chip is silk screen marked MCA11205. The chip has inherently low noise, excellent linearity, and repeatability. These devices are factory-calibrated for low offset error and provide an accurate analog voltage output that is linearly proportional to the conducted current (AC or DC). Its sensitivity (mV/A) is compatible with A/D converters and analog control loops in power systems. Additionally, due to the inherently low output noise of the sensor technology, additional filtering is not required to reduce noise, thereby reducing the accuracy of low-level currents in systems with dynamic load profiles.

Feature:

• AMR based integrated current sensor

• Excellent range and accuracy

- Typical total error 0.6% at 25°C

- Maximum error of 2.0% over the temperature range

• Excellent frequency response

• Fast output response time (300ns typical)

• Low primary resistance (0.9 mΩ)

• Powered by a single 5V power supply

• Low power consumption (6.5mA typical)

• Zero current reference pin (Vref)

• Overcurrent fault detection

• -40 to +105°C operating temperature range