Aceinna · Current sensors
MCx2101 automotive current sensor ICs
AEC-Q100 isolated AMR current sensor ICs for automotive power conversion, +/-5 A to +/-65 A.
- AEC-Q100
- 5 MHz bandwidth
- 80 ns response
- -40 to 150 C

Overview
The MCx2101 family are AEC-Q100 qualified, isolated AMR current sensor ICs for automotive power conversion and management, including designs with fast switching SiC and GaN power devices. They offer 5 MHz 3dB bandwidth with low phase delay, 80 ns output response and 4.8 kV isolation in a SOIC-16 package. Parts come in fixed gain (MCA) and ratiometric (MCR) versions for 3.3 V or 5 V supplies.
Built for
- On-board chargers and fast DC chargers
- Automotive motor drives and inverters
- Automotive DC-DC and AC-DC supplies
- Solar inverters and data center power
Key features
AEC-Q100 qualified
Qualified for automotive applications.
Wide temperature range
Operating ambient range of -40 to 150 C.
Fast response
80 ns typical output response time for protection circuits.
Low noise
Noise density of 35 µA/√Hz for high signal to noise ratio.
High PSRR
Ratio offset PSRR of -80 dB at 1 kHz.
Certified isolation
4.8 kV dielectric strength, UL/IEC/EN62368-1 and UL1577 certified.
Specifications
- Current ranges
- +/-5, 20, 50, 65 A (65 A MCA only)
- Total error, 20 A parts
- 0.6% typ at 25 C, 2.0% max over temp
- Bandwidth (3dB)
- 5.0 MHz typ
- Phase bandwidth
- 1.3 MHz typ
- Output response time
- 80 ns typ
- Primary resistance
- 0.9 mΩ
- Supply
- 3.3 V or 5 V single supply
- Supply current
- 4.5 mA (3.3 V), 6.5 mA (5 V) typ
- Dielectric strength
- 4.8 kV
- Basic isolation voltage
- 1600 Vrms
- Reinforced isolation voltage
- 800 Vrms
- Noise density
- 35 µA/√Hz
- PSRR
- -80 dB at 1 kHz
- Operating temperature
- -40 to 150 C
- Package
- SOIC-16, 10 x 10 mm
- Qualification
- AEC-Q100
MCx2101 part numbers
| Part number | Output | Range | Supply | Sensitivity | Accuracy (of reading) |
|---|---|---|---|---|---|
| MCA2101-5-3 | Fixed gain | +/-5 A | 3.3 V | 230 mV/A | 1% |
| MCA2101-20-3 | Fixed gain | +/-20 A | 3.3 V | 60 mV/A | 0.6% |
| MCA2101-50-3 | Fixed gain | +/-50 A | 3.3 V | 25 mV/A | 1.5% |
| MCA2101-65-3 | Fixed gain | +/-65 A | 3.3 V | 20 mV/A | 3% |
| MCR2101-5-3 | Ratiometric | +/-5 A | 3.3 V | 250 mV/A | 1% |
| MCR2101-20-3 | Ratiometric | +/-20 A | 3.3 V | 66 mV/A | 0.6% |
| MCR2101-50-3 | Ratiometric | +/-50 A | 3.3 V | 25 mV/A | 1.5% |
| MCA2101-5-5 | Fixed gain | +/-5 A | 5 V | 350 mV/A | 1% |
| MCA2101-20-5 | Fixed gain | +/-20 A | 5 V | 90 mV/A | 0.6% |
| MCA2101-50-5 | Fixed gain | +/-50 A | 5 V | 35 mV/A | 1.5% |
| MCA2101-65-5 | Fixed gain | +/-65 A | 5 V | 27 mV/A | 3% |
| MCR2101-5-5 | Ratiometric | +/-5 A | 5 V | 400 mV/A | 1% |
| MCR2101-20-5 | Ratiometric | +/-20 A | 5 V | 100 mV/A | 0.6% |
| MCR2101-50-5 | Ratiometric | +/-50 A | 5 V | 40 mV/A | 1.5% |
Models and options
- MCA2101-5-3
- MCA2101-20-3
- MCA2101-50-3
- MCA2101-65-3
- MCR2101-5-3
- MCR2101-20-3
- MCR2101-50-3
- MCA2101-5-5
- MCA2101-20-5
- MCA2101-50-5
- MCA2101-65-5
- MCR2101-5-5
- MCR2101-20-5
- MCR2101-50-5
Specifications as published by Aceinna. Configurations vary by model; we will confirm the exact build with your quote.
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MCx1101 current sensor ICs
Isolated AMR current sensor ICs from +/-5 A to +/-65 A in SOIC-16, with 4.8 kV dielectric strength.
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- 4.8 kV isolation
- 3.3 V or 5 V
- SOIC-16

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- For MCx1101 ICs
- BNC VOUT / VREF
- 50 A peak, 35 A RMS
- 4 oz copper PCB
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