Product Overview
The AS5270 is a dual-die, high-resolution absolute angular position sensor utilizing Hall sensor technology. It measures the orthogonal component of flux density (Bz) over a full-turn rotation and offers compensation for external stray magnetic fields. Available with analog (AS5270A) or digital (AS5270B) output interfaces, the AS5270B can be programmed as PWM or SENT-compliant. It requires a simple two-pole magnet and provides instant angular position indication. The device operates at a 5V supply voltage with overvoltage protection up to +20V and reverse polarity protection up to 20V on supply pins. The AS5270A features a stacked dual-chip design for high-reliability redundant operation.
Product Attributes
- Brand: ams
- Certifications: AEC-Q100 Grade 0 qualified
Technical Specifications
| Parameter | AS5270A | AS5270B | Conditions | Min | Typ | Max | Unit | |
|---|---|---|---|---|---|---|---|---|
| Output Interface | Analog | PWM or SENT | ||||||
| Core Resolution | 14 bit | |||||||
| Analog Resolution | 12 bit | Range > 90 | ||||||
| Digital Resolution | 12 bit | |||||||
| Integral Non-linearity (optimum) | -0.5 | Best aligned reference magnet(2) at 25C over full turn 360 | 0.5 | deg | ||||
| Integral Non-linearity (optimum) over temperature | -0.9 | Best aligned reference magnet(2) over temperature -40C to 150C over full turn 360 | 0.9 | deg | ||||
| Integral Non-linearity | -1.4 | Best aligned reference magnet* over temperature -40C to150C over full turn 360 and displacement | 1.4 | deg | ||||
| Output Noise (peak to peak) | 1 | Static conditions - filter on | LSB | |||||
| Sampling Time | 125 | s | ||||||
| Supply Voltage (VDD) | 4.5 | 5.0 | 5.5 | V | ||||
| Regulated Voltage (VREG) | 3.3 | VDD3V3 should not be loaded by any external DC current | 3.45 | 3.6 | V | |||
| Supply Current (IDD_A) | 4 mA | AGC=255 (no magnet placed); 2 times for AS5270A | 12 | mA | ||||
| Supply Current (IDD_B) | 4 mA | AGC=255 (no magnet placed); 2 times for AS5270B | 10 | mA | ||||
| Supply Current at Start-up (ISTART) | 2.5 | VREG = 2.25V | 10 | mA | ||||
| Start-up Time (TSUP) | 10 | Functional mode | ms | |||||
| VDD Undervoltage Upper Threshold | 3.5 | 4.0 | 4.5 | V | ||||
| VDD Undervoltage Lower Threshold | 3.0 | 3.5 | 4.0 | V | ||||
| VDD Undervoltage Hysteresis | 300 | 900 | mV | |||||
| VDD Undervoltage Detection Time (UVDT) | 10 | 250 | s | |||||
| Undervoltage Recovery Time (UVRT) | 10 | 250 | s | |||||
| VDD Overvoltage Upper Threshold | 6.0 | 6.5 | 7.0 | V | ||||
| VDD Overvoltage Lower Threshold | 5.5 | 6.0 | 6.5 | V | ||||
| VDD Overvoltage Hysteresis | 300 | 900 | V | |||||
| VDD Overvoltage Detection Time (OVDT) | 500 | From the time VDD exceeding 5.5V | 2000 | s | ||||
| VDD Overvoltage Recovery Time (OVRT) | 500 | From the time VDD returning from VDD > 5.5V to normal operating voltage (4.5V < VDD < 5.5V) | 2000 | s | ||||
| WatchDog Error Detection Time (TDETWD) | 12 | ms | ||||||
| Operating Temperature Range | -40 to 150 C | |||||||
| Storage Temperature Range | -55 to 125 C | |||||||
| Package Body Temperature | 260 C | |||||||
| Relative Humidity (non-condensing) | 5 to 85 % | |||||||
| Moisture Sensitivity Level | 3 | |||||||
2411220222_AMS-AS5270B-HMFT_C2153653.pdf
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