US Digital MA3 Miniature Absolute Magnetic Shaft Encoder
Vendor: US Digital
Product: MA3 微型绝对式磁轴编码器
The MA3 is US Digital's miniature absolute magnetic shaft encoder with 10/12-bit absolute angular resolution over analog or PWM output and instant angle at power-up; 4.5-5.5 V supply at 16-20 mA typical, 50 ms power-up; up to 15,000 rpm mechanical with starting torque as low as 0.05 in-oz and 4.1e-6 oz-in-s² rotor inertia; -40 to +125°C operation, 20 G vibration (5 Hz-2 kHz), ±2 kV HBM ESD per MIL-STD-883E 3015.7 and only 0.046° RMS output noise on the 12-bit version, in a threaded brass 3/8-32 UNF package for compact absolute angle feedback in robot joints, servos and gimbals.
| ESD | ±2 kV HBM（MIL-STD-883E 3015.7） |
| 供电 | 4.5-5.5 V（典型 5.0 V） |
| 类型 | 绝对式磁轴编码器（单圈） |
| 输出 | 模拟（ratiometric）/ PWM |
| 分辨率 | 10 / 12 bit 绝对角度 |
| 耐振动 | 20 G（5 Hz-2 kHz） |
| 上电时间 | 50 ms |
| 供电电流 | 16-20 mA |
| 工作温度 | -40 ~ +125 °C |
| 起动扭矩 | 0.05-0.5 in-oz（按轴选项） |
| 转子惯量 | 4.1×10⁻⁶ oz-in-s² |
| 输出噪声 | 0.046° RMS（12 bit）/ 0.12° RMS（10 bit） |
| 最高机械转速 | 15,000 rpm |