Linear outputHall-effect sensors的新应用（如位移和角位等）要求更高的精确度和更小的封装尺寸。Allegro A1318 和 A1319 线性霍尔效应传感器 IC 专为满足上述要求而设计。表面贴装封装和通孔插入式封装均具有上述热稳定器件。
每种器件的精确度都可以通过下线优化得到提高。每种器件都配有非易失性存储器，可针对给定应用或电路优化器件灵敏度和静态电压输出（QVO：在没有磁场的情况下的输出）。通过在 Allegro 下线测试中对温度系数进行编程，以实现高灵敏度和 QVO，A1318 和 A1319 还可在整个工作温度范围内实现最佳性能。
These proportional Hall-effect sensor ICs provide a voltage output proportional to the applied magnetic field. The quiescent voltage output can be adjusted to approximately 50% of the supply voltage.
With their features, these linear devices are ideal for automotive and industrial applications that require high accuracy and operate over a temperature range of –40°C to 150°C.
Each BiCMOS monolithic circuit incorporates Hall element temperature compensation circuitry that reduces the inherent sensitivity drift of the Hall element, a small-signal high-gain amplifier, a clamped low-impedance output stage, and a proprietary dynamic offset cancellation technique.
A1318 和 A1319sensorIC 采用两种封装形式。LH 是表面贴装用 SOT-23W 微型低剖面封装。UA 是通孔插入用三引脚超小型单列直插式封装 (SIP)。两种封装均为无铅 (Pb) 封装，采用 100% 雾锡电镀引脚框。
- 3.3 V 电源供电
- Allegro's programmed QVO temperature coefficient ™ helps improve accuracy
- Small package options
- High bandwidth, low noise analog output
- The high-speed chopper design minimizes QVO drift over the operating temperature range
- Temperature stable quiescent voltage output and sensitivity
- Precise recoverability after periodic temperature changes
- The output voltage clamp has a short-circuit diagnostic function
- Undervoltage lockout (UVLO)
- 较宽的环境温度范围:–40°C 到 150°C
- Resistant to mechanical stress
- Higher EMC performance for stringent automotive applications