A1321, A1322, and A1323
Ratiometric Linear Hall-Effect Sensors for High-Temperature Operation

The A1321 and A1323 devices are intended to replace the A3515/7 and A3516/8 devices respectively. It is recommended that these new devices be used for all new designs.

Features and Benefits

• Temperature-Stable Quiescent Output Voltage
• Precise Recoverability After Temperature Cycling
• Output Voltage Proportional to Magnetic Flux Density
• Ratiometric Rail-to-Rail Output
• Improved Sensitivity
• 4.5 V to 5.5 V Operation
• Immune to Mechanical Stress
• Solid-State Reliability
• Robust EMC protection

Description

The A132X family of linear Hall-effect sensors are optimized, sensitive, and temperature-stable. These ratiometric Hall-effect sensors provide a voltage output that is proportional to the applied magnetic field. The A132X family has a quiescent output voltage that is 50% of the supply voltage and output sensitivity options of 2.5 mV/G, 3.125 mV/G, and 5 mV/G. The features of this family of devices are ideal for use in the harsh environments found in automotive and industrial linear and rotary position sensing systems.

Each device has a BiCMOS monolithic circuit which integrates a Hall element, improved temperature-compensating circuitry to reduce the intrinsic sensitivity drift of the Hall element, a small-signal high-gain amplifier, and a rail-to-rail low-impedance output stage.

A proprietary dynamic offset cancellation technique, with an internal high-frequency clock, reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. The high frequency clock allows for a greater sampling rate, which results in higher accuracy and faster signal processing capability. This technique produces devices that have an extremely stable quiescent output voltage, are immune to mechanical stress, and have precise recoverability after temperature cycling. Having the Hall element and an amplifier on a single chip minimizes many problems normally associated with low-level analog signals.

Output precision is obtained by internal gain and offset trim adjustments made at end-of-line during the manufacturing process.

The A132X family is provided in a 3-pin single in-line package (UA) and a 3-pin surface mount package (LH). Each package is available in a lead (Pb) free version (suffix, –T) , with a 100% matte tin plated leadframe.

Functional Block Diagram

A1321、A1322 和 A1323
可在高温条件下工作的比例式线性霍尔效应传感器

A1321 和 A1323 器件旨在分别替代 A3515/7 和 A3516/8 器件。 建议这些新器件用于所有新设计。

功能及优点

• 温度稳定的静态输出电压
• 温度周期性变化后的可恢复性
• 输出电压与磁通密度成比例
• 成比例轨对轨输出
• 已改善的灵敏度
• 在 4.5 至 5.5 V 之间工作
• 抗机械应力
• 高可靠性
• 可靠的 EMC 保护

描述

A132X 系列线性霍尔效应传感器已经优化，具有灵敏、温度稳定等特点。 这些比例式霍尔效应传感器提供与所适用磁场成比例的电压输出。 A132X 系列具有等于电源电压 50% 的静态输出电压，以及 2.5 mV/G、3.125 mV/G 和 5 mV/G 三种输出灵敏度选择。凭借其先进功能，该系列成为恶劣环境下汽车和工业线性及旋转位置感测系统的理想之选。

每个器件都具有 BiCMOS 单片电路，该电路集成了已经改进的温度补偿霍尔效应电路，以降低霍尔元件、小型信号高增益放大器和轨对轨低阻抗输出级所固有的灵敏度漂移。

独有的动态偏移取消技术，连同内部高频时钟，可降低通常由器件超模压、温度依存性及热应力引起的残余偏移电压。 高频时钟可支持更高的取样率，从而达到更高的度和更快的信号处理能力。 该技术生产出的器件具有极端稳定的静态输出电压，可抗机械应力，并且在温度周期性变化后还具有的可恢复性。 将霍尔元件和放大器置于单个芯片中，可将通常与低水平模拟信号相关联的很多问题减到少。

该产品在制造过程中已在下线时进行内部增益和偏置修正调整，可实现高精度的输出水平。

A132X 系列以两种封装类型提供：3 引脚单列直插式封装 (UA) 和 3 引脚表面安装封装 (LH)。 所有封装均为无铅版本（后缀，–T），引脚框采用 100% 雾锡电镀。

功能方框图

企业名：深圳市泰通达电子有限公司

类型：经销商

电话： 0755-33062282
33062283

手机：13728992566

联系人：林先生/李小姐

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邮箱：taitong_ic@126.com

地址：广东深圳福田区振华路赛格高科德电子市场2楼22901室