LM1815_TI 自适应可变磁阻传感器放大器

LM1815的基本参数

制造厂商：TI
产品类别：传感器
技术类目：专用传感器 - 信号调节器
功能描述：自适应可变磁阻传感器放大器
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LM1815的产品详情：

The LM1815 is an adaptive sense amplifier and default gating circuit for motor control applications. The sense amplifier provides a one-shot pulse output whose leading edge coincides with the negative-going zero crossing of a ground referenced input signal such as from a variable reluctance magnetic pick-up coil.

In normal operation, this timing reference signal is processed (delayed) externally and returned to the LM1815. A Logic input is then able to select either the timing reference or the processed signal for transmission to the output driver stage.

The adaptive sense amplifier operates with a positive-going threshold which is derived by peak detecting the incoming signal and dividing this down. Thus the input hysteresis varies with input signal amplitude. This enables the circuit to sense in situations where the high speed noise is greater than the low speed signal amplitude. Minimum input signal is 150mV_P-P.

LM1815的优势和特性：

Adaptive Hysteresis
Single Supply Operation
Ground Referenced Input
True Zero Crossing Timing Reference
Operates from 2V to 12V Supply Voltage
Handles Inputs from 100 mVP-P to over 120VP-P with External Resistor
CMOS Compatible Logic

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LM1815的参数（英文）：

Features
Variable Reluctance Sensor
Operating temperature range (C)
-40 to 125
Vs (Min) (V)
2
Vs (Max) (V)
12
Rating
Catalog

LM1815具体的完整产品型号参数及价格（美元）：

LM1815的完整型号有：LM1815M/NOPB、LM1815MX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM1815M/NOPB，工作温度：-40 to 125，封装：SOIC (D)-14，包装数量MPQ：55个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM1815M/NOPB的批量USD价格：1.94（1000+）

LM1815MX/NOPB，工作温度：-40 to 125，封装：SOIC (D)-14，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM1815MX/NOPB的批量USD价格：1.617（1000+）

LM1815的评估套件：

LM1815的电路图解：

LM1815的评估套件：