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LM334S - 典型应用图例：
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LM334S - 封装图解：
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LINEAR产品 - LM334S介绍

LM334S - LM334S是Constant Current Source and Temperature Sensor

LM334S是LINEAR凌力尔特公司的一款电流源产品，LM334S是LM334S是Constant Current Source and Temperature Sensor，本站介绍了LM334S的封装应用图解、特点和优点、功能等，并给出了与LM334S相关的LINEAR元器件型号供参考。

LM334S - LM334S是Constant Current Source and Temperature Sensor - 电流源 - 电源管理 - 凌力尔特

LM334S - Constant Current Source and Temperature Sensor

LM334S - Constant Current Source and Temperature Sensor - Linear Technology（凌力尔特）

功能描述

Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages from Linear Technology Are Now Obsolete

Download Complete Datasheet for Details

The LM134 is a three-terminal current source designed to operate at current levels from 1µA to 10mA, as set by an external resistor. The device operates as a true two-terminal current source, requiring no extra power connections or input signals. Regulation is typically 0.02%/V and terminal-to-terminal voltage can range from 800mV to 40V.

Because the operating current is directly proportional to absolute temperature in degrees Kelvin, the device will also find wide applications as a temperature sensor. The temperature dependence of the operating current is 0.336%/°C at room temperature. For example, a device operating at 298µA will have a temperature coefficient of 1µA/°C. The temperature dependence is extremely accurate and repeatable. Devices specified as temperature sensors in the 100µA to 1mA range are the LM134-3, LM234-3 and the LM134-6, LM234-6, with the dash numbers indicating ±3°C and ±6°C accuracies, respectively.

If a zero temperature coefficient current source is required, this is easily achieved by adding a diode and a resistor.

特点
  • 1µA to 10mA Operation
  • 0.02%/V Regulation
  • 0.8V to 30V Operating Voltage
  • Can Be Used as Linear Temperature Sensor
  • Draws No Reverse Current
  • Supplied in Standard Transistor Packages
    • 应用
  • Current Mode Temperature Sensing
  • Constant Current Source for Shunt References
  • Cold Junction Compensation
  • Constant-Gain Bias for Bipolar Differential Stage
  • Micropower Bias Networks
  • Buffer for Photoconductive Cell
  • Current Limiter
    • 以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
    器件型号 封装 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量)
    LM334S8 SO-8 C $1.92 $1.45
    LM334S8#PBF SO-8 C $1.92 $1.45
    LM334S8#TR SO-8 C $1.98 $1.51
    LM334S8#TRPBF SO-8 C $1.98 $1.51
    LM334Z TO-92 C $1.92 $1.45
    LM334Z#PBF TO-92 C $1.92 $1.45
    LM334Z#TR TO-92 C $1.98 $1.51
    LM334Z#TRPBF TO-92 C $1.98 $1.51
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