LM334 Three Terminal Adjustable Current Source

The LM134/LM234/LM334 are 3-terminal adjustable current sources characterized by:

The current is determined by an external resistor without requiring other external components.

Reverse voltages of up to 20V will only draw a current of several microamperes. This enables the circuit to operate as a rectifier and as a source of current in a.c. applications.

For the LM134/LM234/LM334, the voltage on the control pin is 64mV at +25°C and is directly proportional to the absolute temperature (°K). The simplest external resistor connection generates a current with approximately 0.33%/°C temperature dependence. Zero drift can be obtained by adding an additional resistor and a diode to the external circuit

技术特性
  • Operates from 1V to 40V
  • 0.02%/V current regulation
  • Programmable from 1µA to 10mA
  • ±3% initial accuracy
管脚定义图
LM334 功能框图
LM334 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
LM334DT Active   1000 SO-8 Tape And Reel -0 °C-70 °C LM334DT
LM334D NRND   1000 SO-8 Tube -0 °C-70 °C LM334D
DATASHEET
描述 版本 大小
LM334 :Three terminal adjustable current sources 3 504KB