LM334S是Linear公司的一款电流源产品，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相关的凌力尔特元器件型号供参考。
LM334S - Constant Current Source and Temperature Sensor
LM334S - Constant Current Source and Temperature Sensor - Linear Technology（凌力尔特）
Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages from Linear Technology Are Now Obsolete
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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.
| 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 |
