LM4040中文资料高精度微功耗分流器电压参考数据手册ST规格书

描述 Description

The LM4040 is a low power and high accuracy shunt voltage reference providing a stable output voltage over the industrial temperature range (-40 to +125 °C), with a maximum temperature coefficient of 70 ppm/°C. It is available in 0.1%, 0.2%, 0.5% and 1% initial accuracy versions. The SOT323-5L and SOT23-3L packages can be designed in applications where space saving is a critical issue. The very low operating current is a key advantage for power restricted designs. The LM4040 is very stable and can be used in a broad range of application conditions.

特性 Features

• Fixed 2.048 V, 2.5 V, 3.0 V, 4.096 V and 5.0 V output voltages
• Ultra low operating current: 10 µA at 25 °C
• High precision @ 25 °C: +/- 0.1% (LM4040A), +/- 0.2% (LM4040B), +/- 0.5 % (LM4040C), +/- 1% (LM4040D)
• Very low LF noise: typ.10 µ Vp-p
• Stable when used with capacitive loads
• Industrial (-40 to +125 °C) temperature range
• 70 ppm/°C max. temperature coefficient
• Available in SOT23-3L and SOT323-5L packages

简介

LM4040属于集成电路（IC）的电压基准。由制造生产的LM4040电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。