• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The LP239, LP339, LP2901 are low-power quadruple differential comparators. Each device consists of four independent voltage comparators designed specifically to operate from a single power supply and typically to draw 60-µA drain current over a wide range of voltages. Operation from split power supplies is also possible and the ultralow power supply drain current is independent of the power supply voltage.

Applications include limit comparators, simple analog-to-digital converters, pulse generators, squarewave generators, time delay generators, voltage controlled oscillators, multivibrators, and high-voltage logic gates. The LP239, LP339, LP2901 were specifically designed to interface with the CMOS logic family.

特性

• Wide Supply-Voltage Range . . . 3V to 30 V
• Ultralow Power Supply Current Drain . . . 60 µA Typ
• Low Input Biasing Current . . . 3 nA
• Low Input Offset Current . . . ±0.5 nA
• Low Input Offset Voltage . . . ±2 mV
• Common-Mode Input Voltage Includes Ground
• Output Voltage Compatible With MOS and CMOS Logic
• High Output Sink-Current Capability
  (30 mA at V_O = 2V)
• Power Supply Input Reverse-Voltage Protected
• Single-Power-Supply Operation
• Pin-for-Pin Compatible With LM239, LM339, LM2901

The LP239 is obsolete and is no longer supplied.