• - 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 OPA4872 offers a very wideband 4:1 multiplexer in an SO-14 package. Using only 10.6mA, the OPA4872 provides a user-settable output amplifier gain with greater than 500MHz large-signal bandwidth (2V_PP). The switching glitch is improved over earlier solutions using a new (patented) input stage switching approach. This technique uses current steering as the input switch while maintaining an overall closed-loop design. The OPA4872 exhibits an off isolation of 88dB in either Disable or Shutdown mode. With greater than 500MHz small-signal bandwidth at a gain of 2, the OPA4872 gives a typical 0.1dB gain flatness to greater than 120MHz.

System power may be optimized using the chip enable feature for the OPA4872. Taking the chip enable (EN) line high powers down the OPA4872 to less than 3.

特性

• 500MHz SMALL-SIGNAL BANDWIDTH
• 500MHz, 2V_PP BANDWIDTH
• 0.1dB GAIN FLATNESS to 120MHz
• 10ns CHANNEL SWITCHING TIME
• LOW SWITCHING GLITCH: 40mV_PP
• 2300V/µs SLEW RATE
• 0.035%/0.005° DIFFERENTIAL GAIN, PHASE
• QUIESCENT CURRENT = 10.6mA
• 1.1mA QUIESCENT CURRENT IN SHUTDOWN MODE
• 88dB OFF ISOLATION IN DISABLE OR SHUTDOWN (10MHz)