• - 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

Fabricated using the BiCom-II process, the THS4281 is a low-power, rail-to-rail input and output, voltage-feedback operational amplifier designed to operate over a wide power-supply range of 2.7-V to 15-V single supply, and ±1.35-V to ±7.5-V dual supply. Consuming only 750 µA with a unity gain bandwidth of 90 MHz and a high 35-V/µs slew rate, the THS4281 allows portable or other power-sensitive applications to realize high performance with minimal power. To ensure long battery life in portable applications, the quiescent current is trimmed to be less than 900 µA at +25°C, and 1 mA from –40°C to +85°C.

The THS4281 is a true single-supply amplifier with a specified common-mode input range of 400 mV beyond the rails.

特性

• Very Low Quiescent Current: 750 µA (at 5 V)
• Rail-to-Rail Input and Output:
  • Common-Mode Input Voltage Extends
    400 mV Beyond the Rails
  • Output Swings Within 150 mV From the Rails
• Wide –3-dB Bandwidth at 5 V:
  • 90 MHz at Gain = +1, 40 MHz at Gain = +2
• High Slew Rate: 35 V/µs
• Fast Settling Time (2-V Step):
  • 78 ns to 0.1%
  • 150 ns to 0.01%
• Low Distortion at Gain = +2, V_O = 2-V_PP, 5 V:
  • –91 dBc at 100 kHz, –67 dBc at 1 MHz
• Input Offset Voltage: 2.5 mV (Max at +25°C)
• Output Current > 30 mA (10- Load, 5 V)
• Low Voltage Noise of 12.5 nV/√Hz
• Supply Voltages: +2.7 V, 3 V, +5 V, ±5 V, +15 V
• Packages: SOT23, MSOP, and SOIC
• APPLICATIONS
  • Portable/Battery-Powered Applications
  • High Channel Count Systems