• - 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 THS4521, THS4522, and THS4524 family of devices are very low-power, fully differential op amps with rail-to-rail output and an input common-mode range that includes the negative rail. These amplifiers are designed for low-power data acquisition systems and high-density applications where power dissipation is a critical parameter, and provide exceptional performance in audio applications.

The family includes single (THS4521), dual (THS4522), and quad (THS4524) versions.

These fully differential op amps feature accurate output common-mode control that allows for dc-coupling when driving analog-to-digital converters (ADCs). This control, coupled with an input common-mode range below the negative rail as well as rail-to-rail output, allows for easy interfacing between single-ended, ground-referenced signal sources.

特性

• Fully Differential Architecture
• Bandwidth: 145 MHz
• Slew Rate: 490 V/µs
• HD₂: –133 dBc at 10 kHz (1 V_RMS, R_L = 1 k )
• HD₃: –140 dBc at 10 kHz (1 V_RMS, R_L = 1 k)
• Input Voltage Noise: 4.6 nV/√Hz (f = 100 kHz)
• THD+N: –112dBc (0.00025%) at 1 kHz
  (22-kHz BW, G = 1, 5 V_PP)
• Open-Loop Gain: 119 dB
• NRI—Negative Rail Input
• RRO—Rail-to-Rail Output
• Output Common-Mode Control (with Low Offset and Drift)
• Power Supply:
  • Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V)
  • Current: 1.14 mA/ch
• Power-Down Capability: 20 µA (typ)
• APPLICATIONS
  • Low-Power SAR and ADC Drivers
  • Low-Power Differential Driver
  • Low-Power Differential Signal Conditioning
  • Low-Power, High-Performance Differential Audio Amplifier