THS3122 - Texas Instruments

THS3122 450-mA Current Feedback Amplifiers

The THS3122 and THS3125 are low-noise, highspeed current feedback amplifiers, with high output current drive. This makes them ideal for any application that requires low distortion over a wide frequency with heavy loads. The THS3122 and THS3125 can drive four serially-terminated video lines while maintaining a differential gain error less than 0.03%. The hig.

Features

•1 Low Noise:
  – 2.9-pA/√Hz Noninverting Current Noise
  – 10.8-pA/√Hz Inverting Current Noise
  – 2.2-nV/√Hz Voltage Noise
  – 128-MHz ,
  –3-dB BW (RL = 50 Ω, RF = 470 Ω)
  – 1550-V/µs Slew Rate (G = 2, RL= 50Ω )
• High Output Current: 450 mA
• High Speed:
  – 128-MHz ,
  –3-dB BW (RL = 50 Ω, RF = 470 Ω)
  – 1550-V/µs Slew Rate (G = 2, RL= 50Ω )
  – 26-VPP Output Voltage, RL= 50 Ω
  –
  –80 dBc (1 MHz, 2 VPP, G = 2)
• Wide Output Swing:
  – 26-VPP Output Voltage, RL= 50 Ω
  –
  –80 dBc (1 MHz, 2 VPP, G = 2)
  – 370-µA Shutdown Supply Current
• Low Distortion:
  –
  –80 dBc (1 MHz, 2 VPP, G = 2)
  – 370-µA Shutdown Supply Curren.