具有关断状态的双路高输出电流的 120MHz 放大器
The THS3122 and are low-noise, high-speed 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 high output drive capability of the THS3122 and THS3125 enables the devices to drive 50-Ω loads with low distortion over a wide range of output voltages:
- .
- –80-dBc THD at 2 VPP
- .
- –75-dBc THD at 8 VPP
The THS3122 and THS3125 operate from ±5-V to ±15-V supply voltages while drawing as little as 7.2 mA of supply current per channel. The THS3125 offers a low-power shutdown mode, reducing the supply current to only 370 µA. The THS3122 and THS3125 are packaged in SOIC, HSOP, and HTSSOP packages.
- .
- 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= 50 Ω
- .
- 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= 50 Ω
- .
- 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 Current
- .
- Low-Power Shutdown Mode THS3125
- .
- 370-µA Shutdown Supply Current
- .
- Standard SOIC, HSOP PowerPAD™, and HTSSOP PowerPAD Packages