THS3122中文资料双路高输出电流 120MHz 放大器数据手册TI规格书

描述 Description

The THS3122 and THS3125 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.

特性 Features

• 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