型号THS3122
品牌
分类高速运算放大器 (GBW ≥ 50MHz)
描述双路高输出电流 120MHz 放大器
相关操作
产品概述

参数

Number of channels 2
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 30
Iout (typ) (A) 0.44
GBW (typ) (MHz) 138
Slew rate (typ) (V/µs) 1550
Vos (offset voltage at 25°C) (max) (mV) 10
Offset drift (typ) (V/°C) 0.00001
Iq per channel (typ) (mA) 7.2
Rating Catalog
Operating temperature range (°C) -40 to 85, 0 to 70
Input bias current (max) (pA) 2000000
CMRR (typ) (dB) 67
Rail-to-rail No
Architecture Current FB

封装 | 引脚 | 尺寸

HSOIC (DDA) 8 29.4 mm² 4.9 x 6
SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • 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

说明

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.