LMH6672 - Dual, High Output Current, High Speed Op Amp

The LMH6672 is a low cost, dual high speed op amp capable of driving signals to within 1 V of the power supply rails. It features the high output drive with low distortion required for the demanding application of a single supply xDSL line driver.

When connected as a differential output driver, the LMH6672 can drive a 50-Ω load to 16.8 V_PP swing with only −98 dBc distortion, fully supporting the peak upstream power levels for upstream full-rate ADSL. The LMH6672 is fully specified for operation with 5-V and 12-V supplies. Ideal for PCI modem cards and xDSL modems.

• High Output Drive
  •  19.2 V_PP Differential Output Voltage,
    R_L = 50 Ω
  •  9.6 V_PP Single-ended Output Voltage,
    R_L = 25 Ω
• High Output Current
  •  ±200 mA @ V_O = 9 V_PP, V_S = 12 V
• Low Distortion
  •  105 dB SFDR @ 100 kHz, V_O = 8.4 V_PP,
    R_L = 25 Ω
  •  98 dB SFDR @ 1MHz, V_O = 2 V_PP,
    R_L = 100 Ω
• High Speed
  •  90 MHz 3 dB Bandwidth (G = 2)
  •  135 V/µs Slew Rate
• Low Noise
  •  3.1 nV/√Hz: Input Noise Voltage
  •  1.8 pA/√Hz: Input Noise Current
• Low Supply Current: 7.2mA/amp
• Single-supply Operation: 5 V to 12 V
• Stable for Gain of +2V/V or Higher
• Available in 8-pin SOIC and SO PowerPAD (DDA)