1 Features
1• High Output Drive
– 19.2 VPP Differential Output Voltage,
RL = 50 Ω
– 9.6 VPP Single-ended Output Voltage,
RL = 25 Ω
• High Output Current
– ±200 mA @ V O = 9 VPP, VS = 12 V
• Low Distortion
– 105 dB SFDR @ 100 kHz, VO = 8.4 VPP,
RL = 25Ω
– 98 dB SFDR @ 1MHz, VO = 2 VPP,
RL = 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)

2 Applications
• ADSL PCI Modem Cards
• xDSL External Modems
• Line Drivers

3 Description
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 VPP 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.