1FEATURES

2• (VS = 5V, Typical Values Unless Specified)

• Supply Current (No Load) 3.6mA

• Supply Current (Off Mode) 400μA

• Output Resistance (Closed Loop 1MHz) 0.186Ω

• −3dB BW (AV = 1) 190MHz

• Settling Time 33nsec

• Input Common Mode Voltage −0.2V to 4V

• Output Voltage Swing 40mV from Rails

• Linear Output Current 110mA

• Total Harmonic Distortion −60dBc

• Fully Characterized for 3V, 5V and ±5V

• No Output Phase Reversal with CMVR

Exceeded

• Excellent Overdrive Recovery

• Off Isolation 1MHz −70dB

• Differential Gain 0.12%

• Differential Phase 0.045°

APPLICATIONS

• Active Filters

• CD/DVD ROM

• ADC Buffer Amplifier

• Portable Video

• Current Sense Buffer

DESCRIPTION

The LMH6639 is a voltage feedback operational

amplifier with a rail-to-rail output drive capability of

110mA. Employing TI’s patented VIP10 process, the

LMH6639 delivers a bandwidth of 190MHz at a

current consumption of only 3.6mA. An input common

mode voltage range extending to 0.2V below the V−

and to within 1V of V+, makes the LMH6639 a true

single supply op-amp. The output voltage range

extends to within 30mV of either supply rail providing

the user with a dynamic range that is especially

desirable in low voltage applications.

The LMH6639 offers a slew rate of 172V/μs resulting in a full power bandwidth of approximately 28MHz.

The LMH6639 also offers protection for the input

transistors by using two anti-parallel diodes and a

series resistor connected across the inputs. The TON

value of 83nsec combined with a settling time of 33nsec makes this device ideally suited for

multiplexing applications (see application note for

details). Careful attention has been paid to ensure

device stability under all operating voltages and

modes. The result is a very well behaved frequency

response characteristic for any gain setting including

+1, and excellent specifications for driving video

cables including harmonic distortion of −60dBc,

differential gain of 0.12% and differential phase of

0.045°