5V

V

+

75:

75:

75:

INPUT

1k

1k

SD

V

-

+

-

SHUTDOWN INPUT

OUT

10n

100n

LMH6639

www.ti.com

SNOS989G – JANUARY 2002 – REVISED MARCH 2013

LMH6639 190MHz Rail-to-Rail Output Amplifier with Disable

Check for Samples: LMH6639

1

FEATURES

DESCRIPTION

The LMH6639 is a voltage feedback operational

2

•

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

•

Supply Current (No Load) 3.6mA

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

•

Supply Current (Off Mode) 400

μA

LMH6639 delivers a bandwidth of 190MHz at a

current consumption of only 3.6mA. An input common

•

Output Resistance (Closed Loop 1MHz) 0.186

Ω

•

•

Settling Time 33nsec

single supply op-amp. The output voltage range

extends to within 30mV of either supply rail providing

•

Input Common Mode Voltage

−0.2V to 4V

the user with a dynamic range that is especially

•

Output Voltage Swing 40mV from Rails

desirable in low voltage applications.

•

Linear Output Current 110mA

The LMH6639 offers a slew rate of 172V/

μs resulting

•

Total Harmonic Distortion

−60dBc

in a full power bandwidth of approximately 28MHz.

•

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

The LMH6639 also offers protection for the input

transistors by using two anti-parallel diodes and a

•

No Output Phase Reversal with CMVR

Exceeded

value of 83nsec combined with a settling time of

•

Excellent Overdrive Recovery

33nsec

makes

this

device

ideally

suited

for

•

Off Isolation 1MHz

−70dB

multiplexing applications (see application note for

details). Careful attention has been paid to ensure

•

Differential Gain 0.12%

device stability under all operating voltages and

•

Differential Phase 0.045°

modes. The result is a very well behaved frequency

response characteristic for any gain setting including

APPLICATIONS

+1, and excellent specifications for driving video

cables including harmonic distortion of

−60dBc,

•

Active Filters

differential gain of 0.12% and differential phase of

•

CD/DVD ROM

0.045°

•

ADC Buffer Amplifier

•

Portable Video

•

Current Sense Buffer

Figure 1. Typical Single Supply Schematic

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2002–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.