LMH6642, LMH6643, LMH6644

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SNOS966P – MAY 2001 – REVISED MARCH 2013

LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers

Check for Samples: LMH6642, LMH6643, LMH6644

1

FEATURES

DESCRIPTION

The LMH664X family true single supply voltage

2

feedback amplifiers offer high speed (130MHz), low

Values Unless Specified).

distortion (

−62dBc), and exceptionally high output

•

current (approximately 75mA) at low cost and with

•

Supply Voltage Range 2.7V to 12.8V

reduced power consumption when compared against

existing devices with similar performance.

•

Input common mode voltage range extends to 0.5V

•

Supply Current (no load) 2.7mA/amp

•

Output Short Circuit Current +115mA/

−145mA

extends to within 40mV of either supply rail, allowing

•

Linear Output Current ±75mA

wide dynamic range especially desirable in low

•

voltage applications. The output stage is capable of

approximately 75mA in order to drive heavy loads.

Fast output Slew Rate (130V/µs) ensures large peak-

•

Output Voltage Swing 40mV from Rails

to-peak output swings can be maintained even at

•

Input Voltage Noise (100kHz) 17nV/

√Hz

higher speeds, resulting in exceptional full power

•

Input Current Noise (100kHz) 0.9pA/

√Hz

bandwidth of 40MHz with a 3V supply. These

characteristics, along with low cost, are ideal features

•

for

a

multitude

of

industrial

and

commercial

−62dBc

applications.

•

Settling Time 68ns

Careful attention has been paid to ensure device

•

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

stability under all operating voltages and modes. The

•

Overdrive Recovery 100ns

result is a very well behaved frequency response

characteristic (0.1dB gain flatness up the 12MHz

•

under 150

•

No Output Phase Reversal with CMVR

(typically 2dB maximum) for any gain setting and

Exceeded

under both heavy and light loads. This along with fast

settling time (68ns) and low distortion allows the

APPLICATIONS

device to operate well in ADC buffer, and high

frequency

filter

applications

as

well

as

other

•

Active Filters

applications.

•

CD/DVD ROM

This device family offers professional quality video

•

ADC Buffer Amp

performance with low DG (0.01%) and DP (0.01°)

•

Portable Video

characteristics.

Differential

Gain

and

Differential

•

Current Sense Buffer

Phase characteristics are also well maintained under

heavy loads (150

Ω) and throughout the output

(1)

Slew rate is the average of the rising and falling slew rates.

voltage range. The LMH664X family is offered in

(2)

single

(LMH6642),

dual

(LMH6643),

and

quad

duration is 1.5ms.

(LMH6644) options.

1

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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 © 2001–2013, 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.