127:

+

-

LMH6552

V

+

V

-

22 pF

127:

-

+

100:

100:

274:

274:

ADC14DS105

14-Bit

105

MSPS

620 nH

620 nH

49.9:

68.1:

68.1:

0.1 PF

50:

Single-Ended

AC-coupled

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LMH6552

SNOSAX9I – APRIL 2007 – REVISED JANUARY 2015

LMH6552 1.5-GHz Fully Differential Amplifier

1 Features

3 Description

The LMH6552 device is a high-performance, fully

1

•

1.5-GHz

−3 dB Small Signal

differential

amplifier

designed

to

provide

the

exceptional signal fidelity and wide large-signal

•

1.25-GHz

−3 dB Large Signal

bandwidth necessary for driving 8-bit to 14-bit high-

speed

data

acquisition

systems.

Using

TI's

proprietary differential current mode input stage

•

architecture, the LMH6552 allows operation at gains

•

450-MHz 0.1 dB Flatness

greater

than

unity

without

sacrificing

response

•

3800-V/µs Slew Rate

flatness, bandwidth, harmonic distortion, or output

•

10-ns Settling Time to 0.1%

noise performance.

–

−90 dB THD at 20 MHz

With external gain set resistors and integrated

–

−74 dB THD at 70 MHz

common mode feedback, the LMH6552 can be

configured as either a differential input to differential

•

20-ns Enable/Shutdown Pin

output or single-ended input to differential output gain

•

5-V to 12-V Operation

block. The LMH6552 can be AC- or DC-coupled at

the input which makes it suitable for a wide range of

2 Applications

applications, including communication systems and

high-speed oscilloscope front ends. The performance

•

Differential ADC Driver

of the LMH6552 driving an ADC14DS105 device is

•

Video Over Twisted Pair

86 dBc SFDR and 74 dBc SNR up to 40 MHz.

•

Differential Line Driver

The LMH6552 is available in an 8-pin SOIC package

•

Single End to Differential Converter

as well as a space-saving, thermally enhanced 8-pin

•

High-Speed Differential Signaling

WSON package for higher performance.

•

IF/RF Amplifier

Device Information(1)

•

Level Shift Amplifier

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

SAW Filter Buffer/Driver

SOIC (8)

4.90 mm × 3.91 mm

LMH6552

WSON (8)

3.00 mm × 2.50 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

4 Typical Application Schematic

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.