1 Features

1• Small-Signal Bandwidth 2.8 GHz

• 2 V PP Large-Signal Bandwidth 1.8 GHz

• 0.1 dB Gain Flatness 830 MHz high•

OIP3 at 150 MHz 46.5 dBm

• HD2/HD3 at 75 MHz –96 / –97 dBc

• Input Noise Voltage 0.9 nV/√Hz

• Input Noise Current 11 pA/√Hz

• Slew Rate 6200 V/μs

• Power 260 mW

• Typical Supply Current 52 mA

• 14-Lead UQFN Package

2 Applications

• Differential ADC Driver

• Single-Ended to Differential Converter

• High-Speed Differential Signaling

• IF/RF and Baseband Gain Blocks

• SAW Filter Buffer/Driver

• Oscilloscope Probes

• Automotive Safety Applications

• Video Over Twisted Pair

• Differential Line Driver

3 Description

The LMH6554 device is a high-performance fully

differential amplifier designed to provide the

exceptional signal fidelity and wide large-signal

bandwidth necessary for driving 8- to 16-bit high•

speed data acquisition systems. Using TI’s

proprietary differential current mode input stage architecture, the LMH6554 has unity gain, small-

signal bandwidth of 2.8 GHz and allows operation at

gains greater than unity without sacrificing response

flatness, bandwidth, harmonic distortion, or output

noise performance.

The low-impedance differential output of the device is

designed to drive ADC inputs and any intermediate

filter stage. The LMH6554 delivers 16-bit linearity up

to 75 MHz when driving 2-V peak-to-peak into loads

as low as 200 Ω.

The LMH6554 is fabricated in TI's advanced

complementary BiCMOS process and is available in a

space-saving 14-lead UQFN package for higher

performance.