LMH6554 Datasheet, PDF (1/24 Pages) National Semiconductor (TI) – 2.8 GHz Ultra Linear Fully Differential Amplifier

LMH6554
www.ti.com
SNOSB30O – OCTOBER 2008 – REVISED MARCH 2013
LMH6554 2.8 GHz Ultra Linear Fully Differential Amplifier
Check for Samples: LMH6554
FEATURES
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•2 Small Signal Bandwidth 2.8 GHz
• 2 V_PP Large Signal Bandwidth 1.8 GHz
• 0.1 dB Gain Flatness 830 MHz
• OIP3 @ 150 MHz 46.5 dBm
• HD2/HD3 @ 75 MHz -96 / -97 dBc
• Input Noise Voltage 0.9 nV/√Hz
• Input Noise Current 11 pA/√Hz
• Slew Rate 6200 V/μs
• Power 260mW
• Typical Supply Current 52 mA
• Package 14 Lead UQFN
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
DESCRIPTION
The LMH6554 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 device's low impedance differential output is
designed to drive ADC inputs and any intermediate
filter stage. The LMH6554 delivers 16-bit linearity up
to 75 MHz when driving 2V peak-to-peak into loads
as low as 200Ω.
The LMH6554 is fabricated in Texas Instruments'
advanced complementary BiCMOS process and is
available in a space saving 14 lead UQFN package
for higher performance.
Typical Application
R_S = 50:
91: 200:
V_S
a
C
AC-Coupled
Source
91:
30:
76.8:
0.1 PF _VCM
V⁺
+-
LMH6554
-+
V^-
0.1 PF
0.1 PF
200:
50:
50:
V_EN
ADC
Up To 16-Bit
Data Converter
V_CMO
Figure 1. Single to Differential ADC Driver
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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