LMH6552 Datasheet, PDF (1/38 Pages) Texas Instruments – 1.5-GHz Fully Differential Amplifier

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LMH6552
SNOSAX9I – APRIL 2007 – REVISED JANUARY 2015
LMH6552 1.5-GHz Fully Differential Amplifier
1 Features
•1 1.5-GHz −3 dB Small Signal
Bandwidth at A_V = 1
• 1.25-GHz −3 dB Large Signal
Bandwidth at A_V = 1
• 800-MHz Bandwidth at A_V = 4
• 450-MHz 0.1 dB Flatness
• 3800-V/µs Slew Rate
• 10-ns Settling Time to 0.1%
– −90 dB THD at 20 MHz
– −74 dB THD at 70 MHz
• 20-ns Enable/Shutdown Pin
• 5-V to 12-V Operation
2 Applications
• Differential ADC Driver
• Video Over Twisted Pair
• Differential Line Driver
• Single End to Differential Converter
• High-Speed Differential Signaling
• IF/RF Amplifier
• Level Shift Amplifier
• SAW Filter Buffer/Driver
3 Description
The LMH6552 device is a high-performance, fully
differential amplifier designed to provide the
exceptional signal fidelity and wide 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
greater than unity without sacrificing response
flatness, bandwidth, harmonic distortion, or output
noise performance.
With external gain set resistors and integrated
common mode feedback, the LMH6552 can be
configured as either a differential input to differential
output or single-ended input to differential output gain
block. The LMH6552 can be AC- or DC-coupled at
the input which makes it suitable for a wide range of
applications, including communication systems and
high-speed oscilloscope front ends. The performance
of the LMH6552 driving an ADC14DS105 device is
86 dBc SFDR and 74 dBc SNR up to 40 MHz.
The LMH6552 is available in an 8-pin SOIC package
as well as a space-saving, thermally enhanced 8-pin
WSON package for higher performance.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMH6552
SOIC (8)
WSON (8)
4.90 mm × 3.91 mm
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
50:
Single-Ended
AC-coupled
Source
68.1:
127:
49.9:
0.1 PF
127:
68.1:
274:
V⁺
ADC14DS105
100: ^{620 nH}
-+
14-Bit
LMH6552
22 pF
105
+-
V^{- 100: 620 nH}
MSPS
V_REF
274:
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.