LMH6550 Datasheet, PDF (1/33 Pages) National Semiconductor (TI) – Differential, High Speed Op Amp

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LMH6550
SNOSAK0I – DECEMBER 2004 – REVISED JANUARY 2015
LMH6550 Differential, High-Speed Operational Amplifier
1 Features
•1 400 MHz −3-dB Bandwidth (V_OUT = 0.5 V_PP)
• 90 MHz 0.1-dB Bandwidth
• 3000 V/µs Slew Rate
• 8 ns Settling Time to 0.1%
• −92/−103 dB HD2/HD3 at 5 MHz
• 10 ns Shutdown/Enable
2 Applications
• Differential AD Driver
• Video Over Twisted-Pair
• Differential Line Driver
• Single End to Differential Converter
• High-Speed Differential Signaling
• IF/RF Amplifier
• SAW Filter Buffer/Driver
3 Description
The LMH6550 device is a high-performance voltage
feedback differential amplifier. The LMH6550 has the
high speed and low distortion necessary for driving
high-performance ADCs as well as the current
handling capability to drive signals over balanced
transmission lines like CAT 5 data cables. The
LMH6550 can handle a wide range of video and data
formats.
With external gain set resistors, the LMH6550 can be
used at any desired gain. Gain flexibility coupled with
high speed makes the LMH6550 suitable for use as
an IF amplifier in high-performance communications
equipment.
The LMH6550 is available in the space-saving SOIC
and VSSOP packages.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMH6550
SOIC (8)
VSSOP (8)
4.90 mm × 3.91 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Typical Application Schematic
R_F
A_V, R_IN
V⁺
R_{S VI}
R_G
+
V_S
a ^RT
V_CM
-
R_M ^RG
V^-
R_F
R_O
-
V_O
+
R_O
IN-
ADC
IN+
For R_M  R_G :
A_v
V_{O #} R_F
V_I R_G
R_IN
#
2R_G(1 A_v )
2  A_v
DesignTarget :
1) Set R_T
1
11

R_S R_IN
2) Set R_M R_T || R_S
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.