LMH6559
www.ti.com
SNOSA57C –APRIL 2003–REVISED MARCH 2013
LMH6559 High-Speed, Closed-Loop Buffer
Check for Samples: LMH6559
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FEATURES
DESCRIPTION
The LMH6559 is a high-speed, closed-loop buffer
designed for applications requiring the processing of
very high frequency signals. While offering a small
signal bandwidth of 1750MHz, and an ultra high slew
rate of 4580V/μs the LMH6559 consumes only 10mA
of quiescent current. Total harmonic distortion into a
load of 100Ω at 20MHz is −52dBc. The LMH6559 is
configured internally for a loop gain of one. Input
resistance is 200kΩ and output resistance is but
1.2Ω. These characteristics make the LMH6559 an
ideal choice for the distribution of high frequency
signals on printed circuit boards. Differential gain and
phase specifications of 0.06% and 0.02° respectively
at 3.58MHz make the LMH6559 well suited for the
buffering of video signals.
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Closed-Loop Buffer
1750MHz Small Signal Bandwidth
4580V/μs Slew Rate
0.06% / 0.02° Differential Gain/Phase
−52dBc THD at 20MHz
Single Supply Operation (3V Min.)
75mA Output Current
APPLICATIONS
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Video Switching and Routing
Test Point Drivers
High Frequency Active Filters
Wideband DC Clamping Buffers
High-Speed Peak Detector Circuits
Transmission Systems
The device is fabricated on Texas Instruments' high-
speed VIP10 process using TI's proven high
performance circuit architectures.
Telecommunications
Test Equipment and Instrumentation
Typical Schematic
V
CC
10nF
10kW
1
100nF
100nF
50W
4
8
LMH6559
5
50W
10kW
Figure 1.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
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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.
Copyright © 2003–2013, Texas Instruments Incorporated