Datasheet
V
+
1
2
3
4
5
6
7
8
EF
CL
V
IN
V
-
V
OUT
GND
NC
G = 1
G = 1
1
2 3
4 5
6 7
V
IN
GND
V
OUT
V
+
V
-
EF
CL
LMH6321
www.ti.com
SNOSAL8C –APRIL 2006–REVISED MARCH 2013
LMH6321 300 mA High Speed Buffer with Adjustable Current Limit
Check for Samples: LMH6321
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FEATURES
DESCRIPTION
The LMH6321 is a high speed unity gain buffer that
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• High Slew Rate 1800 V/μs
slews at 1800 V/µs and has a small signal bandwidth
• Wide Bandwidth 110 MHz
of 110 MHz while driving a 50Ω load. It can drive
• Continuous Output Current ±300 mA
±300 mA continuously and will not oscillate while
driving large capacitive loads.
• Output Current Limit Tolerance ±5 mA ±5%
• Wide Supply Voltage Range 5V to ±15V
The LMH6321 features an adjustable current limit.
The current limit is continuously adjustable from 10
• Wide Temperature Range −40°C to +125°C
mA to 300 ma with a ±5 mA ±5% accuracy. The
• Adjustable Current Limit
current limit is set by adjusting an external reference
• High Capacitive Load Drive
current with a resistor. The current can be easily and
instantly adjusted, as needed by connecting the
• Thermal Shutdown Error Flag
resistor to a DAC to form the reference current. The
sourcing and sinking currents share the same current
APPLICATIONS
limit.
• Line Driver
The LMH6321 is available in a space saving 8-pin SO
• Pin Driver
PowerPAD or a 7-pin DDPAK power package. The
• Sonar Driver
SO PowerPAD package features an exposed pad on
the bottom of the package to increase its heat sinking
• Motor Control
capability. The LMH6321 can be used within the
feedback loop of an operational amplifier to boost the
current output or as a stand alone buffer.
CONNECTION DIAGRAM
A. V
−
pin is connected to tab on back of each package.
Figure 1. 8-Pin SO PowerPAD Figure 2. 7-Pin DDPAK
(A)
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.