鈩?/div>
6704 is a very wideband, DC coupled progam-
mable gain buffer designed specifically for wide dynamic
range systems requiring exceptional signal fidelity. The
LMH6704 includes on chip feedback and gain set resistors,
simplifying PCB layout while providing user programmable
gains of +1, +2 and 鈭? V/V. The LMH6704 provides a disable
pin, which places the amplifier in a high output impedance,
low power mode. The Disable pin may be allowed to float
high.
With a 650 MHz Small Signal Bandwidth (A
V
= +1), full
power gain flatness to 200 MHz, and excellent Differential
Gain and Phase, the LMH6704 is optimized for video appli-
cations. High resolution video systems will benefit from the
LMH6704鈥檚 ability to drive multiple video loads at low levels
of differential gain or differential phase distortion.
The LMH6704 is constructed with National鈥檚 proprietary high
speed complementary bipolar process using National鈥檚
proven current feedback circuit architectures. It is available
in 8-Pin SOIC and 6-Pin SOT23 packages.
Features
n
Wideband operation
650 MHz
鈥?A
V
= +1, V
O
= 0.5 V
PP
450 MHz
鈥?A
V
= +2, V
O
= 0.5 V
PP
400 MHz
鈥?A
V
= +2, V
O
= 2 V
PP
鹵
90 mA
n
High output current
n
Very low distortion
鈥?2
nd
/3
rd
harmonics (10 MHz, R
L
= 100鈩?:
鈭?2/鈭?8
鈥?Differential gain/Differential phase:
0.02%/0.02藲
n
Low noise
2.3nV/
n
High slew rate
3000 V/碌s
n
Supply current
11.5 mA
Applications
n
n
n
n
n
n
HDTV, NTSC & PAL video systems
Video switching and distribution
ADC driver
DAC buffer
RGB driver
High speed multiplexer
Connection Diagram
8-Pin SOIC
6-Pin SOT23
20103634
Top View
20103613
Top View
Ordering Information
Package
8-Pin SOIC
6-Pin SOT23
Part Number
LMH6704MA
LMH6704MAX
LMH6704MF
LMH6704MFX
Package Marking
LMH6704MA
B07A
Transport Media
95 Units Rail
2.5k Units Tape and Reel
1k Units Tape and Reel
3k Units Tape and Reel
NSC Drawing
M08A
MF06A
LMH
鈩?/div>
is a trademark of National Semiconductor Corporation.
漏 2005 National Semiconductor Corporation
DS201036
www.national.com
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