Datasheet

OUT
V
S
-
+IN
V
S
+
-IN
+
-
1
2
3
6
4
DIS
5
465:
465:
V
S
+
2
3
4 5
6
7
N/C
-IN
+IN
V
S
-
OUT
N/C
-
+
1
8
DIS
465:
465:
LMH6704
www.ti.com SNOSAD0C –FEBRUARY 2005–REVISED MARCH 2013
LMH6704 650 MHz Selectable Gain Buffer with Disable
Check for Samples: LMH6704
1
FEATURES
DESCRIPTION
23
• Wideband operation
The LMH™6704 is a very wideband, DC coupled
– A
V
= +1, V
O
= 0.5 V
PP
650 MHz
selectable gain buffer designed specifically for wide
– A
V
= +2, V
O
= 0.5 V
PP
450 MHz
dynamic range systems requiring exceptional signal
fidelity. The LMH6704 includes on chip feedback and
– A
V
= +2, V
O
= 2 V
PP
400 MHz
gain set resistors, simplifying PCB layout while
• High output current ±90 mA
providing user selectable gains of +1, +2 and −1 V/V.
• Very low distortion
The LMH6704 provides a disable pin, which places
the amplifier in a high output impedance, low power
– 2
nd
/3
rd
harmonics (10 MHz, R
L
= 100Ω):
mode. The Disable pin may be allowed to float high.
−62/−78dBc
– Differential gain/Differential phase:
With a 650 MHz Small Signal Bandwidth (A
V
= +1),
0.02%/0.02°
full power gain flatness to 200 MHz, and excellent
Differential Gain and Phase, the LMH6704 is
• Low noise 2.3nV/√Hz
optimized for video applications. High resolution video
• High slew rate 3000 V/μs
systems will benefit from the LMH6704 ability to drive
• Supply current 11.5 mA
multiple video loads at low levels of differential gain
or differential phase distortion.
APPLICATIONS
The LMH6704 is constructed with proprietary high
• HDTV, NTSC and PAL video systems speed complementary bipolar process using proven
current feedback circuit architectures. It is available in
• Video switching and distribution
8 Pin SOIC and 6 Pin SOT-23 packages.
• ADC driver
• DAC buffer
• RGB driver
• High speed multiplexer
CONNECTION DIAGRAM
6 Pin SOT-23
Top View
8 Pin SOIC
Top View
See Package Number D0008A
See Package Number DBV0006A
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2LMH is a trademark of Texas Instruments.
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005–2013, 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.