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PDF LMH6704 Data sheet ( Hoja de datos )
| Número de pieza | LMH6704 | |
| Descripción | 650 MHz Progammable Gain Buffer with Disable | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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February 2005
LMH6704
650 MHz Progammable Gain Buffer with Disable
General Description
The LMH™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 −1 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 (AV = +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’s ability to drive multiple video loads at low levels
of differential gain or differential phase distortion.
The LMH6704 is constructed with National’s proprietary high
speed complementary bipolar process using National’s
proven current feedback circuit architectures. It is available
in 8-Pin SOIC and 6-Pin SOT23 packages.
Features
n Wideband operation
— AV = +1, VO = 0.5 VPP
— AV = +2, VO = 0.5 VPP
— AV = +2, VO = 2 VPP
n High output current
650 MHz
450 MHz
400 MHz
±90 mA
n Very low distortion
— 2nd/3rd harmonics (10 MHz, RL = 100Ω):
−62/−78
— Differential gain/Differential phase:
0.02%/0.02˚
n Low noise
2.3nV/
n High slew rate
3000 V/µs
n Supply current
11.5 mA
Applications
n HDTV, NTSC & PAL video systems
n Video switching and distribution
n ADC driver
n DAC buffer
n RGB driver
n High speed multiplexer
Connection Diagram
8-Pin SOIC
6-Pin SOT23
Top View
20103634
Ordering Information
Package
8-Pin SOIC
6-Pin SOT23
Part Number
LMH6704MA
LMH6704MAX
LMH6704MF
LMH6704MFX
Package Marking
LMH6704MA
B07A
Top View
20103613
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
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LMH™ is a trademark of National Semiconductor Corporation.
© 2005 National Semiconductor Corporation DS201036
www.national.com
1 page  
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Typical Performance Characteristics (TA = 25˚C, VS = ±5V, RL = 100Ω, AV = +2, VOUT = 0.5 VPP;
Unless Specified). (Continued)
Large Signal Pulse Response
Small Signal Pulse Response
20103620
Harmonic Distortion vs. Frequency
20103621
Harmonic Distortion vs. Load
20103622
Harmonic Distortion vs. Output Voltage
DG/DP
20103623
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20103624
5
20103633
www.national.com
5 Page 
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Physical Dimensions inches (millimeters)
unless otherwise noted
8-Pin SOIC
NS Package Number M08A
6-Pin SOT23
NS Package Number MF06A
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11
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LMH6704.PDF ] | |
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