LMH6622 Dual Wideband, Low Noise, 160MHz, Operational Amplifiers
February 2002
LMH6622
Dual Wideband, Low Noise, 160MHz, Operational
Amplifiers
General Description
The LMH6622 is a dual high speed voltage feedback opera-
tional amplifier specifically optimized for low noise. A voltage
noise specification of 1.6nV/
, a current noise specifi-
cation 1.5pA/
, a bandwidth of 160MHz, and a harmonic
distortion specification that exceeds 90dBc combine to make
the LMH6622 an ideal choice for the receive channel ampli-
fier in ADSL, VDSL, or other xDSL designs. The LMH6622
operates from
鹵
2.5V to
鹵
6V in dual supply mode and from
+5V to +12V in single supply configuration. The LMH6622 is
stable for A
V
鈮?/div>
2 or A
V
鈮?/div>
鈭?. The fabrication of the LMH6622
on National Semiconductor鈥檚 advanced VIP10 process en-
ables excellent (160MHz) bandwidth at a current consump-
tion of only 4.3mA/amplifier. Packages for this dual amplifier
are the 8-lead SOIC and the 8-lead MSOP.
Features
V
S
=
鹵
6V, T
A
= 25藲C, Typical values unless specified
n
Bandwidth (A
V
= +2)
160MHz
鹵
2.5V to
鹵
6V
n
Supply Voltage Range
+5V to +12
n
Slew rate
85V/碌s
n
Supply current
4.3mA/amp
n
Input common mode voltage
鈭?.75V to +5.7V
鹵
4.6V
n
Output Voltage Swing (R
L
= 100鈩?
n
Input voltage noise
1.6nV/
n
Input current noise
1.5pA/
n
Linear output current
90mA
n
Excellent harmonic distortion
90dBc
Applications
n
n
n
n
n
xDSL receiver
Low noise instrumentation front end
Ultrasound preamp
Active filters
Cellphone basestation
20029226
xDSL Analog Front End
漏 2002 National Semiconductor Corporation
DS200292
www.national.com
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