May 2006
LMV796/LMV797
17 MHz, Low Noise, CMOS Input, 1.8V Operational
Amplifiers
General Description
The LMV796 (Single) and the LMV797 (Dual) low noise,
CMOS input operational amplifiers offer a low input voltage
noise density of 5.8 nV/
while consuming only 1.15 mA
(LMV796) of quiescent current. The LMV796 and LMV797
are unity gain stable op amps and have gain bandwidth of 17
www.DataSheet4U.cMoHmz. The LMV796/ LMV797 have a supply voltage range of
1.8V to 5.5V and can operate from a single supply. The
LMV796/LMV797 each feature a rail-to-rail output stage ca-
pable of driving a 600Ω load and sourcing as much as 60 mA
of current.
The LMV796 family provides optimal performance in low
voltage and low noise systems. A CMOS input stage, with
typical input bias currents in the range of a few femtoAm-
peres, and an input common mode voltage range, which
includes ground, make the LMV796 and the LMV797 ideal
for low power sensor applications.
The LMV796/LMV797 are manufactured using National’s
advanced VIP50 process and are offered in a 5-pin SOT23
and an 8-pin MSOP package respectively.
Features
(Typical 5V supply, unless otherwise noted)
n Input referred voltage noise
5.8 nV/
n Input bias current
100 fA
n Unity gain bandwidth
17 MHz
n Supply current per channel
— LMV796
1.15 mA
— LMV797
1.30 mA
n Rail-to-rail output swing
— @ 10 kΩ load
25 mV from rail
— @ 2 kΩ load
35 mV from rail
n Guaranteed 2.5V and 5.0V performance
n Total harmonic distortion
0.01% @1 kHz, 600Ω
n Temperature range
−40˚C to 125˚C
Applications
n Photodiode amplifiers
n Active filters and buffers
n Low noise signal processing
n Medical instrumentation
n Sensor interface applications
Typical Application
20183569
Photodiode Transimpedance Amplifier
20183539
Input Referred Voltage Noise vs. Frequency
© 2006 National Semiconductor Corporation DS201835
www.national.com
