LMP7717 Datasheet, PDF (1/24 Pages) National Semiconductor (TI) – 88 MHz, Precision, Low Noise, 1.8V CMOS Input, Decompensated Operational Amplifier

November 6, 2007
LMP7717/LMP7718
88 MHz, Precision, Low Noise, 1.8V CMOS Input,
Decompensated Operational Amplifier
General Description
The LMP7717 (single) and the LMP7718 (dual) low noise,
CMOS input operational amplifiers offer a low input voltage
noise density of 5.8 nV/ while consuming only 1.15 mA
(LMP7717) of quiescent current. The LMP7717/LMP7718 are
stable at a gain of 10 and have a gain bandwidth (GBW)
product of 88 MHz. The LMP7717/LMP7718 have a supply
voltage range of 1.8V to 5.5V and can operate from a single
supply. The LMP7717/LMP7718 each feature a rail-to-rail
output stage. Both amplifiers are part of the LMP^® precision
amplifier family and are ideal for a variety of instrumentation
applications.
The LMP7717 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 femto-Am-
peres, and an input common mode voltage range, which
includes ground, make the LMP7717/LMP7718 ideal for low
power sensor applications where high speeds are needed.
The LMP7717/LMP7718 are manufactured using National’s
advanced VIP50 process. The LMP7717 is offered in either a
5-Pin SOT23 or an 8-Pin SOIC package. The LMP7718 is
offered in either the 8-Pin SOIC or the 8-Pin MSOP.
Features
(Typical 5V supply, unless otherwise noted)
■ ^{Input offset voltage}
■ ^{Input referred voltage noise}
■ ^{Input bias current}
■ ^{Gain bandwidth product}
■ ^{Supply voltage range}
±150 µV (max)
5.8 nV/√Hz
100 fA
88 MHz
1.8V to 5.5V
■ ^{Supply current per channel}
— LMP7717
— LMP7718
1.15 mA
1.30 mA
■ ^{Rail-to-Rail output swing}
— @ 10 kΩ load
25 mV from rail
— @ 2 kΩ load
45 mV from rail
■ ^{Guaranteed 2.5V and 5.0V performance}
■ ^{Total harmonic distortion}
0.04% @1 kHz, 600Ω
■ ^{Temperature range}
−40°C to 125°C
Applications
■ ^{ADC interface}
■ ^{Photodiode amplifiers}
■ ^{Active filters and buffers}
■ ^{Low noise signal processing}
■ ^{Medical instrumentation}
■ ^{Sensor interface applications}
Typical Application
30010869
Photodiode Transimpedance Amplifier
LMP^® is a registered trademark of National Semiconductor Corporation.
© 2007 National Semiconductor Corporation 300108
30010839
Input Referred Voltage Noise vs. Frequency
www.national.com