LMP7707 Datasheet, PDF (1/24 Pages) National Semiconductor (TI) – Precision, CMOS Input, RRIO, Wide Supply Range Decompensated Amplifiers

June 2007
LMP7707/LMP7708/LMP7709
Precision, CMOS Input, RRIO, Wide Supply Range
Decompensated Amplifiers
General Description
The LMP7707/LMP7708/LMP7709 devices are single, dual,
and quad low offset voltage, rail-to-rail input and output pre-
cision amplifiers which each have a CMOS input stage and a
wide supply voltage range. The LMP7707/LMP7708/
LMP7709 are part of the LMP^® precision amplifier family and
are ideal for sensor interface and other instrumentation ap-
plications. These decompensated amplifiers are stable at a
gain of 6 and higher.
The guaranteed low offset voltage of less than ±200 µV along
with the guaranteed low input bias current of less than ±1 pA
make the LMP7707/LMP7708/LMP7709 ideal for precision
applications. The LMP7707/LMP7708/LMP7709 are built uti-
lizing VIP50 technology, which allows the combination of a
CMOS input stage and a supply voltage range of 12V with
rail-to-rail common mode voltage capability. The LMP7707/
LMP7708/LMP7709 are the perfect choice in many applica-
tions where conventional CMOS parts cannot operate due to
the voltage conditions.
The unique design of the rail-to-rail input stage of each of the
LMP7707/LMP7708/LMP7709 significantly reduces the CM-
RR glitch commonly associated with rail-to-rail input ampli-
fiers. Both sides of the complimentary input stage have been
trimmed, thereby reducing the difference between the NMOS
and PMOS offsets. The output swings within 40 mV of either
rail to maximize the signal dynamic range in applications re-
quiring low supply voltage.
The LMP7707 is offered in the space saving 5-Pin SOT23
package, the LMP7708 is offered in the 8-Pin MSOP and the
quad LMP7709 is offered in the 14-Pin TSSOP package.
These small packages are ideal solutions for area con-
strained PC boards and portable electronics.
Features
Unless otherwise noted, typical values at V_S = 5V.
■ ^{Input offset voltage (LMP7707)}
±200 µV (max)
■ ^{Input offset voltage (LMP7708/LMP7709) ±220 µV (max)}
■ ^{Input bias current}
±200 fA
■ ^{Input voltage noise}
9 nV/√Hz
■ ^CMRR
130 dB
■ ^{Open loop gain}
130 dB
■ ^{Temperature range}
−40°C to 125°C
■ ^{Gain bandwidth product (A}_V ⁼¹⁰⁾
14 MHz
■ ^{Stable at a gain of 10 or higher}
■ ^{Supply current (LMP7707)}
715 µA
■ ^{Supply current (LMP7708)}
1.5 mA
■ ^{Supply current (LMP7709)}
2.9 mA
■ ^{Supply voltage range}
2.7V to 12V
■ ^{Rail-to-rail input and output}
Applications
■ ^{High impedance sensor interface}
■ ^{Battery powered instrumentation}
■ ^{High gain amplifiers}
■ ^{DAC buffer}
■ ^{Instrumentation amplifier}
■ ^{Active filters}
Open Loop Frequency Response
20203764
Increased Bandwidth for Same Supply Current at A_V> 10
LMP^® is a registered trademark of National Semiconductor Corporation.
© 2007 National Semiconductor Corporation 202037
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