June 2007
LMP7707/LMP7708/LMP7709
Precision, CMOS Input, RRIO, Wide Supply Range
Decompensated Amplifiers
General Description
Features
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.
Unless otherwise noted, typical values at VS = 5V.
Input offset voltage (LMP7707)
Input offset voltage (LMP7708/LMP7709) ±220 µV (max)
Input bias current
Input voltage noise
CMRR
Open loop gain
Temperature range
Gain bandwidth product (AV =10)
Stable at a gain of 10 or higher
Supply current (LMP7707)
Supply current (LMP7708)
Supply current (LMP7709)
Supply voltage range
Rail-to-rail input and output
±200 µV (max)
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±200 fA
9 nV/√Hz
130 dB
130 dB
−40°C to 125°C
14 MHz
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.
715 µA
1.5 mA
2.9 mA
2.7V to 12V
Applications
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.
High impedance sensor interface
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Battery powered instrumentation
High gain amplifiers
DAC buffer
Instrumentation amplifier
Active filters
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.
Open Loop Frequency Response
Increased Bandwidth for Same Supply Current2a02t03A76V4> 10
LMP® is a registered trademark of National Semiconductor Corporation.
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