LMP2015MF/NOPB National Semiconductor, LMP2015MF/NOPB Datasheet - Page 13

• Manufacturer Part Number: LMP2015MF/NOPB
• Description: IC OP AMP SGL R-R PREC SOT23-5
• Manufacturer: National Semiconductor
• Series: LMP®r

Specifications of LMP2015MF/NOPB

• Amplifier Type: General Purpose
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 4 V/µs
• Gain Bandwidth Product: 3MHz
• Current - Input Bias: 3pA
• Voltage - Input Offset: 0.12µV
• Current - Supply: 930µA
• Current - Output / Channel: 17mA
• Voltage - Supply, Single/dual (±): 2.7 V ~ 5.25 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• -3db Bandwidth: -
• Other names: LMP2015MF; LMP2015MF; LMP2015MFTR

B) Fast large signal settling time to 0.01% of final value
C) No flicker (1/f) noise means unsurpassed data accuracy
all conversion error over full operation temperature and
30 year life of the part (operating at 50°C) would be less
than 5 LSBs.
(1.4 μs) allows 12-bit accuracy at a sampling rate of 100
kHz or more.
over any measurement period of time, no matter how
long. Consider the following op amp performance, based
on a typical low noise, high performance commercially-
available device, for comparison:
This example will result in about 2.2 mV
output noise contribution due to the op amp alone, com-
Op amp flatband noise = 8 nV/
1/f corner frequency = 100 Hz
A
Measurement time = 100 sec
Bandwidth = 2 Hz
V
= 2000
PP
FIGURE 8. DC Coupled ADC Driver
(1.9 LSB) of
13
D) Copper leadframe construction minimizes any thermo-
E) Rail-to-Rail output swing maximizes the ADC dynamic
pared to about 594 μV
op amp is replaced with the LMP2015 which has no 1/f
contribution. If the measurement time is increased from
100 seconds to 1 hour, the improvement realized by using
the LMP2015 would be a factor of about 4.8 times
(2.86 mV
This is mainly because the LMP2015 accuracy is not
compromised by increasing the observation time.
couple effects which would degrade low level/high gain
data conversion application accuracy (see discussion in
"The Benefits of the LMP2015" section).
range in 5V single supply converter applications.
7and
LMP2015 used as an ADC driver.
Figure 8
PP
compared to 596 μV when LMP2015 is used).
are typical block diagrams showing the
PP
(less than 0.5 LSB) when that
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Figure