LMC6081AIM National Semiconductor, LMC6081AIM Datasheet - Page 6

• Manufacturer Part Number: LMC6081AIM
• Description: Operational Amplifier (Op-Amp) IC
• Manufacturer: National Semiconductor

Specifications of LMC6081AIM

• No. Of Amplifiers: 1
• Slew Rate: 1.5V/µs
• No. Of Pins: 8
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Package / Case: 8-NSOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Typical Performance Characteristics
specified (Continued)
Gain and Phase
Response vs Capacitive Load
with R
Inverting Small Signal
Pulse Response
Non-Inverting Large
Signal Pulse Response
Applications Hints
AMPLIFIER TOPOLOGY
The LMC6081 incorporates a novel op-amp design topology
that enables it to maintain rail-to-rail output swing even when
driving a large load. Instead of relying on a push-pull unity
gain output buffer stage, the output stage is taken directly
from the internal integrator, which provides both low output
impedance and large gain. Special feed-forward compensa-
tion design techniques are incorporated to maintain stability
over a wider range of operating conditions than traditional
L
= 600
DS011423-30
DS011423-33
DS011423-27
Gain and Phase
Response vs Capacitive Load
with R
Inverting Large Signal
Pulse Response
Stability vs Capacitive
Load, R
L
L
= 500 k
= 600
V
6
S
=
micropower op-amps. These features make the LMC6081
both easier to design with, and provide higher speed than
products typically found in this ultra-low power class.
COMPENSATING FOR INPUT CAPACITANCE
It is quite common to use large values of feedback resis-
tance for amplifiers with ultra-low input current, like the
LMC6081.
±
7.5V, T
DS011423-31
DS011423-34
DS011423-28
A
= 25˚C, Unless otherwise
Open Loop
Frequency Response
Non-Inverting Small
Signal Pulse Response
Stability vs Capacitive
Load R
L
= 1 M
DS011423-32
DS011423-35
DS011423-29