LMC6001AIH NSC [National Semiconductor], LMC6001AIH Datasheet - Page 7

• Manufacturer Part Number: LMC6001AIH
• Description: Ultra Ultra-Low Input Current Amplifier
• Manufacturer: NSC [National Semiconductor]

Typical Performance Characteristics
specified (Continued)
Output Characteristics
Sinking Current
Open Loop
Frequency Response
Non-Inverting Small
Signal Pulse Response
Applications Hints
AMPLIFIER TOPOLOGY
The LMC6001 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
DS011887-31
DS011887-25
DS011887-28
Gain and Phase Response
vs Temperature
(−55˚C to +125˚C)
Inverting Small Signal
Pulse Response
Non-Inverting Large
Signal Pulse Response
V
7
S
=
op-amps. These features make the LMC6001 both easier to
design with, and provide higher speed than products typi-
cally found in this 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
LMC6001.
±
7.5V, T
DS011887-29
DS011887-32
DS011887-26
A
= 25˚C, unless otherwise
Gain and Phase
Response vs Capacitive Load
with R
Inverting Large Signal
Pulse Response
Stability vs
Capacitive Load
L
= 500 k
www.national.com
DS011887-30
DS011887-33
DS011887-27