Features
(Max limit, 25°C unless otherwise noted)
| • | Input current (100% tested): 25 fA |
| • | Input current over temp.: 2 pA |
| • | Low power: 750 μA |
| • | Low VOS: 350 μV
|
| • | Low noise: 22 nV/
√
^Hz @1 kHz Typ.
|
Description Featuring 100% tested input currents of 25 fA max., low operating power, and ESD protection of 2000V, the LMC6001 achieves
a new industry benchmark for low input current operational amplifiers. By tightly controlling the molding compound, National
is able to offer this ultra-low input current in a lower cost molded package.
To avoid long turn-on settling times common in other low input current opamps, the LMC6001A is tested 3 times in the first
minute of operation. Even units that meet the 25 fA limit are rejected if they drift.
Because of the ultra-low input current noise of 0.13 fA/
√
^Hz, the LMC6001 can provide almost noiseless amplification of high resistance signal sources. Adding only 1 dB at 100 kΩ, 0.1
dB at 1 MΩ and 0.01 dB or less from 10 MΩ to 2,000 MΩ, the LMC6001 is an almost noiseless amplifier.
The LMC6001 is ideally suited for electrometer applications requiring ultra-low input leakage such as sensitive photodetection
transimpedance amplifiers and sensor amplifiers. Since input referred noise is only 22 nV/
√
^Hz, the LMC6001 can achieve higher signal to noise ratio than JFET input type electrometer amplifiers. Other applications of
the LMC6001 include long interval integrators, ultra-high input impedance instrumentation amplifiers, and sensitive electrical-field
measurement circuits.
Applications
| • | Electrometer amplifier |
| • | Photodiode preamplifier |
| • | Ion detector |
| • | A.T.E. leakage testing |
|
Also Recommended
| LMP7701▲ | Higher Bandwidth, Lower Voltage Offset, Better CMRR |
| LMP7721▲ | Lower Input Current |
|
|
LMC6001
LMP7701
