NF LI75A Low Noise Preamplifier
NF LI75A Low Noise Preamplifier
Description
The LI-75A is a preamplifier designed to increase measurement sensitivity when using the NF Look-in Amplifiers.
| Sensitivity | 100nV to 500mV |
| Frequency range | 0.5Hz to 200kHz |
| Input mode | Ground line may be switch-floated. |
| Input impedence | 100M ohm//40pF |
| Input referred noise | Less than 5nV/√Hz (at 1kHz) |
| Reference mode | AUTO, INT, EXT, EXT2F |
| Phase adjustment | Not required |
| Time constant | 1.25ms to 125s, 6dB/oct or 12dB/oct |
| Dynamic reserve | Maximum 60dB |
| DC output | Acosφ, Asinφ, A, φ, NOISE |
| Power requirements | AC100V, 120V, 220V or 240V switchable |
| Dimensions(mm) | 480(W) X 149(H) X 500(D) |
| Weight | approx.20kg |
