Zurich Instruments
VHFLI 50 MHz / 200 MHz Lock-in Amplifier Lock-in Amplifier
Key Features
- Frequency Range: DC – 50 MHz (200 MHz with the VHF-F200M)
- Fast demodulation time constant
- Low input noise floor
- Up to 6 output and 6 input channels, served by
up to 8 independent oscillators and demodulators - LabOne® instrument control software
for easy setup of complex workflows
Product Specifications
| Product Specifications | |
|---|---|
| Signal Inputs & Outputs | Number of input channels: 2 voltage (differential/single-ended) + 2 current |
| Frequency range: DC – 50 MHz With VHF-F200M: DC – 200 MHz | |
| Input impedance: 50 Ω or 10 MΩ | |
| Input voltage noise floor：≤ 3 nV/√Hz (>30 kHz) | |
| Input current noise floor：約 50 fA/√Hz @ 1 kHz | |
| Dynamic reserve：120 dB | |
| Input voltage ranges：±5 mV – ±2 V | |
| Input current ranges：10 nA – 10 mA | |
| Number of output channels：2 voltage (differential/single-ended) | |
| Output ranges：±5 mV – ±5 V | |
| Demodulators | Number of demodulators：2 dual-phase (8 with VHF-MD) |
| Number of oscillators：2 (8 with VHF-MD) | |
| Continuous data rate： 2 MSa/s (max) | |
| Triggered data rate： 25 MSa/s (max) | |
| Time constant：14 ns – 21 s | |
| Demodulator bandwidth：3.2 mHz – 11 MHz | |
| Filter slopes (dB/Oct)：6、12、18、24 | |
| Auxiliary & Others | Auxiliary outputs：4 channels, ±100 mV – ±10 V, >30 MHz |
| Auxiliary inputs：2 channels, ±100 mV – ±10 V, >150 MHz | |
| Triggers：2 inputs, 2 outputs | |
| Clock (in/out)：10 MHz or 100 MHz | |
| Connectivity： USB 3.1 (USB-C), LAN 1Gb | |
| General | 尺寸：Dimensions: 32.5 × 44.5 × 10 cm (with handle), 19-inch rack compatible |
| Power supply：AC 100 – 240 V, 50/60 Hz | |
| Weight：6.3 kg |
