7230A DSP Lock-in Amplifier
- lock-in amplifier in a compact and low-noise design
- a display-free solution that delivers a high-quality instrument at an affordable price point
- control from any device with a web browser (PC, smartphone, tablet) via Ethernet network
- programmable via USB and RS232 as well
- warranty: 2 years
Parameters and specifications
| input modes | A, B, differential (A-B) |
| frequency range | 1 mHz – 250 kHz |
| FS (Full-Scale) sensitivities | 1-2-5 sequence in the range from 2 nV / 2 fA to 1 V / 1 µA (10 nA) |
| input impedance | FET: 10 MΩ // 25 pF, AC or DC coupling bipolar: 10 kΩ // 25 pF, DC coupling |
| max. input voltage | ±12.0 V |
| voltage noise | 5 nV/√Hz at 1 kHz (FET) |
| CMRR | > 100 dB at 1 kHz |
| THD voltage distortion | -90 dB |
- 1 MSa/s sampling rate
- multiple filtering stages, including a fast FIR filter implemented in FPGA
- internal or external reference signal
- auxiliary analog and digital inputs and DAC outputs
- 100k-point internal memory for recording the selected measurement output or auxiliary signal
- voltage or current input modes
- harmonic measurement up to 127 × F
- additional modes available, including dual harmonic, dual reference, virtual reference, and “tandem” demodulation
- integrated DDS sine oscillator also available for experiment excitation (OSC OUT output) with sweep capability
- VCO control (modulation) of the internal oscillator via an external signal
- Ethernet, USB, and RS232 communication interfaces with extensive software support including LabVIEW drivers
Downloads and links
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