Stanford Research Systems SR830 DSP Lock-In Amplifier
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Stanford Research Systems SR830 is a DSP lock-in amplifier with >100 dB dynamic reserve, 1 mHz to 102.4 kHz range, and 6 nV/√Hz input noise.
Product details
| Model | SR830 |
| Manufacturer | Stanford Research Systems |
| Category | RF Amplifiers |
| Availability | Made to order |
Description
Overview
The Stanford Research Systems SR830 is a digital lock-in amplifier based on advanced digital signal processing (DSP) technology. It simultaneously displays the magnitude and phase of a signal and provides over 100 dB of drift-free dynamic reserve. Unlike conventional lock-in amplifiers that use analog demodulators, the SR830 uses digital demodulation for superior accuracy, stability, and freedom from phase error and drift.
Key Features
- Frequency range: 1 mHz to 102.4 kHz
- Dynamic reserve: >100 dB (without prefiltering)
- Phase resolution: 0.01°
- Input noise: 6 nV/√Hz
- Time constants: 10 μs to 30 ks with 6, 12, 18, and 24 dB/oct rolloff
- Differential inputs with 10 MΩ impedance
- Configurable for current measurements with selectable gains
- Line filters (50/60 Hz and 100/120 Hz)
- Auto-functions for gain, phase, offset, and dynamic reserve optimization
- 16,000-point data buffers for signal recording
- GPIB and RS-232 interfaces
Applications
- Precision signal detection and measurement
- Research and scientific instrumentation
- Material characterization and analysis
- Phase-sensitive detection in spectroscopy
Specifications
| Frequency Range | 1 mHz to 102.4 kHz |
| Dynamic Reserve | >100 dB |
| Phase Resolution | 0.01° |
| Input Noise | 6 nV/√Hz |
| Time Constants | 10 μs to 30 ks |
| Input Impedance | 10 MΩ |
| Minimum Full-Scale Sensitivity | 2 nV |
| Temperature Stability | 5 ppm/°C |
| Filter Rolloff | 6, 12, 18, 24 dB/oct |
| Interfaces | GPIB, RS-232 |
| Data Buffer | 2 x 16,000 points |
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Stanford Research Systems SR830 DSP Lock-In Amplifier
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