Name：SRS SR865A

OVERVIEW The SR865A 4MHz is based on the SR830. It locks the specific frequency and phase in the circuit, filters out other noise, and measures the correct signal. The lock - in amplifier is an instrument used to measure weak signals and make them reappear. The SR865A 4MHz lock - in amplifier has some analog improvements and enhanced functions, and also adds many new functions that many instruments do not have. The touch - screen display can immediately display the measurement results and can also completely record the data. The SR865A 4MHz lock - in amplifier is easier to operate - all instrument functions have dedicated buttons and knobs, making the operation more convenient. The SR865A 4MHz lock - in amplifier can measure weak signals in harsh synchronous detection applications. ● The FPGA design provides a very wide frequency range (0.001Hz to 4MHz) ● High dynamic range (>120dB) ● Excellent stability (<5ppm/°C) ● High phase resolution (0.1μDeg.)