Stanford Research Systems SR860 Dual-Phase Lock-In Amplifier | 1 mHz to 500 kHz

The Stanford Research Systems SR860 lock-in amplifier operates over a frequency range of 1 mHz to 500 kHz and possesses a dynamic reserve of 120 dB. Stanford Research Systems SR860 lock-in amps offer both unrivaled analog performance and modern digital signal processing (DSP) capabilities. The SR860 integrates both current and voltage input amplifiers, provides a selectable sensitivity and input range and can perform either traditional or digital signal filtering. A sleek display, intuitive user interface and several different computer connectivity options complement the system's sophisticated synchronous detection methods.

Product Info

Frequency range	0.001Hz to 500 kHz
Dynamic reserve	120 dB (typ)
Voltage inputs	Single-ended or differential
Sensitivity (output scale)	1 nV to 1V (voltage input) 1 fA to 1µA (current input)
Voltage input range	10mV to 1V (peak)
Current input range	1µA or 10 nA (peak)
Max input	1V (peak) or 1µA (peak)
Input impedance	Voltage input: 10MΩ+25 pF, AC or DC coupled Current input: 1 kΩ or 100Ω to virtual ground
Gain accuracy	±1% (<200 kHz) Signal amplitude must be less than 30% of input range
Noise (rms):	2.5 nV/√Hz at 1 kHz (10 mV input range, typ.)
CMRR	90 dB to 1 kHz (DC coupled, 10 mV to 100 mV input range)
Dynamic reserve	120 dB (typ)
Timebase	10MHz In/Out (phase locks the internal frequency to other SR860s)
Input impedance	1MΩ or 50Ω
Phase setting resolution	360/2³² degrees
Phase noise	Int. ref: <0.0001° rms at 1 kHz (100ms, 12 dB/oct) Ext. ref (typ): <0.001° rms at 1 kHz (100ms, 12 dB/oct)
Phase drift (typ)	<0.002°/°C below 20 kHz (DC coupled) <0.02°/°C below 200 kHz <0.2°/°C below 2MHz
DC stability	Digital output values have no drift
Time constants	1µs to 30k s
Low pass filters	Typical RC-type filters or advanced Gaussian/Phase-Linear filters

1mHz to 500kHz frequency range
Low-noise current and voltage inputs
Touchscreen data display - large numeric results, chart recordings & FFT displays
10 MHz timebase input and output
Dual reference mode
GPIB, RS-232, Ethernet and USB
HDMI video output