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SE1201 DSP Lock-In Amplifier

Overview Specifications Ordering Resources

♦ Wideband Lock-in Amplifier for Weak Signals 

SE1201 Small-sized Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 50 mHz to 120 kHz. With the high-speed 4-core architecture, high-precision ADC and excellent analog performance, SE1201 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noise.

♦ Top Accuracy & Bandwidth for Science & Industry

The performance of SE1201 is as good as other lock-in amplifiers brands, even better in some certain parameters, such as measurement accuracy, operating bandwidth, which meets the needs of scientific research and industrial application well.

♦ Pricing:

SE1201 Unit Price:US$4,638.00

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Need technical support or a custom solution? Contact our application engineers: saluki@salukitec.com.

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Key Features

50 mHz to 120 kHz frequency range

Low-noise current and voltage inputs

1 nV to 1 V full-scale sensitivity

Time constants from 10 µs to 3 ks

Up to 100 dB dynamic reserve

Noise as low as 9 nV/√Hz @997 Hz

Up to 100 dB CMRR

Dual-phase structure guarantees higher accuracy

3.5 inch color TFT-LCD screen, Small size (259*320*102 mm)

Support remote control, embedded a free LabVIEW program

1. Signal Channel
Voltage Input Mode

Single-ended or Differential
Full-scale Sensitivity

1 nV to 1 V in a 1-2-5 sequence

 
Current Input

106 or 108 V/A
Impedance

•  Voltage: 10 MΩ // 25 pF, AC or DC coupled

•  Current: 1 kΩ to virtual ground
C.M.R.R

>100 dB up to 10 kHz, decreases at 6 dB/octave
Dynamic Reserve

> 100 dB
Gain Accuracy

0.2% typ, 1% max
Voltage Noise

9 nV/√Hz at 997 Hz
Current Noise

•  0.15 pA/√Hz at 97 Hz

•  0.13 pA/√Hz at 997 Hz
Line Filters

50/60 Hz and 100/120 Hz
Gounding

The BNC (A/I, B) shield can be directly grounded or connected to a floating ground via a 1 kΩ resistor.
2. Reference Channel
Input

•  Frequency range:  50 mHz to 120 kHz

•  Reference input: Square or Sine

•  Input impedance: 1 MΩ//25 pF
Phase

•  Resolution: 1 µdeg

•  Absolute phase error: < 1 deg

•  Relative phase error: < 1 mdeg

•  Phase noise: (Internal ref.) Synthesized, <0.0001°rms at 1 kHz;  (External ref.) 0.005°rms at 1 kHz (100 ms time constant, 12 dB/oct)

•  Drift: <0.01°/℃ below 10 kHz, <0.5°/℃ above 10 kHz
Harmonic Detection

2F, 3F, …nF to 120 kHz  (n<32767)
Acquisition Time

•  Internal ref.: instantaneous acquisition

•  External ref.: (4 cycles + 5 ms) or 100 ms
3. Demodulator
Stability

•  Digital output: no zero drift on all setting

•  Display: no zero drift on all setting

•  Analog output: <5 ppm/℃ for all dynamic reserve settings
Harmonic Rejection

-90 dB
Time Constant

•  10 µs to 3 ks (<200 Hz)

•  10 µs to 30 s (>200 Hz)

(6, 12, 18, 24 dB/oct rolloff)
Synchronous Filters

Available below 20 Hz
4. Internal Oscillator
Frequency

•  Range: 50 mHz to 120 kHz

•  Accuracy: 2 ppm + 30 µHz

•  Resolution: 1 mHz
Distortion

•  -80 dBc (f < 10 kHz)

•  -70 dBc (f > 10 kHz)
Amplitude

0.10 to 1 Vrms
Accuracy

1%
Stability

100 ppm/℃
Output

Sine wave signal, output impedance 50 Ω.
5. Interface

RS-232 and RS-232 to USB interface
6. Outputs
CH1 and CH2 Outputs

•  Function: output X, Y, R, θ

•  Output voltage: ±5 V full scale, 30 mA max output current
7. Display
Screen

3.5 inch, 320×240 TFT
Display Types

Numerical form
8. General
Power Requirement

•  Voltage: 110 – 220 VAC

•  Frequency: 50/60 Hz

•  Power: 20 W
Dimension

•  259 (W) × 115 (H) × 320 (D) mm  (with feet)

•  259 (W) × 102 (H) × 320 (D) mm  (without feet)
Weight

3.2 kg

Main Machine

Module No. Item Description
SE1201 Digital Lock-in Amplifier 50 mHz to 120 kHz, 1 nV to 1 V full-scale sensitivity
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