Lock-In-Amplifier Module

Datasheet LIA-MV-150 Lock-In-Amplifier Module Features y y y y y Working Frequency 10 Hz ... 45 kHz Digital Phase Shifter 0 ... 360° Current and V...
Author: Homer Phillips
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Datasheet

LIA-MV-150 Lock-In-Amplifier Module

Features

y y y y y

Working Frequency 10 Hz ... 45 kHz Digital Phase Shifter 0 ... 360° Current and Voltage Input Parameter Control by local Switches and opto-isolated digital Inputs Compact and EMI-Shielded Case

Applications

y y y y y

Spectroscopy Luminescence, Fluorescence, Phosphorescence Measurements Light Scattering Measurements Opto-electronical Quality Control Integration in Industrial and Scientific Measurement-Systems

Block Diagram

Voltage-/Current Input Selector

Progr. Gain AC-Amplifier

Lowpass-Filter

Highpass-Filter

SIGNAL INPUT fgo= 150 kHz 12 dB/Oct.

Transimpedance Amplifier

fgu= 0.4 Hz 6 dB/Oct.

Gain= -1kV/A

Reference Comparator REFERENCE INPUT

Digital Phase-Shifter

PSD

Lowpass-Filter

Progr. Gain DC-Amplifier

X-OFFSET INPUT X-OUTPUT R * cos(ϕ)

Δϕ Δϕ = 0 ... 360°

t=3ms...10s 6/12 dB/Oct.

Optocoupler Isolate Unit CONTROL INPUTS

Manual Switches

Parameter Control Unit

Overload Detector Unlocked Detector

STATUSOUTPUT BS01-1051-16

SOPHISTICATED TOOLS FOR SIGNAL RECOVERY DE-LIA-MV-150/DS/R1/20AUG03/ Page 1 of 7

Datasheet

LIA-MV-150 Lock-In-Amplifier Module

Specifications Voltage Input

Test Conditions

Vs = ± 15 V, Ta = 25°C

Voltage Input Characteristic

Model “-S”: Single-Ended Instrumentation-Amplifier Model “-D”: True Differential Instrumentation-Amplifier 3 µV ... 100 mV in 1-3-10 steps (for Full Scale Output) AC, 0.015 Hz Model “-S”: 1 MΩ // 4 pF Model “-D”: 2 MΩ // 2 pF differential 12 nV/√Hz Model “-D”: 110 dB @ 1 kHz, 100 dB @ 10 kHz 100 ppm/K

Voltage Input Range Voltage Input Coupling Voltage Input Impedance Voltage Input Noise Voltage Input CMRR Voltage Input Gain Drift Current Input

Current Input Characteristic Current Input Range Current Input Noise Current Input Source- Capacit. Current Input Gain Error vs. Source Capacitance

Transimpedance-Amplifier, -1 kV/A (inverting) 3 nA ... 100 µA in 1-3-10 steps (for Full Scale Output) 13 pA/√Hz 10 pF – 1 nF (recommended) Cs f < 20 kHz ⎯⎯⎯⎯⎯⎯⎯⎯ 10 pF