Datasheet LIA-MV-150 Lock-In-Amplifier Module

Datasheet LIA-MV-150 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 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
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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
<1%
100 pF
<1%
1 nF
<2%
Signal Filter
Signal Filter Lowpass (-3 dB BW) 150 kHz; 12 dB/Oct.
Signal Filter Highpass (-3 dB BW) 0.4 Hz; 6 dB/Oct.
Signal Filter Cutoff accuracy
± 20 %
Demodulator
Demodulator Dynamic Reserve
35 dB @ Low Drift Setting
55 dB @ High Dynamic Setting
Reference Input
Reference Input Voltage Range
± 100 mV ... ± 5 V @ bip. Mode (0 V Comparator Threshold)
- 5 V / +10 V @ TTL Mode (2 V Comparator Threshold)
1 MΩ
max. 2 s @ Fast Setting
max. 4 s @ Slow Setting
Reference Input Impedance
Reference Acquisition Time
Phase Shifter
Phase Shifter Type
Phase Shifter Range
Phase Shifter Resolution
Phase Shifter Drift
Phase Shifter Accuracy
Digital, Working Frequency 10 Hz ... 45 kHz
0 ... + 360 °
1.4 °
< 100 ppm/K
< 0.3 °
Time Constants
Time Constant Range
Time Const. Filter Characteristic
3 ms ... 10 s in 1-3-10 steps
6 dB/Oct. or 12 dB/Oct. switchable
Output
Output Channels
Output Voltage Range
Output Current
Output Impedance
Output DC-Stability
X = In Phase
± 10 V (@ 2 kΩ Load)
± 5 mA max.
50 Ω
50 ppm/K @ Low Drift Setting
500 ppm/K @ High Dynamic Setting
2 %, Frequency > 30 kHz 5% @ sinusoidal input signal
± 100 % Full Scale by ± 10 V Control @ Low Drift Setting
± 100 % Full Scale by ± 1 V Control @ High Dyn. Setting
Output Basic Accuracy
Output Voltage Offset Range
Output Voltage Offset ControlVoltage Impedance
22 kΩ
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Datasheet
LIA-MV-150
Lock-In-Amplifier Module
Specifications (continued)
Status Indicator LED
Functions
Amplifier Overload Status
Reference PLL Unlocked Status
Digital Control
Control Input Voltage
Digital Status Output Current
Low: - 0.8 V ... + 0.8 V
High: + 1.8 V ... + 12 V, TTL / CMOS compatible
0 mA @ 0V, 1.5 mA @ + 5 V, 4.5 mA @ + 12V typ.
Active: + 4.5 V typ.
Non Active: 0 V typ.
10 mA max.
Power Supply
Supply Voltage
Supply Current
± 15 Vdc ... ± 20 Vdc
- 60 mA, + 100 mA
Case
Weight
Material
370 gr. (0.86 lbs)
AlMg4.5Mn, nickel-plated
Temperature Range
Storage Temperature
Operating Temperature
- 40 ... + 100 °C
0 ... + 60 °C
Signal Input AC Voltage
Signal Input DC Voltage
Reference Input Voltage
Control Input Voltage
Power Supply Voltage
20 Vpp
± 30 V
± 30 V
- 5 V, + 30 V
± 22 V
Control Input Current
Digital Status Output Voltage
Absolute Maximum Ratings
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Datasheet
LIA-MV-150
Lock-In-Amplifier Module
Switch Settings
3 Dip Switch - Presettings
Switch OFF
ON
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
S1
Reference-InputReference-InputThreshold = 0 V
Threshold = 2 V
S2
Fast PLL-Locking
Slow PLL-Locking
S3
Current Input
Voltage Input
Sensitivity Setting,
General
8 steps of input AC-gain are selectable. Output DC-gain
is selectable in 2 settings. The DC-gain settings are
marked as "Low Drift" and "High Dynamic" mode:
Mode
DC-Gain
Dyn. Reserve DC-Stability
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Low Drift
100
Low
High
High Dynamic 1000
High
Low
Select mode by sensitivity switch settings 0–7 or 8–F.
If only low dynamic reserve is required, select the high
DC-stability settings ("Low Drift" mode).
Sensitivity Setting
for Full Scale ( = 10 V Output)
Low Drift Mode
⏐ High Dynamic Mode
Setting Voltage Current ⏐ Setting Voltage Current
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0
100 mV 100 µA ⏐ 8
10 mV
10 µA
1
30 mV
30 µA ⏐ 9
3 mV
3 µA
2
10 mV
10 µA ⏐ A
1 mV
1 µA
3
3 mV
3 µA ⏐ B
300 µV 300 nA
4
1 mV
1 µA ⏐ C
100 µV 100 nA
5
300 µV 300 nA ⏐ D
30 µV
30 nA
6
100 µV 100 nA ⏐ E
10 µV
10 nA
7
30 µV
30 nA ⏐ F
3 µV
3 nA
Time Constant Setting
6 dB/Oct. 12 dB/Oct. Time Constant
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
0
8
3 ms
1
9
10 ms
2
A
30 ms
3
B
100 ms
4
C
300 ms
5
D
1s
6
E
3s
7
F
10 s
Phase Shift Setting
Phase shift is adjusted by 2 phase switches with
8 Bit resolution. Values 0 ... 255 ( Hex 00 ... FF )
correspond to phase shift setting 0 ... +360 °.
One step with switch marked “Coarse” changes phase shift
by 22.5 °. The “Fine”-switch changes phase shift
by 1.4 ° - steps:
Coarse
Fine
+11,3°
+8,4° 7 8 9 +14,1°
+225°
A
6
A
5
5
B
B
C +270° +5,6° 4
C +16°
+90° 4
D
D
3
3
E
E
2
2
1 0 F +19,7°
+2,8°
+45° 1 0 F +315°
0°
0°
+135°
6
+180°
7 8 9
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Page 4
Datasheet
LIA-MV-150
Lock-In-Amplifier Module
Connectors
Signal Input
Model “-S”: BNC
Model “-D”: LEMO Series 1S, 4-pin fixed Socket
Voltage Input: Pin 1: Non Inverting Input
Pin 2: Inverting Input
Pin 3: GND
Pin 4: N.C.
Current Input: Pin 1: Current Amplifier Input
Pin 2: If Current Input is used,
connect to Pin 3 (GND)
Pin 3: GND
Pin 4: N.C.
PIN 2
PIN 1
PIN 3
PIN 4
Reference Input
BNC
Output
BNC
Power Supply
LEMO Series 1S, 3-pin fixed Socket
Pin 1: + 15V
Pin 2: - 15V
Pin 3: GND
PIN 2
-Vs
PIN 1
+Vs
PIN 3
GND
Control Port
Sub-D 25-pin, female, Qual. Class 2
Pin 1:
+12V (Stabilized Power Supply Output)
Pin 2:
-12V (Stabilized Power Supply Output)
Pin 3:
AGND (Analog Ground)
Pin 4:
+5V (Stabilized Power Supply Output)
Pin 5:
X-Output
Pin 6:
Overload Status Output
Pin 7:
Unlocked Status Output
Pin 8:
X-Output Offset Control Input
Pin 9:
DGND (Ground f. Digital Control Pin 10 - 25)
Pin 10:
Dynamic Mode (DYN0)
Pin 11:
Sensitivity (SEN0)
Pin 12:
Sensitivity (SEN1)
Pin 13:
Sensitivity (SEN2)
Pin 14:
Time Constant Slope (TCSL)
Pin 15:
Time Constant (TC0)
Pin 16:
Time Constant (TC1)
Pin 17:
Time Constant (TC2)
Pin 18:
Phase Shift (PH0)
Pin 19:
Phase Shift (PH1)
Pin 20:
Phase Shift (PH2)
Pin 21:
Phase Shift (PH3)
Pin 22:
Phase Shift (PH4)
Pin 23:
Phase Shift (PH5)
Pin 24:
Phase Shift (PH6)
Pin 25:
Phase Shift (PH7)
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Datasheet
LIA-MV-150
Lock-In-Amplifier Module
Remote Control Operation
General
Remote control input bits are opto-isolated and connected
by logical OR to local switch setting. The 4 hexadecimal
switches are 4 bit-coded as shown in the following table:
MSB
LSB
Switch Code Bit 3 Bit 2 Bit 1 Bit 0
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0
Low
Low
Low
Low
1
Low
Low
Low
High
2
Low
Low
High Low
3
Low
Low
High High
4
Low
High Low
Low
5
Low
High Low
High
6
Low
High High Low
7
Low
High High High
8
High Low
Low
Low
9
High Low
Low
High
A
High Low
High Low
B
High Low
High High
C
High High Low
Low
D
High High Low
High
E
High High High Low
F
High High High High
For remote control a Lock-In-Amplifier switch setting,
set the local switch to “0” and select the wanted setting via
a 4-bit-code at the corresponding digital inputs:
Sensitivity Switch Corresponding Inputs
Bit
Corresponding Control Port Input
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Bit 0
SEN0 (Pin 11)
Bit 1
SEN1 (Pin 12)
Bit 2
SEN2 (Pin 13)
Bit 3
DYN0 (Pin 10)
Time Constant Switch Corresponding Inputs
Bit
Corresponding Control Port Input
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Bit 0
TC0
(Pin 15)
Bit 1
TC1
(Pin 16)
Bit 2
TC2
(Pin 17)
Bit 3
TCSL (Pin 14)
Phase Switch Coarse Corresponding Inputs
Bit
Corresponding Control Port Input
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Bit 0
PH4
(Pin 22)
Bit 1
PH5
(Pin 23)
Bit 2
PH6
(Pin 24)
Bit 3
PH7
(Pin 25)
Phase Switch Fine Corresponding Inputs
Bit
Corresponding Control Port Input
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Bit 0
PH0
(Pin 18)
Bit 1
PH1
(Pin 19)
Bit 2
PH2
(Pin 20)
Bit 3
PH3
(Pin 21)
For example to select a switch setting code “6”, you have
to connect a “High”- level signal to the corresponding
control input pins Bit 1 & Bit 2. Mixed operation, e.g.local
phase setting and remote controlled sensitivity setting, is
also possible.
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Page 6
Datasheet
LIA-MV-150
Lock-In-Amplifier Module
Dimensions
157 mm
150 mm
0
0
REFINPUT
OUTPUT
51 mm
0
38 mm
0
44 mm
INPUT
POWER
14 mm
15 mm
15 mm
137 mm
∅ 3.3 mm
41 mm
50 mm
57 mm
74 mm
90 mm
27 mm
14 mm
19 mm
120 mm
DZ01-1051-13a
Ordering Information
Available Models
Model No.: LIA-MV-150-S
- Singe-Ended Input (BNC-Connector Input)
Model No.: LIA-MV-150-D
- True Differential Input (LEMO-Connector Input)
FEMTO Messtechnik GmbH
Klosterstr. 64
D-10179 Berlin x Germany
Tel.: +49-(0)30-280 4711-0
Fax: +49-(0)30-280 4711-11
e-mail: info@femto.de
http://www.femto.de
Specifications are subject to change without notice. Information furnished herin is believed to
be accurate and reliable. However, no responsibility is assumed by FEMTO Messtechnik
GmbH for its use, nor for any infringement of patents or other rights granted by implication
or otherwise under any patent rights of FEMTO Messtechnik GmbH. Product names
mentioned may also be trademarks used here for identification purposes only.
© by FEMTO Messtechnik GmbH
Printed in Germany
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