Datasheet LIA-MVD-200-L Dual Phase Lock-In-Amplifier

Datasheet LIA-MVD-200-L

Dual Phase Lock-In-Amplifier Module

Features

Applications

Block Diagram y BNC Connectors for Input and Output Signals y Rugged Aluminium Housing y Dual Phase Detection with X, Y and Magnitude Output y Working Frequency 5 Hz ... 10 kHz, Digital Phase Shifter 0 ... 360° y Parameter Control by local Switches and opto-isolated digital Inputs y Optional Reference Oscillator Module available y Spectroscopy y Luminescence, Fluorescence, Phosphorescence Measurements y Light Scattering Measurements y Opto-electronical Quality Control

Progr. Gain

AC-Amplifier

Lowpass-Filter Highpass-Filter

VOLTAGE

INPUT

VOLTAGE

OUTPUT

CURRENT

INPUT

Transimpedance

Amplifier

Gain=

-100kV/A

MONITOR-

OUTPUT

PSD

REFERENCE

INPUT

Reference

Comparator

Digital

Phase-Shifter

0°

Δϕ

90°

Δϕ =

0 ... 360°

PSD

Optocoupler

Isolate Unit

CONTROL

INPUTS

Manual

Switches

Parameter

Control Unit

Overload

Detector

Unlocked

Detector

1MHz / 6dB 1kHz / 6dB

Lowpass-Filter

Progr. Gain

DC-Amplifier

X-OFFSET

INPUT

X-OUTPUT t=3ms...10s

6/12 dB/Oct.

Vector Summing

Amplifier

Y

R

R-OUTPUT

Magnitude

X

Lowpass-Filter

Progr. Gain

DC-Amplifier t=3ms...10s

6/12 dB/Oct.

Y-OUTPUT

Y-OFFSET

INPUT

STATUS-

OUTPUT

BS01-1033-12

S O P H I S T I C A T E D T O O L S F O R S I G N A L R E C O V E R Y

LIA-MVD-200-L/DS/R2/20AUG03/ Page 1 of 10



Specifications

Voltage Input

Current Input

Signal Filter

(without optional

Bandpass-Module)

Signal Monitor Output

Demodulator

Reference Input

Phase Shifter

Time Constants

Test Conditions

Voltage Input Characteristic

Voltage Input Range

Voltage Input Coupling

Voltage Input Impedance

Voltage Input Noise

Voltage Input CMRR

Voltage Input Gain Drift

Vs =

±

15 V, Ta = 25°C

True Differential Instrumentation-Amplifier

3 µV ... 1V in 1-3-10 steps (for Full Scale Output)

AC

1 M

Ω // 4 pF

12 nV/

√Hz

110 dB @ 1 kHz, 100 dB @ 10 kHz

100 ppm/K

Current Input Characteristic

Current Input Range

Current Input Noise

Transimpedance-Amplifier, -100 kV/A (inverting)

30 pA ... 10 µA in 1-3-10 steps (for Full Scale Output)

0.4 pA/

√Hz

Current Input Source- Capacit. 10 pF – 500 pF (recommended)

Current Input Gain Error vs.

Source Capacitance Cs f < 10 kHz

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10 pF < 1 %

100 pF < 1 %

1 nF < 2 %

Signal Filter Lowpass (-3 dB BW) 1 MHz *, 100 kHz, 10 kHz, 1 kHz, 100 Hz; 6 dB/Oct.

Selectable per jumper

Signal Filter Highpass (-3 dB BW) 0.2 Hz, 1 Hz, 10 Hz, 100 Hz, 1 kHz; 6 dB/Oct.

Signal Filter Cutoff accuracy selectable per jumper

± 20 %

Max. Dynamic Reserve 80 dB

Signal Monitor Output Gain 1 ... 3333 (depends on Gain-Setting)

Signal Monitor Output Voltage

± 8 V max.

Signal Monitor Output Impedance 100

Ω

Signal Monitor Output Current

± 10 mA max.

Note When using Current Input with low Input Ranges, the

Monitor Output may be disabled by opening the soldering jumper at the Board (near JP1) to prevent from recoupling.

Demodulator Dynamic Reserve 15 dB @ Ultra Stable Setting

35 dB @ Low Drift Setting

55 dB @ High Dynamic Setting

Reference Input Voltage Range

± 100 mV ... ± 5 V @ bip. Mode (0 V Comparator Threshold)

Reference Input Impedance

- 5 V / +10 V @ TTL Mode (+2 V Comparator Threshold)

1 M

Ω

Reference Acquisition Time max. 2 s @ Fast Setting max. 4 s @ Slow Setting

Phase Shifter Type

Phase Shifter Range

Phase Shifter Resolution

Phase Shifter Drift

Phase Shifter Accuracy

Phase Shifter Orthogonality

Digital, Working Frequency 5 Hz ... 10 kHz

0 ... + 360 °

1.4 °

< 100 ppm/K

< 0.3 °

< 0.1 °

Time Constant Range 3 ms ... 10 s in 1-3-10 steps

Time Const. Filter Characteristic 6 dB/Oct. or 12 dB/Oct. Switchable


Page 2


Specifications (continued)

Output

Status Indicator LED

Digital Control

Power Supply


Output Channels

Output Voltage Range

Output Current

Output Impedance

Output DC-Stability

Output Basic Accuracy

Output Voltage Offset Range

Output Voltage Offset Control-

Output Load Impedance

Functions

X = In Phase, Y = Quadrature, R = Magnitude

± 10 V (@ 2 kΩ Load)

± 5 mA max.

50

Ω

5 ppm/K @ Ultra Stable Setting

50 ppm/K @ Low Drift Setting

500 ppm/K @ High Dynamic Setting

2 % (X and Y-Output) @sinusoidal input signal

4 % (R-Output) @sinusoidal input signal

± 100 % Full Scale by ± 10 V Control Voltage

> 2 k

Ω

Amplifier Overload Status

Reference PLL Unlocked Status

Control Input Voltage

Control Input Current

Digital Status Output Voltage

Digital Status Output Current

Supply Voltage

Supply Current

Low: - 0.8 V ... + 0.8 V, High: + 1.8 V ... + 12 V

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.

± 15 Vdc ... ± 18 Vdc

- 60 mA, + 100 mA

Temperature Range

Absolute Maximum Ratings

Switch Settings

Dimension

Weight

Storage Temperature

Operating Temperature

Signal Input AC Voltage

Reference Input Voltage

Control Input Voltage

Power Supply Voltage

4 Dip Switch - Presettings

Sensitivity Setting,

Output DC-Gain Modes

64,4 x 105,0 x 223,0 mm (without BNC-connectors)

1000 gr. (2.2 lbs)

- 40 ... + 100 °C

0 ... + 60 °C

50 Vpp

± 15 V

- 5 V, + 30 V

± 22 V

Switch OFF ON

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S1 Low Drift & High Dynamic Ultra Stable & Low Drift

S2 1-f Mode 2-f Mode

S3 Fast PLL-Locking Slow PLL-Locking

Threshold = 0 V Threshold = +2 V

3 Output DC-Gain Modes are selectable:

Mode DC-Gain Dyn. Reserve DC-Stability

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Stable High

If only low dynamic reserve is required, select the higher

DC-Stability settings. Use Dip switch S1 to preselect either the two upper or the two lower DC-Gain modes, then select best mode by Sensitivity switch settings 0–7 or 8–F.


LIA-MVD-200-L/DS/R2/20AUG03/ Page 3 of 10



Switch Settings (continued)

S1 = ON: Sensitivity Setting Ultra Stable Mode

⏐ Low Drift Mode for Full Scale ( = 10 V Output) Setting Voltage Current

⏐ Setting Voltage Current

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0

1

2

3

4

5

6

7

1 V 10 µA

⏐ 8

300 mV 3 µA

⏐ 9

100 mV 1 µA

⏐ A

30 mV 300 nA

⏐ B

10 mV 100 nA

⏐ C

3 mV 30 nA

⏐ D

1 mV 10 nA

⏐ E

300 µV 3 nA

⏐ F

100 mV

3 mV

1 mV

300 µV

100 µV

1 µA

30 mV 300 nA

10 mV 100 nA

30 nA

10 nA

3 nA

1 nA

30 µV 300 pA

S1 = OFF: Sensitivity Setting Low Drift Mode

⏐ High Dynamic Mode for Full Scale ( = 10 V Output) Setting Voltage Current

⏐ Setting Voltage Current

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0 100 mV 1 µA

⏐ 8

10 mV 100 nA

1

2

3

4

5

6

7

30 mV 300 nA

⏐ 9

10 mV 100 nA

⏐ A

3 mV 30 nA

⏐ B

1 mV 10 nA

⏐ C

300 µV 3 nA

⏐ D

100 µV 1 nA

⏐ E

30 µV 300 pA

⏐ F

3 mV

1 mV

300 µV

100 µV

30 µV 300 pA

10 µV 100 pA

3 µV

30 nA

10 nA

3 nA

1 nA

30 pA

Time Constant Setting 6 dB/Oct. 12 dB/Oct. Time Constant

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

7 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

+135°

6

+90° 4

5

3

+45°

2

+180°

7

1

8 9

0

0°

+225°

A

B

C +270°

F

E

D

+315°

Fine

+8,4°

6

5

+5,6° 4

+2,8°

3

2

7

1

+11,3°

8 9

0

0°

F

+14,1°

A

B

C +16°

E

D

+19,7°

If 2-f Mode is selected, the resolution of digital phase control changes to 2.8 ° and the phase shift range doubles to 0 ... + 720 °.


Page 4


Internal Jumper Settings

(jumpers are accessible when top of case is removed)


Input Signal Filter

Setting

Frequency Range

Selection

Set Cut-Off Frequency of Input Lowpass Filter with JP1 + JP2 (always same position) and

Highpass Filter with JP3:

JP3

⏐

-3 dB Cut-Off

⏐ JP1, JP2 -3 dB Cut-Off

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3 – 4

1 – 3

2 – 4

3 – 5

4 – 6

0.2 Hz

⏐ 1 – 2

1 Hz

⏐ 3 – 4

10 Hz

⏐ 5 – 6

100 Hz

⏐ 7 – 8

1 kHz

⏐ none

100 Hz

1 kHz

10 kHz

100 kHz

JP4 Frequency Range

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1 – 2 normal operation

3, 4, 5, 6, 7, 8 test pins, do not use

Internal Jumper Position

Diagram

(look at top of board when case is opened)

Control Interface

Extension Connector

1

7 5 3 1

JP2

8 6 4 2

7 5 3 1

JP1

8 6 4 2

9 7 5 3 1

Monitor Output

10 8 6 4 2

JP3

Filter Extension

Connector

X Freq. Comp.

X Offset Adjust

Y Freq. Comp.

X Gain Adjust

1

Reference Oscillator

Extension Connector

Amplitude Adjust

Frequency Adjust

JP6

Optional Reference

Oscillator Module

2

4

6

8

Trimmer for Service purposes only !

Y Offset Adjust

Y Gain Adjust

JP4

2 4 6 8

1 3 5 7

Lock-In-Amplifier Board


Page 5



Internal Connector

(of build-in Lock-In Board)

Connector Type

Input

Euro-Card DIN 41612 Connector, 64 pin male, (a+c)

Pin C2:

Pin C3:

Pin C4:

Pin C5:

Voltage Input, Non Inverting, DC-Coupled

Voltage Input, Non Inverting, AC-Coupled

Voltage Input, Inverting, AC-Coupled

Voltage Input, Inverting, DC-Coupled

Monitor Output

Output

Offset Input

Status Output

Power Supply

Remote Control Inputs

(Opto-Isolated)

Pin C6:

Pin A2- A6:

Pin C9:

Pin A9:

Pin A12:

Pin C14:

Pin A14:

Pin C15:

Current Amplifier Voltage Output

Input GND

Monitor Output

Monitor GND

R-Signal Output

X-Signal Output

Y-Signal Output

Output GND

Reference Input Pin A32:

Pin A31:

Reference Output

(Connected only if optional

Pin A30:

Pin A17:

Oscillator Module is installed) Pin A29:

Standard Control Interface

(Connected only if optional

Control Interface Module

(future product) is installed)

Pin C29:

Pin C30:

Pin C31:

Pin C32:

Pin A10:

Pin A11:

Pin A13:

X-Offset Input

Y-Offset Input

Offset GND

Pin C10:

Pin C11:

Pin C17:

Unlocked Status Output

Overload Status Output

Status Output GND (=Power Supply GND)

Pin A16+C16: Power Supply – 15V

Pin A18+C18: Power Supply + 15V

Pin A17+C17: Power Supply GND

Pin C19:

Pin A19:

Pin C20:

Pin A20:

Pin A22:

Pin C21:

Pin A21:

Pin C22:

Pin A28:

Pin C28:

Time Constant (TC0)

Time Constant (TC1)

Time Constant (TC2)

Time Constant Slope (TCSL)

Sensitivity (SEN0)

Sensitivity (SEN1)

Sensitivity (SEN2)

Dynamic Mode (DYN0)

Phase Shift (PH0)

Phase Shift (PH1)

Pin A27:

Pin C27:

Pin A26:

Pin C26:

Phase Shift (PH2)

Phase Shift (PH3)

Phase Shift (PH4)

Phase Shift (PH5)

Pin A25:

Pin C25:

Phase Shift (PH6)

Phase Shift (PH7)

Pin C24: Disable Local Switch Control

Pin A23+A24: Remote Control GND

(Common Optocoupler Cathode)

Reference Input

Reference Input Ground

Reference Output

Refer. Output GND (=Power Supply GND)

Reference Synchronization Input

Interface 0

Interface 1

Interface 2

Interface 3


Page 6


External Connectors

(at backside, Standard

Configuration)


Signal Input Factory set to BNC, isolated (single ended)

X-Output BNC

Y-Output BNC

R-Output BNC

Reference Input BNC

Power Supply LEMO Series 1S, 3-pin fixed Socket

Pin 1: + 15V

Pin 2: - 15V

Pin 3: GND

PIN 2

-15V

PIN 1

+15V

Connector Wiring Options

Control Port

General

PIN 3

GND

Sub-D 25-pin, female, Qual. Class 2

Pin 1:

Pin 2:

Pin 3:

Pin 4:

+12V (Stabilized Power Supply Output)

-12V (Stabilized Power Supply Output)

AGND (Analog Ground)

+5V (Stabilized Power Supply Output)

Pin 6:

Pin 7:

Pin 8:

Pin 9:

Pin 10:

Pin 11:

Pin 12:

Pin 13:

Pin 14:

Pin 15:

Pin 16:

Pin 17:

Pin 18:

Pin 19:

Pin 20:

Pin 21:

Pin 22:

Pin 23:

Pin 24:

Pin 25:

Overload Status Output

Unlocked Status Output

Disable Local Switch Control Input

DGND (Ground f. Digital Control Pin 8 - 25)

Dynamic Mode (DYN0)

Sensitivity (SEN0)

Sensitivity (SEN1)

Sensitivity (SEN2)

Time Constant Slope (TCSL)

Time Constant (TC0)

Time Constant (TC1)

Time Constant (TC2)

Phase Shift (PH0)

Phase Shift (PH1)

Phase Shift (PH2)

Phase Shift (PH3)

Phase Shift (PH4)

Phase Shift (PH5)

Phase Shift (PH6)

Phase Shift (PH7)

The BNC-connector configuration can be easily changed by setting electrical jumpers at the internal I/O-adapter card.

Disconnect the power supply and open the case by loosening the two upper screws at the case front and rear side. Please pay attention to the ground connection at the backplane. Now open the case by lifting the top.

The jumper options and functions are described in the


Page 7



Connector Wiring Options,

Jumpers on internal

Adapter Board

Input Connectors (JP1)

Output Connectors (JP2)

Reference Connector (JP3)

(Reference Output only if optional Oscillator Module is installed)

Input wiring Jumper installed

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IN A = Voltage Input "+V-IN

→ IN A"

→ IN A/SHLD"

"-V-IN

IN A = Voltage Input "+V-IN

→ IN A"

IN A / IN B = Voltage Input "+V-IN

→ IN A"

(2 BNC Differential, AC) "GND

→ IN A/SHLD"

(OUT A cannot be used) "-V-IN

→ IN B"

IN A = Current Input "C-IN

→ IN A"

→ IN A/SHLD"

"-V-IN

Output wiring Jumper installed

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

OUT A = X-Output "X

→ OUT A"

(JP1) "USE OUT A/NO IN B"

OUT B = X-Output

OUT A = Y-Output

OUT B = Y-Output

OUT C = Y-Output

"X

→ OUT B"

"Y

→ OUT A"


"Y

→ OUT B"

"Y

→ OUT C"

OUT A = R-Output "R

→ OUT A"


OUT B = R-Output

OUT C = R-Output

"R

→ OUT B"

"R

→ OUT C"

OUT B = Monitor Output "MON

→ OUT B"

OUT C = Monitor Output "MON

→ OUT C"

OUT B = Unlocked Output "UNL

→ OUT B"

OUT C = Unlocked Output "UNL

→ OUT C"

OUT B = Overload Output "OVL

→ OUT B"

OUT C = Overload Output "OVL

→ OUT C"

OUT C = Reference Output "REF-OUT

→ OUT C"

Reference wiring Jumper installed

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

REF = Reference Input "REF-IN

→ REF" (2 Jumper)

REF = Reference Output "REF-OUT

→ REF-IN" (2 Jp.)

(Reference Output "REF-IN

→ REF" (2 Jumper) connected to Ref. Input)

REF = Refer. Sync. Input "REF-SYNC

→ REF" (2 Jp.)

(use OUT C as


Page 8


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:

Switch Code Bit 3 Bit 2 Bit 1 Bit 0

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

0

1

2

Low Low Low Low

Low Low Low High

Low Low High Low

3 Low Low High High

Sensitivity Switch -

Corresponding Inputs

Time Constant Switch -


Phase Switch Coarse -


Phase Switch Fine -


Remote Control Example

C

D

E

F

High High Low Low

High High Low High

High High High Low

High High High High

For remote control a switch setting, set the local switch to “0” and select the wanted setting via the 4-Bit-code at the corresponding digital inputs.

Bit Corresponding Control Port Input

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Bit 0 SEN0 (Pin A22)

Bit 1 SEN1 (Pin C21)

Bit 2 SEN2 (Pin A21)

Bit 3 DYN0 (Pin C22)


⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Bit 0 TC0 (Pin C19)

Bit 1 TC1 (Pin A19)

Bit 2 TC2 (Pin C20)

Bit 3 TCSL (Pin A20)


⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Bit 0 PH4 (Pin A26)

Bit 1 PH5 (Pin C26)

Bit 2 PH6 (Pin A25)

Bit 3 PH7 (Pin C25)


⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Bit 0 PH0 (Pin A28)

Bit 1 PH1 (Pin C28)

Bit 2 PH2 (Pin A27)

Bit 3 PH3 (Pin C27)

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 settings and remote controlled sensitivity setting, is


Page 9


Dimensions


Top View

Front View

Time-

Constant

Sensitivity

Phase

Coarse

Phase

Fine

Dynamic

Reserve

Mode

H

L

1f F 0V

Reference

Threshold

PLL

Power

Unlocked

Overload

LOCK-IN-AMPLIFIER

LIA-MVD-200-L

Dual Phase, 5 Hz - 10 kHz

1 05 ,0 m m

Optional Extensions

Back View

REFERENCE

INPUT

R - OUTPUT

(MAGNITUDE)

Y - OUTPUT

(QUADRAT.)

X - OUTPUT

(IN-PHASE)

SIGNAL

INPUT

CONTROL POWER

PIN 2

-15V

PIN 1

+15V

PIN 3

GND

Case Material:

Al, natural anodised

Reference Oscillator Module Model No.: SOM-1

- Frequency Range 5 Hz ... 130 kHz, User adjustable

- Output Voltage 0 ... 2 Vrms, User adjustable

- 100 ppm/K Amplitude Accuracy

Factory Set 1 kHz, 1 Vrms

DZ01-1073-10

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: [email protected] 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


Page 10

Datasheet LIA-MVD-200-L Dual Phase Lock-In-Amplifier

±

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