2.6
AMPLIFICATION REQUIREMENTS
These telescopes require customer developed signal processing. The schematic below depicts a sample amplification
circuit with a single supply, 0.1 Hz to 10 Hz frequency response and a gain of 500, which can be tailored as needed for
the individual application.
2.7
MECHANICAL OUTLINE
Optics and detector are sealed into a rugged watertight hermetically sealed PVC housing providing exceptional thermal
isolation and immunity to thermal shock. RFI protection is provided for use near strong RF sources such as radar and
communications transmitters.
Page 8
Figure 2.1
Dimensions
13.0 in.
3.5 in. Dia.
INPUT
V+
GND
INPUT
A
D
B
C
100
µ
F
C4
R9
100K
R1
2
1
4
3
R6
8
C5
6.81M
U1B
2.2nF
5
4
7
6
U1A
LMC6062
(or equivalent)
8
1.54K
R8
3.3
µ
F
C6
1.54K
R4
3.3
µ
F
C3
V+ 5 TO 15V
GND
ANALOG
OUTPUT
100K
100
µ
F
C1
ANALOG
OUTPUT
13K
R5
13K
R10
6.81M
R7
6.81M
R2
C2
2.2nF
.1Hz TO 10Hz SINGLE SUPPLY AMP WITH GAIN OF 500
NOTES:
ALL CAPACITORS ARE 10%, 10V, ALUM., EXCEPT FOR C2 AND C5.
CAPACITORS C1 AND C4 MUST HAVE A LEAKAGE < 1
µ
A.
ALL RESISTORS ARE 1%, 1/4W, MFLM.
AMPLIFIER MAY HAVE TURN ON TIME OF SEVERAL MINUTES.
OFFSET WILL BE ONE HALF OF V+ (ADJUST RATIO OF R1 AND R9 TO CHANGE).
NOTICE:
THE INFORMATION PROVIDED HEREIN IS BELIEVED TO BE RELIABLE. HOWEVER, ELTEC INSTRUMENTS, INC. ASSUMES NO
RESPONSIBILITY FOR INACCURACIES OR OMISSIONS. BY PROVIDING TECHNICAL INFORMATION, ELTEC DOES NOT INTEND
TO OFFER OR PROVIDE ENGINEERING SERVICES OR ADVICE CONCERNING THE CUSTOMER’S DESIGN AND ELTEC ASSUMES
NO LIABILITY FOR APPLICATIONS ASSISTANCE. THE CUSTOMER IS FULLY RESPONSIBLE FOR ALL DESIGN DECISIONS AND
ENGINEERING WITH REGARD TO ITS PRODUCTS, INCLUDING DECISIONS RELATING TO THE APPLICATION OF ELTEC
PRODUCTS.
6.81M
R3
