LHI778 Datasheet, PDF (1/1 Pages) PerkinElmer Optoelectronics – Dual Element Detector

Lighting | Imaging | Telecom
Pyroelectric Infrared Detectors
Dual Element Detector
LHi 778
TO-5 housing
Competitive cost version
Designed for motion control
The LHi 778 pyroelectric infrared-detector series are the standard dual element
design recommended for all variants of motion control. They include a dual
element pyro-electric ceramic element with Fet in source follower connection.
LHi 778 detector is available in TO-5 housing with standard infrared filter. It
provides high responsivity with excellent common mode performance (match)
and low noise at steady state and temperature changes.
Parameters
LHi 778
Element size
Responsivity
Match
Noise
Offset Voltage
NEP
D*
Output Impedance
Operating Voltage
min typical
2x1
3 300 4000
1
20
0,2
5x10 ⁷
7,5x10^-10
19x10 ⁷
5
2
max
units
mm²
condition
2 elements
V/W
100°C, 1 Hz
10
%
50
µVpp 25°C, 0,3...10Hz
1,55
28x10^-10
V
W ÖHz
R_S =47kW, 25°C
1Hz Bw, 100°C, 1 Hz
cm ÖHz/W 1Hz Bw, 100°C, 1 Hz
10
kW
47kW Load Res.
15
V
R_S =47kW, 25°C
Operating
Temperature
-40
Storage Temperature -40
85
°C
non permanent
85
°C
non permanent
100
Sensing elements
10
1
0,1
0,01
0,1
1
10
Frequency Response
f [Hz]
Dimensions in mm
(optically)
Europe:
PerkinElmer Optoelectronics GmbH
Wenzel Jaksch Str 31
Wiesbaden / Germany
Phone [phone]
Fax [phone]
USA:
PerkinElmer Optoelectronics
2175 Mission Colledge Blvd
Santa Clara, CA 95054
Phone [phone]
Fax [phone]
Asia:
PerkinElmer Optoelectronics
47, Ayer Rajah Crescent #06-12
Singapore 139947
Phone [phone]
Fax [phone]
www.perkinelmer.com/opto
Bottom view