iC-NE
LIGHT-GRID PULSE RECEIVER
Rev E1, Page 1/9
FEATURES
o
Photoelectric amplifier adapted to standard photodiodes
o
Built-in bandpass filter with 300 kHz center frequency
o
Differential current-signal output with open drain low-side
drivers
o
Nonlinear transfer function results in wide dynamic range of
100 nA to 1.5 mA for pulsed photocurrents
o
Fast flash recovery time of max. 30 µs
o
Recovery time below 10 µs for excessive photocurrents of up
to 1.8 mA
o
3-step shift register and control logic
o
Compatible to CMOS levels
o
Single 5 V supply
o
Low standby current; circuit activation by input data
o
Power-down reset
o
Suited for high-risk applications according to IEC 61496-1
o
ESD protection
o
Option:
extended temperature range of -20 to 85 °C
APPLICATIONS
o
Light curtains
o
Light barriers
o
Electro-sensitive protective
equipment (ESPE)
PACKAGES
SO8
MSOP8
BLOCK DIAGRAM
+5V
2
VDD
BP−AMPLIFIER
PHOTO
DIODE
OUTPUT
SN
SP
5
4
iC−NE
EN
8
PD
EN
INH
LOGIC
INPUTS
CONTROL LOGIC
1
BIAS
BIAS
1
DIN
FF1
FF2
Q1
D
C
R
Q
Q2
FF3
D
C
R
Q
Q3
LOGIC OUTPUT
DOUT
6
6µA
3
CLK
6µA
D
C
R
Q
POWER DOWN
RESET
GND
7
Copyright © 2007 iC-Haus
ICHAUS [ IC-HAUS GMBH ]
