S8040 Hamamatsu Photonic Systems, S8040 Datasheet - Page 2

• Manufacturer Part Number: S8040
• Manufacturer: Hamamatsu Photonic Systems

2
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: [phone], Fax: [phone]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]
S8040 incorporates a dual photodiode (0.5 × 0.7 mm active
area per channel) and a control/processing integrated circuit.
When used with an infrared LED and light emitting/receiving
lenses, S8040 detects the distance (near or far) to an object
based on a prespecified distance by utilizing the triangular
distance measurement method.
When making optical design, photodiode 2 of the dual photo-
diode in the photo IC for rangefinder must be set closer to the
infrared LED as shown below.
PHOTO IC FOR
RANGEFINDER
CEXT
TRIG
Block diagram
Functions and optical systems
INFRARED LED
NOTE 1) Terminal polarity
NOTE 2) CEXT and TRIG should be TTL input
ASCILLATION CIRCUIT
DETECTION CIRCUIT
OSCILLATION
CIRCUIT
RELAXIZATION
PD1
PD2
SYNC
TRIG: Starts measurement at Low level
LED: LED is driven at High level
OUT: Changes to High level when signal is input
PD2
PD1
PREAMP
PREAMP
LIGHT RECEIVING LENS
LIGHT EMITTING LENS
GENERATOR
DIGITAL CIRCUIT
TIMING
DIFFERENTIAL BUFFER
ANALOG CIRCUIT
REF. VOLTAGE (HYSTERISIS)
ANALOG CIRCUIT
POWER SUPPLY
VOLTAGE CIRCUIT
CONSTANT
DIGITAL CIRCUIT
POWER SUPPLY
OUTPUT CIRCUIT
LED OUTPUT
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2002 Hamamatsu Photonics K.K.
COMPARATOR
KPICC0056EB
Vcc
OUT
LED
GND
KPICC0065EA
TRIG TERMINAL VOLTAGE
OUT TERMINAL VOLTAGE
OUT TERMINAL VOLTAGE
Self-running mode
(Capacitor of 0.1 µF Typ. is connected between CEXT and GND. TRIG is fixed to High level.)
Single trigger mode
(CEXT is shorted to GND. Low level pulse with at least 20 µs width is applied to TRIG.)
LED TERMINAL VOLTAGE
LED TERMINAL VOLTAGE
Timing chart: consecutive measurements
SUPPLY CURRENT
SUPPLY CURRENT
SUPPLY CURRENT
ACTIVE AREA
(2 ×) 0.5 × 0.7
0.7 ± 0.3
1.5 ± 0.4
Dimensional outline (unit: mm)
2.0
3˚
(INCLUDING BURR)
Photo IC for rangefinder
(NEAR)
I
5˚
STB
I
PD1
STB
4.6 ± 0.2
7.5 ± 0.3
4.5 *
I
CC
I
CC
(FAR)
PD2
105 µs
105 µs
116 µs
116 µs
7 µs
INDEX MARK:
WHITE
7 µs
PHOTOSENSITIVE
SURFACE
1.5 ± 0.4
0.7 ± 0.3
I
STB
T
I
B
STB
I
CC
I
105 µs
STB
116 µs
7 µs
1.0
I
CC
105 µs
Tolerance unless otherwise
noted: ±0.1, ±2˚
Shaded area indicates burr.
Chip position accuracy with
respect to the package
dimensions marked *
116 µs
X, Y
2.0
Vcc
CEXT
TRIG
NC
OUT
GND
NC
NC
NC
LED
S8040
I
STB
7 µs
±0.2, G ±2˚
Cat. No. KPIC1029E02
Jan. 2002 DN
I
STB
KPICC0057EB
KPICA0031EB