OPA256C1 [OKI]

Self-Scanning Line Sensor; 自扫描线传感器
OPA256C1
型号: OPA256C1
厂家: OKI ELECTRONIC COMPONETS    OKI ELECTRONIC COMPONETS
描述:

Self-Scanning Line Sensor
自扫描线传感器

传感器
文件: 总10页 (文件大小:183K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
E2P0059-37-X2  
This version: Jan. 1998  
Previous version: May. 1997  
¡ electronic components  
OPA256C–1  
Self-Scanning Line Sensor  
GENERAL DESCRIPTION  
TheOPA256C-1isa256-bit,one-dimensionaldiodearraycomprisedofPNjunctionphotodetector  
diodes and CCDs (charge coupled devices). By using a two-phase clock pulse, transfer pulse,  
and reset pulse, the OPA256C-1 can measure incident light.  
FEATURES  
• CCD for high sensitivity  
• CCD transfer efficiency greater than 99.995%  
• Photodetector configured of PN junction photodetector diodes for good blue sensitivity and  
good output uniformity.  
• Photodiodes highly integrated with 13 µm pitch for high resolution  
• High-speed scanning  
• Low-voltage operation  
• Internal output amplifier and compensating amplifier  
APPLICATIONS  
• Industrial control  
• Pattern recognition  
• Control devices  
• Object detection  
PIN CONFIGURATION  
• Dimensions  
(Unit: mm)  
22.86±±.ꢀ  
18 17 16 15 14 1ꢀ 12 11 1±  
1
*
2
4
5
6
7
8
9
9.8±±.6  
1st Bit  
*
±.46  
2.54  
±.25  
7.62  
2±.ꢀ2±±.25  
* : Indicates photodetector  
location  
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1/10  
IMAGE SENSORS  
OPA256C–1  
• Pin Connection Block Diagram  
CS  
18  
OS  
17  
±D  
16  
f2B  
15  
f1B  
14  
fT  
1ꢀ  
TP1  
12  
TP2  
11  
PG  
1±  
BCCD analog shift register  
Transfer gate  
Photo-gate  
Photodiodes F255 256  
Photo-gate  
1 2  
Transfer gate  
BCCD analog shift register  
1
2
4
5
6
7
8
9
RD  
fR  
OG  
f2A  
f1A  
fT  
TPꢀ  
TP4  
VSS  
SS  
Symbol  
RD  
Name  
Symbol  
TP1  
TP2  
TPꢀ  
TP4  
VSS  
PG  
Name  
Reset transistor drain  
Reset transistor gate clock  
Output gate  
Test pin (electrical input gate)  
Test pin (electrical input diode)  
Test pin (electrical input gate)  
Test pin (electrical input diode)  
Substrate bias  
fR  
OG  
CCD register clock  
CCD register clock  
f1A  
f1B  
f2A CCD register clock  
Photo-gate  
CCD register clock  
f2B  
fT  
OD  
Output transistor drain  
Phototransfer gate clock  
Output transistor source (video output)  
OS  
CS  
Compensating transistor source (noise output)  
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IMAGE SENSORS  
OPA256C–1  
ABSOLUTE MAXIMUM RATINGS  
Test Condition  
Min.  
–4±  
Max.  
+125  
+85  
Unit  
°C  
°C  
V
Parameter  
Symbol  
Storage Temperature  
T
stg  
‚—  
Top  
Vf  
–2±  
Operating Temperature  
Clock Voltage  
–±.ꢀ  
–±.ꢀ  
+18  
Ta=25°C  
VDD  
+18  
V
Applied Voltage  
ELECTRICAL CHARACTERISTICS  
(Ambient Temperature Ta=25°C)  
Parameter  
Reset Drain Voltage  
Symbol  
Min.  
Typ.  
12  
12  
5
Max.  
12.6  
12.6  
5.25  
5.25  
–2.5  
12.6  
±.2  
Unit  
V
VOD  
VRD  
11.4  
11.4  
4.75  
4.75  
–1.5  
11.4  
–±.1  
7
VDD  
V
Output Transistor Drain Voltage  
Output Gate Voltage  
VOG  
VPG  
VSS  
VIS  
V
5
V
Photo Gate Voltage  
–2.±  
12  
±
V
Substrate Bias  
V
Electrical Input Diode Voltage (TP2, 4  
)
VIG  
V
Electrical Input Gate Voltage (TP1, ꢀ  
)
AB  
1, 2  
"H"  
"L"  
"H"  
"L"  
"H"  
"L"  
Vf  
H
VDD  
±.4  
VDD  
±.4  
VDD  
±.4  
8±  
1±  
4
VDD  
±.8  
V
CCD register  
Photo-transfer  
Reset  
AB  
1, 2  
Vf  
L
±
V
AB  
1, 2  
Vf  
7
VDD  
±.8  
V
VfTL  
VfRH  
VfRL  
±
V
7
VDD  
±.8  
V
±
V
fV  
±.1  
4
MHZ  
pF  
pF  
pF  
mW  
kW  
Video Frequency  
AB  
1, 2  
Cf  
CCD register  
Photo-transfer  
CfT  
CfR  
PD  
Reset  
8±  
1
Power Dissipation  
Output Load Resistance  
RL  
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3/10  
IMAGE SENSORS  
OPA256C–1  
POTOELECTRIC CHARACTERISTICS  
(Ambient Temperature Ta=25°C)  
Parameter  
Symbol  
RW  
Min.  
Typ.  
15±±  
25±  
Max.  
Unit  
Note  
*1  
mV/Rx • sec  
Sensitivity  
Vsat  
U
18±  
mV  
%
*2  
Saturation Output Voltage  
Output Uniformity <*±±7*> (Overall)  
Output DC Level  
±7  
*ꢀ  
Vdc  
Vd  
4.±  
V
4
mV  
*4  
Dark Output Voltage  
*1 2856K tungsten lamp  
*2 VRD, VDD=12 V, VSS=2.± V, RL=1 kW  
*ꢀ When it is 5± percent of the saturation output (2856K tungsten lamp.)  
However, this excludes the 1st, 2nd, and 256th bits  
*4 Storage time is assumed to be 1± ms.  
PIXEL CONFIGURATION  
(Ambient Temperature Ta=25°C)  
Parameter  
Arrangement  
Symbol  
Central Value  
Accuracy  
—-  
Unit  
P
Straight line  
256  
1ꢀ  
Number of Pixels  
Pixels Pitch  
±2.±  
mm  
mm  
mm  
mm  
D
8
±2.±  
Photodiode Width  
Aperture Width  
Sensor Length  
W
L
18  
±2.5  
ꢀꢀ28  
±ꢀ.±  
* See output timing for information concerning dummy pixels.  
Pixcel Configration Diagram  
Light shield layer  
(Al)  
W
Photodiode D  
D
P
L
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IMAGE SENSORS  
OPA256C–1  
CLOCK INPUT TIMING CHARACTERISTICS  
(Ambient Temperature Ta=25°C)  
Parameter  
Symbol  
trf  
Min.  
±
Typ.  
ꢀ±  
2±  
2±  
2±  
ꢀ±  
2±  
1±  
1
Max.  
1±±  
1±±  
1±±  
1±±  
1±±  
1±±  
15  
Unit  
ns  
ns  
ns  
ns  
ns  
ns  
ms  
ms  
ms  
ns  
ns  
ns  
ns  
ns  
Note  
Rise time  
*1  
tff  
Fall time  
Register  
tOf1, 2  
tBf1, 2  
trfT  
*2  
*ꢀ  
Overlap time  
Blank time  
Rise time  
5
tffT  
Fall time  
Phototransfer  
tWfr  
tSfT  
*4  
*5  
Transfer time duration  
Setup time  
Hold time  
Rise time  
±
1±  
tHfT  
trfR  
±
1
1±  
8±  
17±  
±
ꢀ±  
2±  
1±±  
1±±  
2±±±  
2±±±  
2±±±  
trfR  
Fall time  
Reset  
tWfR  
tSfR  
tHfR  
Duration  
Setup time  
Hold time  
OPA256C–1 Input Timing Diagrams  
*1  
trf  
AB  
f1AB or f2  
9±%  
AB  
1±±%  
f2AB or f1  
tff  
*2  
fA2 or fB1  
1
2
VOG  
fA1 or fB2  
to f1, 2  
Limited to periods during fA1 rise and fA2 fall, and fB2 rise and fB1 fall.  
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5/10  
IMAGE SENSORS  
OPA256C–1  
*ꢀ  
fA1 or fB2  
fA2 or fB1  
1
2
VOG  
tBf1, 2  
Limited to periods during fA2 rise and fA1 fall, and fB1 rise and fB2 fall.  
*4  
1±%  
AB  
f1  
tSfT  
tWfT  
tHfT  
tffT  
9±%  
5±%  
1±%  
fT  
trfT  
*5  
fA1 or fB2  
9±%  
1±%  
9±%  
1±%  
fB2 or fA1  
tSfR  
tWfR  
tHfR  
9±%  
5±%  
1±%  
fR  
trfR  
tffR  
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6/10  
IMAGE SENSORS  
Input Timing Chart  
OPA256C–1  
tINT  
tS  
tT  
tH  
AB  
AB  
f1  
f2  
fR  
CS  
OS  
D1 D2 Dꢀ  
Dummy output  
DW dummy  
S256  
S255  
S1 S2  
VIDEO OUTPUT TIMING CHARACTERISTICS  
(Ambient Temperature Ta=25°C)  
Guaranteed Values  
Parameter  
Symbol  
Unit  
Note  
Min.  
Typ.  
55  
Max.  
Video Rise Delay Time  
Video Rise Time  
tdrv  
trv  
ns  
ns  
ns  
ns  
55  
Video Fall Delay Time  
Video Fall Time  
tdfv  
tfv  
15  
ꢀ±  
VDD=VRD=Vf=12 V  
RL=1 kW  
tff=ꢀ± ns  
trf=ꢀ5 ns  
trfR=15 ns  
Conditions  
VDG=VPG=5 V  
VSS=–2 V  
CL=ꢀ1 pF  
Ta=25°C  
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7/10  
IMAGE SENSORS  
OPA256C–1  
Output Timing Diagrams  
tff=ꢀ± ns  
trf=ꢀ5 ns  
9±%  
5±%  
f1A.f2B  
1±%  
trf=R15 ns  
9±%  
5±%  
fR  
1±%  
tdrv  
tdfv  
1±%  
9±%  
Video  
trv  
tfv  
TYPICAL CHARACTERISTICS  
• Iluminance vs. Output Characteristics  
1±±±  
5±±  
ffR=1 MHz  
2±±  
1±±  
5±  
RL=1 kW  
2856K tungsten lamp  
Room temperature  
2±  
1±  
5
VRD=12 V  
Vf1.2, fT, fR=12 V  
V
OG=5 V  
VPG=5 V  
SS=–2.± V  
2
1
V
1
2
5
1± 2± 5± 1±±2±± 5±± 1±±±  
Illuminance (Rx)  
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8/10  
IMAGE SENSORS  
OPA256C–1  
• Spectral Sensitivity Characteristic  
1.±  
VRD=12 V  
VOG=5 V  
VPG=5 V  
±.5  
VSS=–2.± V  
VfR=12 V  
±.2  
±.1  
2±±  
4±±  
6±±  
8±±  
1±±±  
12±±  
Wavelength (nm)  
• Dark vs. Temperature Characteristics  
1±±±  
5±±  
2±±  
1±±  
ff  
R
=1 MHz  
VRD=12 V  
5±  
f1, 2, fR, fT=12 V  
V
V
OG=5 V  
PG=5 V  
2±  
1±  
VSS=–2 V  
RL=1 kW  
5
2
1
±
1± 2± ꢀ± 4± 5± 6± 7± 8± 9± 1±±  
Ambient Temperature Ta (°C)  
• M.T.F. Characteristics (White Fluorescent Lamp)  
Single pulse  
(Black) input  
1
Max.  
Min.  
8±  
6±  
4±  
2±  
White  
White  
Black  
Black  
Black  
Continuous  
input  
±
Sensor bit  
MTF=(Max.–Min.) / (Max.+Min.)  
¥1±± (%)  
1
2
5
1±  
¥7.7(Line pair/mm)  
1±±  
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9/10  
+15V  
+5V  
+5  
2±±  
2±±  
±.±1  
6.8  
±.±1  
+5V  
+5V  
5.1K  
6.8  
1±±  
6.8  
1±±  
6.8  
6.8  
±.±1  
±.±1  
±.±1  
RD1ꢀ1ꢀ  
2K  
5K  
RD78N  
RD1ꢀBL  
RD1ꢀBL  
LCO  
ID  
IB  
IB  
IA  
T
6.8  
±.±1  
5.1K  
LCO  
ID  
CL f  
IB  
IB  
IA  
T
LCO  
ID  
IB  
IB  
IA  
T
CL f  
LCO  
ID  
IB  
IB  
IA  
T
5.1K  
+5V  
RD  
OD  
TP2  
TP4  
CS  
CL f  
+5V  
fT  
fT  
2SCꢀ72  
5K  
5.1K  
1±±K  
1±P  
±.±1  
1±±K  
5.1K  
LCO  
ID  
IB  
IB  
IA  
T
J K  
f1A  
f1B  
CL  
f
Im  
Digit  
GND  
mPC159A  
2±K  
+
f
Q
75±  
+
+
+5V  
2K  
f2A  
f2B  
R
1K ꢀ±±  
Q
22P  
5±±  
18K  
CL  
f
+5V  
2SC169  
fH  
ꢀ±±P  
2SCꢀ72  
2.7K  
+5V  
m
A7ꢀꢀ  
OS  
Im  
VSS  
1.8K  
+
TP1.ꢀ  
5.1K  
LCO  
ID  
IB  
IB  
IA  
T
C
CR  
R
Q
J
K
IK  
Analog  
GND  
1S2±75K  
ꢀ±±  
IK  
7416ꢀ  
IB  
IA  
Q
f
Q
68±P  
2K  
CL f  
741±7  
+5V  
1.5K  
5.1K  
7412ꢀ  
DS±±26CN  
RD78N  
5±±  
74±4  
RD1ꢀ8L  
2±±  
6.8  
±.±1  
6.8  
–15V  

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