Driver circuit. C7885 Datasheet

C7885 circuit. Datasheet pdf. Equivalent

Part C7885
Description Driver circuit
Feature www.DataSheet4U.com IMAGE SENSOR Driver circuit for NMOS linear image sensor C7885 series Driver.
Manufacture Hamamatsu Corporation
Datasheet
Download C7885 Datasheet




C7885
IMAGE SENSOR
www.DataSheet4U.com
Driver circuit for NMOS linear image sensor
C7885 series
Driver circuit for voltage-output type NMOS linear image sensor
C7885
C7885 series is a driver circuit specifically designed for the Hamamatsu voltage-output type NMOS linear image sensors (S3921 to S3924
series). NMOS linear image sensors are self-scanning photodiode arrays integrated with a scanning circuit of N-channel MOS transistors.
C7885 series supplies start pulses, 2-phase clock pulses and reset pulses necessary for voltage-output type image sensor operation. C7885
series also includes a signal processing circuit that inverts and amplifies video signals from an image sensor. C7885 series operates by input of a
master start pulse, master clock pulse and connection to a power supply (+12 V or +15 V).
C7885-20 is multichannel detector head incorporating driver circuit (C7885) developed for Hamamatsu NMOS linear image sensor. C7885-20 is
designed especially for compactness, having an overall length as short as 40 mm or less. The housing case also provides a shielding effect
against external noise. As useful options, peripheral devices are available for driving C7885-20, and for the output signal processing.
Features
l Suitable for voltage-output type image sensors
l Compact (compared to conventional type C4074)
l Single power supply (+12 V or +15 V) operation
I Selection guide
Type No.
Product name
Feature
High-speed driver circuit for voltage-output type NMOS
C7885
Driver circuit
linear image sensors.
Has no input/output connector.
A dedicated pulse generator is pre-mounted on the driver
C7885G
Driver circuit + Pulse generator circuit board.
Has no input/output connector.
C7885-20
Multichannel detector head
C7885 driver circuit board is installed in a shield case.
Note)
1: Standard input/output connector is FAP-16-07#2 (made by Yamaichi, sold separately). Equivalent connectors are available
from other manufacturers.
2: Custom products with an input/output connector pre-mounted are available on request. Please consult our sales office.
3: When ordering along with a dedicated cable (A8226), C7885 will be shipped with a mating connector pre-mounted.
4: We welcome custom requests. Feel free to contact our sales office.
5: When using current-output type NMOS linear image sensors, refer to C7883/C7884 series data sheets.
I Specifications (Ta=25 °C)
Parameter
Symbol
Supply voltage
+Vs
C7885
Current
consumption
C7885G
C7885-20
+Is
Operation frequency
-
Gain
G
Operating temperature Topr
Storage temperature
Tstg
* No condensation
Condition
+12 V
+12 V
+12 V
Master clock frequency: 3 MHz
Min.
+11.5
-
-
-
-
-
Typ.
+12.0
30
60
30
-
6
0 to +50 *
-10 to +60 *
Max.
+15.5
40
80
40
500
-
Unit
V
mA
mA
mA
kHz
V/pC
°C
°C
1



C7885
Driver circuit for NMOS linear image sensor C7885 series
www.DataSheet4U.com
I Timing chart
MASTER CLOCK CLK
MASTER START Start
START st
CLOCK 1
CLOCK 2
RESET
CLAMP
Trigger
VIDEO OUTPUT Data Video
END OF SCAN EOS
KACCC0120EA
I Dimensional outlines and input/output signal descriptions (unit: mm)
C7885
C7885G
(4 ×) C3
(2 ×) 3.6
2
1
63.5
16
15
(4 ×) C3
(2 ×) 3.6
63.5
1.6 10.0
1.6
7.62
55.88
7.62
7.62
55.88
7.62
Terminal No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
KACCA0086EA
KACCA0106EA
Terminal name
A. GND
+12 V or +15 V
A. GND
NC
A. GND
Data Video
A. GND
A. GND
D. GND
EOS
D. GND
Trigger
D. GND
CLK
D. GND
Start
Description
Analog ground
Power supply
Analog ground
No connection
Analog ground
Analog video signal output; positive polarity
Analog ground
Analog ground
Digital ground
Digital output signal indicating end of scan; negative logic
Digital ground
Digital output signal for A/D conversion; positive logic
Digital ground
Digital input signal for operating the circuit at the rising edge (in case of
C7885G, output signal)
Digital ground
Digital input signal for initializing the circuit; positive logic. (in case of
C7885G, output signal)
Interval of these pulses equals the integration time of the sensor.
2







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