IMAGE SENSOR
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.
C7885
Product name
Driver circuit
Feature
High-speed driver circuit for voltage-output type NMOS
linear image sensors.
Has no input/output connector.
A dedicated pulse generator is pre-mounted on the driver
circuit board.
Has no input/output connector.
C7885 driver circuit board is installed in a shield case.
C7885G
Driver circuit + Pulse generator
C7885-20
Multichannel detector head
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 擄C)
Parameter
Symbol
Supply voltage
+Vs
C7885
Current
C7885G
+Is
consumption
C7885-20
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
擄C
擄C
1
1
2
3
4
