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C7942CA Datasheet, PDF (2/8 Pages) Hamamatsu Corporation – Flat panel sensor
Flat panel sensor C7942CA, C7943CA
s Functional specification
Parameter
Readout
Feedback capacitance of each amplifier
Video output (Data1 - 12)
Output data rate
Synchronous signal (Vsync, Hsync, Pclk)
bin0, 1, ExtTrg, IntExt
C7942CA
C7943CA
Charge amplifier array
0.15 pF
0.6 pF
RS-422 (differential) 12 bit
15.15 MHz
RS-422 (differential)
TTL
s Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Value
Unit
Supply voltage for digital circuitry (+5 V)
D.vdd
+6.0
V
Supply voltage for analog circuitry (+5 V)
A.vdd
+6.0
V
Supply voltage for analog circuitry (±7.5 V)
V(+/-7.5)
±12
V
Input voltage (bin0, 1, ExtTrg, IntExt)
Vin
0 to 6.0
V
Operating temperature (not condensed)
Topr
0 to +35
°C
Storage temperature (not condensed)
Tstg
0 to +50
°C
s Specification (Unless otherwise noted, Typ. Ta=25 °C A.vdd= 5.0 V, D.vdd= 5.0 V, V (±7.5)= ±7.5 V)
Parameter
Symbol
C7942CA
C7943CA
Unit
Pixel size
50
100
µm
Active area
120 × 120
124.8 × 124.8
mm
Pixel number
5.76
(2400 × 2400)
1.56
(1248 × 1248)
M pixels
Number of active pixels (horizontal × vertical)
-
2240 × 2368
1216 × 1232
pixels
Frame speed (single operation)
Sf (int)
2
7
frame/s
Frame speed (2 × 2 binning)
4
15
frame/s
Frame speed (4 × 4 binning)
9
30
frame/s
Frame speed external (single operation)
Sf (ext)
Sf (int) to 0.1
Sf (int) to 0.1
frame/s
Noise (rms.)
N (rms.)
1100
2300
electrons
Saturation charge
Csat
2.2
10
M electrons
Resolution
Reso
8
5
line pairs/mm
Dynamic range
2000
4300
-
Defect line *
-
20 Max.
10 Max.
lines
Scintillator
-
CsI
-
* W ithout a couple of adjacent defect line that has no response.
s Timing chart
To acquire images through an image grabber board, parameters that match the following timing chart should be described in the
software program or parameter file.
Internal mode
Tvc (1 FRAME)
Tvdpw
Vsync+
(RS-422)
Thd
Thdpw
Thc (1 LINE)
Hsync+
(RS-422)
Hsync+
(RS-422)
Pclk+
(RS-422)
Thdpw
Thc (1 LINE)
Tpd Tpc (1 PIXEL) Tppw Tpdb
Data1 - 12
(RS-422)
Tdd
Tdc
12
Tpdb
n-1 n n+1
8n-1 8n
In case of C7942CA, the number of n is 300.
In case of C7943CA the number of n is 156.
KACCC0138EB
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