
TC241
780-
× 488-PIXEL CCD IMAGE SENSOR
SOCS006C – AUGUST 1986 – REVISED DECEMBER 1991
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating ranges of supply voltage and operating
free-air temperature (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
UNIT
Dynamic range (see Note 2)
Antiblooming disabled (see Note 3)
60
dB
Charge-conversion factor
1.4
1.6
1.8
V/e
Charge-transfer efficiency (see Note 4)
0.9999
0.99995
Signal-response delay time,
τ (see Note 5 and Figure 11)
18
20
22
ns
Gamma (see Note 6)
0.97
0.98
Output resistance
700
800
Noise voltage
1/f noise (5 kHz)
0.13
V/√Hz
Noise voltage
Random noise (f = 100 kHz)
0.11
V/√Hz
Noise-equivalent signal
120
electrons
ADB (see Note 7)
20
Rejection ratio at 4.77 MHz
SRG1, SRG2, SRG3 (see Note 8)
40
dB
ABG (see Note 9)
20
Supply current
5
mA
IAG
12000
SRG1, SRG2, SRG3
120
Input capacitance, Ci
ABG
4000
pF
TRG
350
SAG
14000
All typical values are at TA = 25 °C
NOTES:
2. Dynamic range is – 20 times the logarithm of the mean-noise signal divided by the saturation-output signal.
3. For this test, the antiblooming gate must be biased at the intermediate level.
4. Charge-transfer efficiency is one minus the charge loss per transfer in the output register. The test is performed in the dark using
an electrical input signal.
5. Signal-response delay time is the time between the falling edge of the SRG clock pulse and the output-signal valid state.
6. Gamma (
γ) is the value of the exponent in the equation below for two points on the linear portion of the transfer-function curve (this
value represents points near saturation):
Exposure (2)
Exposure (1)
g
+
Output signal (2)
Output signal (1)
7. ADB rejection ratio is – 20 times the logarithm of the ac amplitude at the output divided by the ac amplitude at ADB.
8. SRGn rejection ratio is – 20 times the logarithm of the ac amplitude at the output divided by the ac amplitude at SRGn.
9. ABG rejection ratio is – 20 times the logarithm of the ac amplitude at the output divided by the ac amplitude at ABG.