TC241

780-

× 488-PIXEL CCD IMAGE SENSOR

SOCS006C – AUGUST 1986 – REVISED DECEMBER 1991

11

POST OFFICE BOX 655303

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

µV/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

Ω

Noise voltage

1/f noise (5 kHz)

0.13

µV/√Hz

Noise voltage

Random noise (f = 100 kHz)

0.11

µV/√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.