TC271

1080

× 580-PIXEL CCD IMAGE SENSOR

SOCS039A – JANUARY 1994 – REVISED JUNE 1996

17

POST OFFICE BOX 655303

PARAMETER

MIN

TYP

MAX

UNIT

Sensitivity (see Notes 9 and 10)

No IR filter

400

mV/lx

Sensitivity (see Notes 9 and 10)

With IR filter

52

mV/lx

Saturation signal, Vsat (see Note 11)

410

mV

Image-area well capacity

70 x 103

electrons

Blooming-overload ratio (see Note 12)

Exposure time = 1/50 second

125

Smear (see Notes 13 and 14)

0.0014

Output-signal uniformity

VO = 1/2 VU (see Note 10)

1

mV

Dark-signal (see Note 15)

TA = 40°C

5

6

mV

Dark-signal uniformity

TA = 40°C

0.3

mV

Dark current

TA = 21°C

100

pA/cm2

NOTES:

9. Sensitivity is measured at any illumination level that gives an output voltage level less than VU. A CM-500 filter is used.

10. VU is the output voltage that represents the threshold of operation of antiblooming. VU ≈ 1/2 saturation signal.

11. Saturation is the condition in which further increase in exposure does not lead to further increase in output signal.

12. Blooming is the condition in which charge is induced in an element by light incident on another element. Blooming-overload ratio

is the ratio of blooming exposure to saturation exposure.

13. Smear is the measure of error induced by transferring charge through an illuminated pixel in shutterless operation. It is equivalent

to the ratio of the single-pixel transfer time during a fast dump to the exposure time using an illuminated section that is 1/10 of the

image-area vertical height with recommended clock frequencies.

14. The fast-dump clocking rate during vertical timing is 1.0 MHz, and the illuminated section is 1/10 of the height of the image section.

15. Dark-signal level is measured from the dark dummy pixels.