TC271

1080

× 580-PIXEL CCD IMAGE SENSOR

SOCS039A – JANUARY 1994 – REVISED JUNE 1996

16

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)

60

dB

Charge-conversion factor

6.5

µV/e

Charge-transfer efficiency (see Note 3)

0.9999

0.99995

1.000

Signal-response delay time,

τ (see Note 4 and Figure 19)

18

20

22

ns

Gamma (see Note 5)

0.89

0.94

0.99

Output resistance

350

Ω

Noise voltage

1/f noise (5 kHz)

0.1

µV/√Hz

Noise voltage

Random noise (f = 100 kHz)

0.08

µV/√Hz

Noise-equivalent signal

15

electrons

ADB (see Note 6)

20

Rejection ratio at 4.77 MHz

SRGn (see Note 7)

40

dB

ABG (see Note 8)

30

Supply current

4

mA

IAG

12000

SAG1, SAG2

11000

Input capacitance Ci

ABG

4600

pF

Input capacitance, Ci

TMG

120

pF

TRG

160

SRG1, SRG2, SRG3

80

† 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. 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.

4. Signal-response delay time is the time between the falling edge of the SRG clock pulse and the output-signal valid state.

5. Gamma (

γ) is the value of the exponent in the equation below for two points on the linear portion of the transfer-function curve:

Exposure (2)

Exposure (1)

g

+

Output signal (2)

Output signal (1)

6. ADB rejection ratio is – 20 times the logarithm of the ac amplitude on OUTn divided by the ac amplitude on ADB.

7. SRGn rejection ratio is – 20 times the logarithm of the ac amplitude on OUTn divided by the ac amplitude on SRGn.

8. ABG rejection ratio is – 20 times the logarithm of the ac amplitude on OUTn divided by the ac amplitude on ABG.