TC253SPD-30 Datasheet, PDF (9/21 Pages) Texas Instruments – 680 x 500 PIXEL IMPACTRON CCD IMAGE SENSOR

TC253SPDĆ30
680 × 500 PIXEL IMPACTRON CCD IMAGE SENSOR
JULY 2003 − SOCS085
electrical characteristics over recommended operating ranges of supply voltage at operating
free-air temperature (unless otherwise noted)
Charge multiplication gain
PARAMETER
MIN TYP‡ MAX UNIT
1
30
(100)§
Excess noise factor for typical CCM gain (see Note 5)
1
1.4
Dynamic range without CCM gain
64
dB
Dynamic range with typical CCM gain (see Note 6)
66
dB
Charge conversion gain without CCM gain (see Note 7)
9
µV/e-
τ
Signal-response delay time (see Note 8)
9
ns
Output resistance
Amplifier noise-equivalent signal without CCM gain†
320
Ω
29
e- rms
Response linearity without CCM gain
1
Response linearity with typical CCM gain
1
Charge-transfer efficiency (see Note 9)
0.9998 0.9999
Supply current
2
3
4
mA
IAG1
3
IAG2
3.2
IAG1-IAG2
SAG1
2
nF
3
SAG2
3.6
Ci
Input capacitance
SAG1-SAG2
2.2
SRG1
40
SRG2
40
SRG1−SRG2
CMG
50
pF
30
CMG−SRG1
10
ODB
1,000
ADB high (see Note 10)
20
SRG−1,2 high (Note 10)
45
Pulse amplitude rejection ratio
SRG−1,2 low (Note 10)
45
dB
CMG high (see Note 10)
45
CMD low (see Note 10)
45
OBD low (see Note 10)
45
† _{The values in the table are quoted using CDS = correlated double sampling. CDS is a signal-processing technique that improves performance}
by minimizing undesirable effects of reset noise.
‡ _{All typical values are at TA = 25°C.}
§ _{Maximum CCM gain is not ensured.}
NOTES: 5. Excess noise factor F is defined as the ratio of noise sigma after multiplication divided by M times the noise sigma before
multiplication, where M is the charge multiplication gain.
6. Dynamic range is – 20 times the logarithm of the noise sigma divided by the saturation-output signal amplitude.
7. Charge-conversion factor is defined as the ratio of output signal to input number of electrons.
8. Signal-response delay time is the time between the falling edge of the SRG2 pulse and the output-signal valid state.
9. Charge transfer efficiency is one minus the charge loss per transfer in the CCD register.
10. Rejection ratio is – 20 times the logarithm of the output referenced to the reset level divided by the 1 V of amplitude change of the
corresponding gate or terminal signal.
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