TSL2014
896 y 1 LINEAR SENSOR ARRAY
TAOS040C AUGUST 2011
4
r
r
Copyright E 2011, TAOS Inc.
The LUMENOLOGY r Company
www.taosinc.com
Electrical Characteristics at f
clock
= 200 kHz, V
DD
= 5 V, T
A
= 25?/SPAN>C, ?/SPAN>
p
= 640 nm, t
int
= 5 ms,
R
L
= 330 ?/SPAN>, E
e
= 18?/SPAN>W/cm
2
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
out
Analog output voltage (white, average over 896 pixels)
See Note 1
1.6
2
2.4
V
V
drk
Analog output voltage (dark, average over 896 pixels)
0
0.05
0.15
V
PRNU
Pixel response nonuniformity
See Notes 2 & 3
7%
20%
Nonlinearity of analog output voltage
See Note 3
?.4%
FS
Output noise voltage
See Note 4
1
mVrms
R
e
Responsivity
16
22
28
V/
(糐/cm
2
)
SE
Saturation exposure
See Note 5
155
nJ/cm
2
V
sat
Analog output saturation voltage
2.5
3.4
V
DSNU
Dark signal nonuniformity
All pixels
See Note 6
25
120
mV
IL
Image lag
See Note 7
0.5%
I
DD
Supply current, output idle
53
80
mA
I
IH
High-level input current
V
I
= V
DD
10
糀
I
IL
Low-level input current
V
I
= 0
10
糀
I
O
= 50 糀
4.5
4.95
V
OH
High-level output voltage, SO1 and SO2
I
O
= 4 mA
4.6
V
I
O
= 50 糀
0.01
0.1
V
OL
Low-level output voltage, SO1 and SO2
I
O
= 4 mA
0.4
V
C
i(SI)
Input capacitance, SI
35
pF
C
i(CLK)
Input capacitance, CLK
70
pF
NOTES:  1.  The array is uniformly illuminated with a diffused LED source having a peak wavelength of 640 nm.
2.  PRNU is the maximum difference between the voltage from any single pixel and the average output voltage from all pixels of the
device under test when the array is uniformly illuminated at the white irradiance level. PRNU includes DSNU.
3.  Nonlinearity is defined as the maximum deviation from a best-fit straight line over the dark-to-white irradiance levels, as a percent
of analog output voltage (white).
4.  RMS noise is the standard deviation of a single-pixel output under constant illumination as observed over a 5-second period.
5.  Minimum saturation exposure is calculated using the minimum V
sat
, the maximum V
drk
, and the maximum R
e
.
6.  DSNU is the difference between the maximum and minimum output voltage in the absence of illumination.
7.  Image lag is a residual signal left in a pixel from a previous exposure. It is defined as a percent of white-level signal remaining after
a pixel is exposed to a white condition followed by a dark condition:
IL +
V
out (IL)
* V
drk
V
out (white)
* V
drk
100
Timing Requirements (see Figure 1 and Figure 2)
MIN
NOM
MAX
UNIT
t
su(SI)
Setup time, serial input (see Note 8)
20
ns
t
h(SI)
Hold time, serial input (see Note 8 and Note 9)
0
ns
t
w
Pulse duration, clock high or low
50
ns
t
r
, t
f
Input transition (rise and fall) time
0
500
ns
NOTES:  8.  Input pulses have the following characteristics: t
r
= 6 ns, t
f
= 6 ns.
9.  SI must go low before the rising edge of the next clock pulse.