TSL2014
896
y
1 LINEAR SENSOR ARRAY
TAOS040B
−
MAY 2007
Electrical Characteristics at f
clock
= 200 kHz, V
DD
= 5 V, T
A
= 25°C,
λ
p
= 640 nm, t
int
= 5 ms,
R
L
= 330
Ω,
E
e
= 18μW/cm
2
(unless otherwise noted)
PARAMETER
V
out
V
drk
PRNU
Analog output voltage (white, average over 896 pixels)
Analog output voltage (dark, average over 896 pixels)
Pixel response nonuniformity
Nonlinearity of analog output voltage
Output noise voltage
R
e
SE
V
sat
DSNU
IL
I
DD
I
IH
I
IL
V
OH
V
OL
C
i(SI)
C
i(CLK)
Responsivity
Saturation exposure
Analog output saturation voltage
Dark signal nonuniformity
Image lag
Supply current, output idle
High-level input current
Low-level input current
High-level
High level output voltage SO1 and SO2
voltage,
Low-level
Low level output voltage SO1 and SO2
voltage,
Input capacitance, SI
Input capacitance, CLK
V
I
= V
DD
V
I
= 0
I
O
= 50
μA
I
O
= 4 mA
I
O
= 50
μA
I
O
= 4 mA
4.5
4.95
4.6
0.01
0.4
35
70
0.1
All pixels
See Note 7
See Note 6
See Note 5
2.5
See Notes 2 & 3
See Note 3
See Note 4
16
TEST CONDITIONS
See Note 1
MIN
1.6
0
TYP
2
0.05
7%
±
0.4%
1
22
155
3.4
25
0.5%
53
80
10
10
mA
μA
μA
V
V
pF
pF
120
28
MAX
2.4
0.15
20%
FS
mVrms
V/
(μJ/cm
2
)
nJ/cm
2
V
mV
UNIT
V
V
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
t
su(SI)
t
h(SI)
t
w
t
r
, t
f
Setup time, serial input (see Note 8)
Hold time, serial input (see Note 8 and Note 9)
Pulse duration, clock high or low
Input transition (rise and fall) time
20
0
50
0
500
NOM
MAX
UNIT
ns
ns
ns
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.
Copyright
E
2007, TAOS Inc.
r
r
The
LUMENOLOGY
r
Company
4
www.taosinc.com
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
