TSL1406R, TSL1406RS
768
×
1 LINEAR SENSOR ARRAY WITH HOLD
TAOS042D
−
APRIL 2007
AO is an op amp-type output that does not require an external pull-down resistor. This design allows a rail-to-rail
output voltage swing.
With V
DD
= 5 V, the output is nominally 0 V for no light input, 2 V for normal white level, and 4.8 V
for saturation light level.
When the device is not in the output phase, AO is in a high-impedance state.
The voltage developed at analog output (AO) is given by:
V
out
= V
drk
+ (R
e
) (E
e
)(t
int
)
where:
V
out
V
drk
R
e
E
e
t
int
is the analog output voltage for white condition
is the analog output voltage for dark condition
is the device responsivity for a given wavelength of light given in V/(μJ/cm
2
)
is the incident irradiance in
μW/cm
2
is integration time in seconds
A 0.1
μF
bypass capacitor should be connected between V
DD
and ground as close as possible to the device.
The
LUMENOLOGY
r
Company
r
r
Copyright
E
2007, TAOS Inc.
www.taosinc.com
3
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
