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 VDD = 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:
Vout = Vdrk + (Re) (Ee)(tint)
where:
Vout
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/cm2)
is the incident irradiance in μW/cm2
Vdrk
Re
Ee
tint
is integration time in seconds
A 0.1 μF bypass capacitor should be connected between V and ground as close as possible to the device.
DD
Copyright E 2007, TAOS Inc.
The LUMENOLOGY r Company
r
r
www.taosinc.com
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