TSL245R
INFRARED LIGHT-TO-FREQUENCY CONVERTER
TAOS060D − SEPTEMBER 2007
Terminal Functions
TERMINAL
TYPE
DESCRIPTION
NAME
GND
OUT
NO.
1
Power supply ground (substrate). All voltages are referenced to GND.
3
O
Output voltage.
Supply voltage.
V
2
DD
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
DD
Operating free-air temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25°C to 70°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25°C to 85°C
stg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (S Package) . . . . . . . . . . . . . . . . . . . . 260°C
Reflow solder, in accordance with J-STD-020C or J-STD-020D (SM Package) . . . . . . . . . . . . . . . . . . . 260°C
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.
Recommended Operating Conditions
MIN NOM
MAX
5.5
UNIT
V
Supply voltage, V
2.7
5
DD
Operating free-air temperature range, T
−25
70
°C
A
Electrical Characteristics at VDD = 5 V, TA = 25°C (unless otherwise noted)
PARAMETER
High-level output voltage
TEST CONDITIONS
= −4 mA
MIN
TYP
4.5
0.25
2
MAX
UNIT
V
V
V
I
I
4
OH
OL
OH
OL
Low-level output voltage
Supply current
= 4 mA
0.4
3
V
I
mA
kHz
%/V
DD
‡
Full-scale frequency
500
k
Supply-voltage sensitivity
V
= 5 V ±10%
DD
±0.5
SVS
‡
Full-scale frequency is the maximum operating frequency of the device without saturation.
Operating Characteristics at VDD = 5 V, TA = 25°C, λp = 940 nm
PARAMETER
TEST CONDITIONS
MIN
10
TYP MAX
UNIT
2
f
f
Output frequency
Dark frequency
E = 40 μW/cm
20
30
10
kHz
O
D
e
2
E = 0 μW/cm
0.4
Hz
e
kHz/(μW/
cm )
R
e
Irradiance responsivity
0.5
2
f
f
= 0 kHz to 10 kHz
= 0 kHz to 100 kHz
±0.1%
±0.2%
%F.S.
%F.S.
O
O
§
Nonlinearity
1 pulse of new
frequency plus 1 μs
Step response to full-scale step input
§
Nonlinearity is defined as the deviation of f from a straight line between zero and full scale, expressed as a percent of full scale.
O
Copyright E 2007, TAOS Inc.
The LUMENOLOGY r Company
r
r
2
www.taosinc.com
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
