Microsemi

Integrated Products

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 3

Copyright

© 2002

Rev. 1.4b, 2005-08-10

LX1970

Visible Light Sensor

I N T E GRA T ED

PR ODUC T S

RECOMM END E D O P ERATING CONDITIONS

LX1970

Parameter

Min

Typ

Max

Units

2¹

5.5

V

SNK Compliance Voltage Range

V

SRC Compliance Voltage Range

V

SNK/SRC Output Resistor Range

10

1000

KΩ

ELECTRICAL CHA RACTERISTICS

Unless otherwise specified, the following specifications apply over the operating ambient temperature -40

°C

between 70°C and 85°C are assured by design and characterization.

LX1970

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Supply Voltage Range

2

5.5

Input Supply Current

60

85

110

µA

30

38

46

µA

Output Current

3

-30

-38

-46

µA

Output SNK/SRC Current Matching

0.5

2

%

SNK Minimum Compliance Voltage

current

V

SRC Maximum Compliance Voltage

current

V

SNK/SRC Output Dark Current

10

300

nA

Wavelength of Peak Sensitivity

520

nm

Half Reception Angle

±60

deg

Supply Voltage Coefficient of Output

Current

PSRR

2.2

5

%/V

Sensitivity @ 540nm (peak)

Irradiance current responsivity

2.6

A/(W/cm

Sensitivity Change @ 910nm

4

Current responsivity change with

additional direct light input of 14.6µW/cm

2

at 910nm

-5

0

5

% of peak

Radiant Sensitive Area

Photodiode area

0.369

mm

2

Note 2: The input irradiance is supplied from a white light-emitting diode (LED) optical source adjusted to impose 14.6µW/cm

surface.

Note 3: See Figure 1

Note 4: See Figure 2