ADPD144RI

Data Sheet

Rev. A | Page 4 of 34

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

LEDs

LED Peak Current Setting

Adjustable via Register 0x23 through Register 0x25 settings

(see Table 14)

8.5

370

mA

Dominant Wavelength

Red LED (LED1)

660

nm

Infrared (IR) LED (LED2)

880

nm

Radiant Flux

9

mW

33

mW

Responsivity

Wavelength, λ = 660 nm (Channel 1, Channel 2, Channel 3)

0.36

A/W

Wavelength, λ = 660 nm (Channel 4)

0.31

A/W

Wavelength, λ = 880 nm (Channel 1, Channel 2, Channel 3)

0.25

A/W

Wavelength, λ = 880 nm (Channel 4)

0.28

A/W

Active Area

Individual Photodiodes

Per channel

0.3

Total Active Area

1.2

POWER SUPPLY VOLTAGES

The ADPD144RI does not require a specific power-up sequence

Applied at the VDD1 pin and VDD2 pin

1.7

1.8

1.9

V

Applied at the VLED pin

3

3.5

4.3

V

Power Supply Rejection Ratio (PSRR)

−37

dB

OPERATING TEMPERATURE RANGE

−40

+85

°C

1

Saturation illuminance refers to the amount of light that saturates the analog signal path. Actual results may vary by factors of up to 2× from the typical specifications.

As a point of reference, Air Mass 1.5 (AM1.5) sunlight (brightest sunlight) produces 100 kLux.

2

Blackbody color temperature (T = 5800 K) approximates solar radiation (sunlight).

3

The photodiode layout is shown in Figure 11.

4

integrated LEDs, this voltage appears at the LEDX1 and LEDX2 pins.

5

Table 3.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

LOGIC INPUTS (SCL, SDA)

Input Voltage

High Level

3.6

V

Low Level

V

Input Current

High Level

−10

+10

µA

Low Level

−10

+10

µA

Input Capacitance

10

pF

LOGIC OUTPUTS

INT Output Voltage

High Level

2 mA high level output current

V

Low Level

2 mA low level output current

0.5

V

SDA Output

Low Level Voltage

2 mA low level output current

V

Low Level Current

6

mA