ADPD188GG

Data Sheet

Rev. B | Page 4 of 61

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

CATHODE PIN (PDC) VOLTAGE

During All Sampling Periods

1.8

V

Register 0x54, Bit 7 = 0x0; Register 0x3C, Bit 9 = 0

1.3

V

During Time Slot A Sampling

1.8

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[9:8] = 0x1

1.3

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[9:8] = 0x2

TIA_VREF +

0.25

V

0

V

During Time Slot B Sampling

1.8

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[11:10] = 0x1

1.3

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[11:10] = 0x2

TIA_VREF +

0.25

V

0

V

During Sleep Periods

Register 0x54, Bit 7 = 0x0; Register 0x3C, Bit 9 = 1

1.8

V

Register 0x54, Bit 7 = 0x0; Register 0x3C, Bit 9 = 0

1.3

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[13:12] = 0x0

1.8

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[13:12] = 0x1

1.3

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[13:12] = 0x2

TIA_VREF +

0.25

V

Register 0x54, Bit 7 = 0x1; Register 0x54, Bits[13:12] = 0x3

0

V

LEDs

LED Peak Current Setting

Adjustable via the Register 0x22 through Register 0x25

settings

12

370

mA

LED1; Green LED

525

nm

Luminous Intensity

2800

3200

mcd

Photodiode

Responsivity

Wavelength, λ = 525 nm

0.25

A/W

Active Area

Photodiode 1

0.4

Photodiode 2

0.8

POWER SUPPLY VOLTAGES

The ADPD188GG does not require a specific power-up sequence

Applied at the VDD1 and VDD2 pins

1.7

1.8

1.9

V

4

4.5

5.0

V

DC Power Supply Rejection

Ratio (PSRR)

At 75% full scale input signal

24

dB

TEMPERATURE RANGE

Operating

−40

+85

°C

1

Saturation illuminance refers to the amount of ambient light that saturates the ADPD188GG signal. Actual results may vary by factors of up to 2× from 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) closely matches the light produced by solar radiation (sunlight).

3

Minimum LED period = (2 × AFE width) + 5 µs.

4

5

noise with respect to the anode voltage. A differential voltage between the anode and cathode injects a differential current across the capacitance of the photodiode

of the magnitude of C × dV/dt.

6

This setting is not recommended for photodiodes because it causes a 1.3 V forward bias of the photodiode.

7

8

automatically to accommodate the LED turn on voltage and the LED current.

9