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AS7038RB

Electrical Characteristics

Datasheet

• PUBLIC

DS000726

• v2-00 • 2021-Jun-02

126

│ 13

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VNOISE_ECG

Input referred

noise

Gain=192 V/V, short

circuited inputs, sample

rate = 1000sps, BW

0.33 Hz÷100 Hz. Filtered

1.64

μVrms

LED Driver

ILED1/2/3/4

V_Dmin

LED output

current range

tolerance

LED current is adjustable

with 10 bits

– registers

curr1/2/3/4 csx_boost = 0

100

LED current is adjustable

with 10 bits

– registers

curr1/2/3/4 csx_boost = 1

200

At 35 mA output current

(currX[9:0]=166 h,

X=1…4), VDD<5.0 V

-7

V_Dmin

Min output

voltage

compliance

csx_boost = 0

0.3

csx_boost = 1

0.7

V_Dmax

Max output

voltage

compliance

5.5

Photodiode

Area

Photodiode

area

2.5

mm2

RePD1-4

Irradiance

responsivity

photodiode

PD1…PD4

Wavelength = 550 nm;

4 photodiodes (PD1 -

PD4) connected

together; TIA resistor

(pd_ampres) = 3 MΩ

212

Counts/

(µW/cm2)

Irradiance

responsivity

photodiode B

Wavelength = 940 nm;

TIA resistor (pd_ampres)

= 3 MΩ

Dark current

Ee=0, TAMB =25 °C

Ios

Extrapolated

offset current

TAMB =25 °C

-1

ADC

Vref

ADC

reference

voltage

1.6

Nbit

Resolution

Bit

INL

Relative

accuracy

TAMB =25 °C

-8

LSB

DNL(3)

Differential

nonlinearity

TAMB =25 °C

1.5

LSB

Offset error

TAMB =25 °C

-8

LSB

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