FS98O21 datasheet(20/136 Pages) FORTUNE

20 / 136 page

FS98O21

Rev. 1.7

20/136

ADC Characteristics (VDD=3V, TA=25 , unless otherwise noted)

℃

Table 2-3 FS98O21 ADC characteristics

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VACIN

ADC Common Mode Input Range

INH,INL,VRH,VRL

to VSS

0.6

2.3

VADIN

ADC Differential Mode Input Range

(INH,INL),

(VRH,VRL)

0.6

Resolution

±15625

Counts

ADC Linearity Error

VRFIN=0.44V

-0.1

+0.1

ADC Input Offset Voltage

With Zero Cancellation

VRFIN=0.44V

VAIN=0

OPAMP Characteristics (VDD=3V, TA=25 , unless otherw

℃

ise noted)

Table 2-4 FS98O21 OPAMP characteristics

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Input Offset

1.5

Input Offset Voltage with Chopper

Rs<100Ω

Input Reference Noise

Rs=100Ω, 0.1Hz~1Hz

1.0

Vpp

Input Reference Noise with Chopper

Rs=100Ω, 0.1Hz~1Hz

0.5

Vpp

Input Bias Current

Input Bias Current with Chopper

100

300

Input Common Mode Range

0.5

2.4

Output Voltage Range

0.5

2.4

Chopper Clock Frequency

S_CHCK[1:0]=11

Capacitor Load

100

VDDA(V) vs Temperature(C)

VDD=3V

3.40

3.45

3.50

3.55

3.60

-50 -40 -30 -20 -10 0

10 20 30 40 50 60 70 80 90 100 110 120 130

Temperature (C)

VDDA

VREF(V) vs Temperature(C)

VDD=3V

1.180

1.185

1.190

1.195

1.200

1.205

-50 -40 -30 -20 -10 0

10 20 30 40 50 60 70 80 90 100 110 120 130

Temperature(C)

VREF

Figure 2-1 VDDA vs Temp @ VDD=3V

Figure 2-2 VREF vs Temp @ VDD=3V

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