HT85F2240 datasheet(23/147 Pages) HOLTEK

23 / 147 page

Rev. 1.10

�� of 147

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A/D Flash 8051 Core Low Pin Count MCU

HT85F2230/HT85F2240

11 Comparator Electrical Characteristics

Ta=��°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

—

Comparator operating vo�tage

—

�.�

—

�.�

—

Comparator operating c�rrent

�V

LVDCR=00h� ADCR1=08h� i.e.

se�ect interna� bandgap vo�tage

o�tp�t (x�) as VREFI

—

μA

—

Comparator power-down c�rrent

�V

Comparator disab�e

—

0.1

μA

VCMPOS

Comparator inp�t offset vo�tage

�V

—

-10

—

+10

VHP1

Positive H�steresis 1

�V

CP0HP[1:0]=00b

—

VHP�

Positive H�steresis �

�V

CP0HP[1:0]=01b

�

VHP�

Positive H�steresis �

�V

CP0HP[1:0]=10b

1�

�0

VHP4

Positive H�steresis 4

�V

CP0HP[1:0]=11b

1�

��

VHN1

Negative H�steresis 1

�V

CP0HN[1:0]=00b

—

VHN�

Negative H�steresis �

�V

CP0HN[1:0]=01b

�

VHN�

Negative H�steresis �

�V

CP0HN[1:0]=10b

1�

�0

VHN4

Negative H�steresis 4

�V

CP0HN[1:0]=11b

1�

��

VCM

Comparator common mode

vo�tage range

—

VSS

—

VDD-

1.4V

AOL

Comparator open �oop gain

—

tPD

Comparator response time

�V

With 100mV overdrive (Note)

—

μs

�V

Note: Meas�red with comparator one inp�t pin at VCM=(VDD-1.4)/� whi�e the other pin inp�t transition from VSS to

(VCM +100mV) or from VDD to (VCM -100mV).

HT85F2240 Datasheet(PDF) 23 Page - Holtek Semiconductor Inc

HT85F2240 Datasheet(HTML) 23 Page - Holtek Semiconductor Inc

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