HT85F2270 datasheet(26/226 Pages) HOLTEK

26 / 226 page

Rev. 1.00

�6 of ��6

�a� 1�� 01�

Standard 8051 8-Bit Flash MCU

HT85F2260/HT85F2270/HT85F2280

10 ADC Electrical Characteristics

Ta=��°C

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VDD

Conditions

AVDD

A/D Converter Operating Voltage

—

�.7

—

�.�

VADI

A/D Converter Input Voltage

— VREF available

—

VREF

— VREF not available

— AVDD

VREF

A/D Converter Reference Voltage

—

�

— AVDD

DNL

Differential Non-linearit�

—

AVDD=�V

VREF=AVDD

tADCK=1μs

-�

—

+� LSB

INL

Integral Non-linearit�

—

AVDD=�V

VREF=AVDD

tADCK =1μs

-4

—

+4 LSB

IADC

Additional Power Consumption if A/D Converter is used

�V

No load� tADCK=0.5μs

—

1.00 1.40 mA

�V

—

1.�0 �.00 mA

tADCK

A/D Converter Clock Period

—

0.�

—

μs

tADC

A/D Conversion Time (Include Sample and Hold Time)

— 1� bit ADC

—

tADCK

tADS

A/D Converter Sampling Time

—

tADCK

tON�ST

ADC on to ADC start

—

�

—

μs

11 DAC Electrical Characteristics

VDD=�V� AV+=�.0V� VREF=�.4V� no output load unless otherwise specified

Parameter

Test Conditions

Min.

Typ.

Max.

Units

Static Performance

Resolution

—

1�

bits

Integral Nonlinearit�

—

±�

—

LSB

Differential Nonlinearit�

—

±1

LSB

Offset Error

Data Word=0x014

—

±�

±�0

Gain Error

—

±�0

±60

Output Sink Current

—

�00

—

μA

Output Short-Circuit Current

Data Word=0xFFF

—

1�

—

HT85F2270 Datasheet(PDF) 26 Page - Holtek Semiconductor Inc

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