SAF-XC835MT-2FGI 查看數據表（PDF） - Infineon Technologies

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SAF-XC835MT-2FGI

8-Bit Single-Chip Microcontroller

Infineon Technologies 

XC835/836

Electrical Parameters

3.2.3 ADC Characteristics

The values in Table 10 are given for an analog power supply of 5.0 V. The ADC can be

used with an analog power supply down to 3 V. But in this case, analog parameters may

show a reduced performance. In the reduced voltage mode (2.5 V < VDDP < 3 V), the

ADC is not recommended to be used.

Table 10

Parameter

ADC Characteristics (Operating Conditions apply; VDDP = 5 V;

fADCI <= 12 MHz)

Symbol

Limit Values Unit Test

Min. Typ. Max.

Conditions /

Remarks

Analog reference

voltage

VAREF

–

VDDP –

V

Analog reference

ground

VAGND

–

VSSP –

V

Alternate analog

reference ground

VAGNDALT SR VSSP - –

0.1

2.51) V

Internal voltage

reference

VINTREF SR 1.19 1.23 1.28 V

Connect

internally to VDDP

Connect

internally to VSSP

Connect to AN0

in differential

mode, See

Figure 9.

4)

Analog input voltage VAIN

SR VAGND –

VAREF V

–

range

ADC clock

fADCI

8

– 16

MHz internal analog

clock

Sample time

tS

CC (2 + INPCR0.STC) × µs

–

tADCI

Conversion time

tC

CC See Section 3.2.3.1 µs

–

Set-up time between tSETUP

conversions using

SR –

35 –

µs

2)

internal voltage

reference

Data Sheet

29

V1.2, 2011-03

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