ST7LITES2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST7LITES2

8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI

STMicroelectronics 

ST7LITE0x, ST7LITESx

13.11 8-BIT ADC CHARACTERISTICS

TA = -40°C to 85°C, unless otherwise specified

Symbol

Parameter

Conditions

Min

fADC ADC clock frequency

VAIN Conversion voltage range

VSS

RAIN External input resistor

CADC Internal sample and hold capacitor VDD=5V

tSTAB Stabilization time after ADC enable

tCONV Conversion time (tSAMPLE+tHOLD)

tSAMPLE Sample capacitor loading time

fCPU=8MHz, fADC=4MHz

4

tHOLD Hold conversion time

8

Typ

3

0 2)

3

Max

4

VDD

10 1)

Unit

MHz

V

kΩ

pF

µs

1/fADC

Notes:

1. Unless otherwise specified, typical data are based on TA=25°C and VDD-VSS=5V. They are given only as design guide-

lines and are not tested.

2. Data based on characterization results, not tested in production.

3. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10kΩ). Data

based on characterization results, not tested in production.

4. The stabilization time of the AD converter is masked by the first tLOAD. The first conversion after the enable is then

always valid.

Figure 80. Typical Application with ADC

VAIN

RAIN

AINx

CAIN

VDD

VT

0.6V

VT

0.6V

2kΩ(max)

8-Bit A/D

Conversion

IL

±1µA

CADC

3pF

ST7XX

105/125

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