STM8S105C4B3 datasheet(101/127 Pages) STMICROELECTRONICS

Part #	STM8S105C4B3

Description	Access line, 16 MHz STM8S 8-bit MCU, up to 32 Kbytes Flash, integrated EEPROM,10-bit ADC, timers, UART, SPI, I²C

PDF	127 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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101 / 127 page

Unit

Max

(1)

Typ

Conditions

Parameter

Symbol

0.7

fADC = 4 MHz

1.5

0.6

fADC = 2 MHz

Integral linearity error

(2)

|EL|

1.5

0.6

fADC = 4 MHz

(1) Data based on characterisation results for LQFP80 device with V

REF+/VREF-, not tested

in production.

(2) ADC accuracy vs. negative injection current: Injecting negative current on any of the

analog input pins should be avoided as this significantly reduces the accuracy of the

conversion being performed on another analog input. It is recommended to add a Schottky

diode (pin to ground) to standard analog pins which may potentially inject negative current.

Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in I/O port

pin characteristics does not affect the ADC accuracy.

Figure 45: ADC accuracy characteristics

1. Example of an actual transfer curve.

2. The ideal transfer curve

3. End point correlation line

ET = Total unadjusted error: maximum deviation between the actual and the ideal transfer

curves.

EO = Offset error: deviation between the first actual transition and the first ideal one.

EG = Gain error: deviation between the last ideal transition and the last actual one.

ED = Differential linearity error: maximum deviation between actual steps and the ideal

one.

101/127

DocID14771 Rev 9

Electrical characteristics

STM8S105xx

STM8S105C4B3 Datasheet(PDF) 101 Page - STMicroelectronics

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