ST7MC1K2-Auto datasheet(350/371 Pages) STMICROELECTRONICS

350 / 371 page

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Electrical characteristics

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto

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Figure 161. Power supply filtering

ADC accuracy with VDD =5.0V

Table 221.

ADC accuracy with VDD =5.0V

Symbol

Parameter

Conditions

Typ

Max(1)

Data based on characterization results, monitored in production to guarantee 99.73% within ± max value

from -40°C to 125°C (± 3

σ distribution limits).

Unit

|ET|

Total unadjusted error(2)

ADC accuracy vs. Negative injection current: Injecting negative current may reduce the accuracy of the

conversion being performed on another analog input. The effect of negative injection current on analog

pins is specified in Section 12.14: 10-bit ADC characteristics on page 347. Any positive injection current

within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in Section 12.8: I/O port pin characteristics on page 329

does not affect the ADC accuracy.

VAREF = 3.0V to 5.0V, fCPU = 8 MHz,

fADC = 4 MHz, RAIN <10kΩ

LSB

|EO|

Offset error(2)

2.5

|EG|

Gain error(2)

|ED|

Differential linearity error(2)

24.5

|EL|

Integral linearity error(2)

VSS

VDD

0.1µF

10pF

VDD

VAREF

VSSA

ST7

digital noise

filtering

External

noise

filtering

1 to 10µF

0.1µF

10pF

(if needed)

Power

supply

source

ST7MC1K2-Auto

ST7MC1K6-Auto

ST7MC2S4-Auto

ST7MC2S6-Auto

Obsolete

Product(s)

- Obsolete

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