ST7PLIT115BF1M3 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST7PLIT115BF1M3

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI

STMicroelectronics 

ADC CHARACTERISTICS (Cont’d)

Figure 112. ADC Accuracy Characteristics with amplifier enabled

ST7LITE1xB

Digital Result ADCDR

704

1LSBIDEAL

=

V-----D-----D-----–-----V----S-----S--

1024

(2)

ET

EO

EL

108

1 LSBIDEAL

0

1234567

VSS62.5mV

EG

(1) Example of an actual transfer curve

(2) The ideal transfer curve

(3) End point correlation line

(3)

(1)

ED

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.

EL=Integral Linearity Error: maximum deviation

between any actual transition and the end point

correlation line.

701 702 703 704

430mV

Vin (LSBIDEAL)

Vin (OPAMP)

Note:

1. When the AMPSEL bit in the ADCDRL register is set, it is mandatory that fADC be less than or equal to 2 MHz. (if

fCPU=8MHz. then SPEED=0, SLOW=1).

Vout (ADC input)

Vmax

Vmin

0V

Noise

430mV

Vin

(OPAMP input)

141/159

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