SPC584BX datasheet(53/142 Pages) STMICROELECTRONICS

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DS11701 Rev 4

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SPC584Bx

Electrical characteristics

4.12.3

SAR ADC 10 bit electrical specification

The ADC comparators are 10-bit Successive Approximation Register analog-to-digital

converters with full capacitive DAC. The SARn architecture allows input channel

multiplexing.

Note:

The functional operating conditions are given in the DC electrical specifications. Absolute

maximum ratings are stress ratings only, and functional operation at the maxima is not

guaranteed. Stress beyond the listed maximum may affect device reliability or cause

permanent damage to the device.

7. TUE is granted with injection current within the range defined in Table 25, for parameters classified as T and D.

8. DNL is granted with injection current within the range defined in Table 25, for parameters classified as T and D.

Table 27. ADC-Comparator electrical specification

Symbol

Parameter

Conditions

Value

Unit

Min

Max

fADCK

Clock frequency

Standard frequency mode

7.5

13.33

MHz

High frequency mode

>13.33

16.0

tADCINIT

— ADC initialization time

—

1.5

—

µs

tADCBIASINIT

—

ADC BIAS initialization

time

—5

—

µs

tADCINITSBY

—

ADC initialization time

in standby

Standby mode

—

µs

tADCPRECH

T ADC precharge time

Fast channel

1/fADCK

—

µs

Standard channel

2/fADCK

—

VPRECH

Precharge voltage

precision

TJ < 150 °C

0.25

tADCSAMPLE

P ADC sample time(1)

10-bit ADC mode

5/fADCK

—µs

ADC comparator mode

2/fADCK

—µs

tADCEVAL

ADC evaluation time

10-bit ADC mode

10/fADCK

—

µs

ADC comparator mode

2/fADCK

—

IADCREFH(2),(3)

ADC high reference

current

Run mode

(average across all codes)

—7

µA

Power down mode

—

ADC comparator mode

—

19.5

IADCREFL(4)

ADC low reference

current

Run mode

VDD_HV_ADR_S  5.5 V

—15

µA

Power Down mode

VDD_HV_ADR_S  5.5 V

—1

ADC comparator mode

—

20.5

IADV_S(4)

P V

DD_HV_ADV power

supply current

Run mode

—

Power down mode

—

0.04

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