SPC572LX datasheet(49/112 Pages) STMICROELECTRONICS

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SPC572Lx

Electrical characteristics

111

ΔTUE12

D TUE degradation due to

VDD_HV_ADR offset with

respect to VDD_HV_ADV

VIN < VDD_HV_ADV

VDD_HV_ADR − VDD_HV_ADV

∈ [0:25 mV]

LSB

(12b)

DVIN < VDD_HV_ADV

VDD_HV_ADR − VDD_HV_ADV

∈ [25:50 mV]

–2

DVIN < VDD_HV_ADV

VDD_HV_ADR − VDD_HV_ADV

∈ [50:75 mV]

–4

DVIN < VDD_HV_ADV

VDD_HV_ADR − VDD_HV_ADV

∈ [75:100 mV]

–6

DVDD_HV_ADV < VIN <

VDD_HV_ADR

VDD_HV_ADR − VDD_HV_ADV

∈ [0:25 mV]

–2.5

2.5

DVDD_HV_ADV< VIN <

VDD_HV_ADR

VDD_HV_ADR − VDD_HV_ADV

∈ [25:50 mV]

–4

DVDD_HV_ADV < VIN <

VDD_HV_ADR

VDD_HV_ADR − VDD_HV_ADV

∈ [50:75 mV]

–7

DVDD_HV_ADV < VIN <

VDD_HV_ADR

VDD_HV_ADR − VDD_HV_ADV

∈ [75:100 mV]

–12

DNL

P Differential non-linearity VDD_HV_ADV > 4 V

VDD_HV_ADR > 4 V

–1

LSB

(12b)

1. 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 maxima may affect device

reliability or cause permanent damage to the device.

2. Characteristics corresponding to SARB channels apply only for slow SAR channels i.e., all SARB channels except AN16,

AN17, and AN24.

3. Minimum ADC sample times are dependent on adequate charge transfer from the external driving circuit to the internal

sample capacitor. The time constant of the entire circuit must allow the sampling capacitor to charge within 1/2 LSB within

the sampling window. Please refer to Figure 12 and Figure 13 for models of the internal ADC circuit, and the values to use

in external RC sizing and calculating the sampling window duration.

4. IADCREFH and IADCREFL are independent from ADC clock frequency. It depends on conversion rate: consumption is driven

by the transfer of charge between internal capacitances during the conversion.

5. Current parameter values are for a single ADC.

6. Total consumption is given by the sum for all ADCs (associated to the reference pin) of their dynamic consumption and their

static consumption.

7. Typical consumption is 2 µA.

8. Typical consumption is 4 µA.

Table 25. SARn ADC electrical specification(1) (continued)

Symbol

Parameter

Conditions

Value

Unit

Min

Max

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