STM32L082KB datasheet(99/132 Pages) STMICROELECTRONICS

99 / 132 page

DS10688 Rev 7

99/132

STM32L082xx

Electrical characteristics

109

6.3.17

Temperature sensor characteristics

6.3.18

Comparators

Table 65. Temperature sensor calibration values

Calibration value name

Description

Memory address

TS_CAL1

TS ADC raw data acquired at

temperature of 30 °C, VDDA= 3 V

0x1FF8 007A - 0x1FF8 007B

TS_CAL2

TS ADC raw data acquired at

temperature of 130 °C, VDDA= 3 V

0x1FF8 007E - 0x1FF8 007F

Table 66. Temperature sensor characteristics

Symbol

Parameter

Min

Typ

Max

Unit

TL(1)

1. Guaranteed by characterization results.

VSENSE linearity with temperature

±1

±2°C

Avg_Slope(1)

Average slope

1.48

1.61

1.75

mV/°C

V130

Voltage at 130°C ±5°C(2)

2. Measured at VDD = 3 V ±10 mV. V130 ADC conversion result is stored in the TS_CAL2 byte.

640

670

700

IDDA(TEMP)(3)

Current consumption

3.4

µA

tSTART(3)

3. Guaranteed by design.

Startup time

µs

TS_temp(4)(3)

4. Shortest sampling time can be determined in the application by multiple iterations.

ADC sampling time when reading the temperature

Table 67. Comparator 1 characteristics

Symbol

Parameter

Conditions

Min(1)

Typ

Max(1)

Unit

VDDA

Analog supply voltage

1.65

3.6

VIN

Comparator 1 input voltage

range

-0.6

VDDA

tSTART

Comparator startup time

µs

Propagation delay(2)

Voffset

Comparator offset

±3

±10

dVoffset/dt

Comparator offset variation in

worst voltage stress conditions

VDDA = 3.6 V, VIN+ = 0 V,

VIN- = VREFINT, TA = 25 ° C

1.5

mV/1000 h

ICOMP1

Current consumption(3)

160

260

1. Guaranteed by characterization.

2. The delay is characterized for 100 mV input step with 10 mV overdrive on the inverting input, the non-inverting input set to

the reference.

3. Comparator consumption only. Internal reference voltage not included.

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