STM32U595AI datasheet(281/377 Pages) STMICROELECTRONICS

281 / 377 page

DS13633 Rev 1

281/377

STM32U59xxx

Electrical characteristics

343

See Figure 37: ADC accuracy characteristics, Figure 38: Typical connection diagram when

using the ADC with FT/TT pins featuring analog switch function, and General PCB design

guidelines.

5.3.20

Temperature sensor characteristics

6 bits

(cont’d)

2200

146

7.5

12.5

3300

207

4700

286

12.5

19.5

6800

404

19.5

39.5

10000

584

39.5

22000

1250

79.5

33000

1853

814.5

47000

2607

814.5

1. Specified by design. Not tested in production.

2. BOOSTEN and ANASWVDD configured properly according to VDD and VDDA values.

3. Values without external capacitor.

Table 98. Maximum RAIN for 12-bit ADC4(1)(2)(3) (continued)

Resolution

RAIN max (Ω)

Sampling time [ns]

Sampling cycle at 35 MHz

Sampling cycle at 55 MHz

Table 99. 12-bit ADC4 accuracy(1)(2) (3)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Total unadjusted error

±3

±7.5

LSB

Offset error

±2

±5.5

Gain error

±2

±6.5

Differential linearity error

-0.9/+1

-0.9/+1.5

Integral linearity error

±2

±3.5

ENOB

Effective number of bits

9.9

10.9

bits

SINAD

Signal-to-noise and distortion ratio

61.4

67.4

SNR

Signal-to-noise ratio

61.6

67.5

THD

Total harmonic distortion

-74

-70

1. Evaluated by characterization for BGA packages. Not tested in production. The values for LQFP packages may differ.

2. ADC DC accuracy values are measured after the internal calibration.

3. The I/O analog switch voltage booster is enabled when VDDA < 2.4 V (BOOSTEN = 1 in SYSCFG_CFGR1 when

VDDA < 2.4 V). This switch is disabled when VDDA ≥ 2.4 V. Resolution = 12 bits, no oversampling.

Table 100. Temperature sensor characteristics

Symbol

Parameter

Min

Typ

Max

Unit

TL(1)

VSENSE linearity with temperature

1.3

°C

Avg_Slope(1)

Average slope

2.5

3.0

mV/°C

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