STM32L475VC datasheet(155/193 Pages) STMICROELECTRONICS

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DocID027692 Rev 2

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STM32L475xx

Electrical characteristics

181

PSRR

Power supply

rejection ratio

Normal mode

CLOAD ≤ 50 pf,

RLOAD ≥ 4 kΩ DC

Low-power mode

CLOAD ≤ 50 pf,

RLOAD ≥ 20 kΩ DC

GBW

Gain Bandwidth

Product

Normal mode

VDDA ≥ 2.4 V

(OPA_RANGE = 1)

550

1600

2200

kHz

Low-power mode

100

420

600

Normal mode

VDDA < 2.4 V

(OPA_RANGE = 0)

250

700

950

Low-power mode

180

280

SR(3)

Slew rate

(from 10 and

90% of output

voltage)

Normal mode

VDDA ≥ 2.4 V

-700

V/ms

Low-power mode

180

Normal mode

VDDA < 2.4 V

-300

Low-power mode

Open loop gain

Normal mode

110

Low-power mode

110

VOHSAT(3)

High saturation

voltage

Normal mode

Iload = max or Rload =

min Input at VDDA.

VDDA -

100

Low-power mode

VDDA -

VOLSAT(3)

Low saturation

voltage

Normal mode

Iload = max or Rload =

min Input at 0.

100

Low-power mode

φm

Phase margin

Normal mode

Low-power mode

Gain margin

Normal mode

Low-power mode

tWAKEUP

Wake up time

from OFF state.

Normal mode

CLOAD ≤ 50 pf,

RLOAD ≥ 4 kΩ

follower

configuration

-5

µs

Low-power mode

CLOAD ≤ 50 pf,

RLOAD ≥ 20 kΩ

follower

configuration

-10

Ibias

OPAMP input

bias current

General purpose

input

-(4)

PGA gain(3)

Non inverting

gain value

-2-

-4-

-8-

-16

Table 74. OPAMP characteristics(1) (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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