STM32U073RCT6 datasheet(101/146 Pages) STMICROELECTRONICS

101 / 146 page

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Open loop gain

Low-power mode

110

VOHSAT(2)

High saturation voltage

Normal mode

Iload = max or Rload = min Input

at VDDA.

VDDA

-100

Low-power

mode

VDDA -50

VOLSAT(2)

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

µs

Low-power

mode

CLOAD ≤ 50 pf,

RLOAD ≥ 20 kΩ

follower configuration

Ibias

OPAMP input bias current

General purpose input

-(3)

PGA gain(2)

Non inverting gain value

Rnetwork

R2/R1 internal resistance

values in PGA mode(4)

PGA Gain = 2

80/80

kΩ/kΩ

PGA Gain = 4

120/

PGA Gain = 8

140/

PGA Gain = 16

150/

Delta R

Resistance variation (R1 or R2)

-15

PGA gain error

-1

PGA BW

PGA bandwidth for different non

inverting gain

Gain = 2

GBW/2

MHz

Gain = 4

GBW/4

Gain = 8

GBW/8

Gain = 16

GBW/16

Voltage noise density

Normal mode

at 1 kHz, Output loaded with

4 kΩ

500

nV/√Hz

Low-power

mode

at 1 kHz, Output loaded with

20 kΩ

600

Normal mode

at 10 kHz, Output loaded with

4 kΩ

180

Low-power

mode

at 10 kHz, Output loaded with

20 kΩ

290

IDDA(OPAMP)(2)

OPAMP consumption from

VDDA

Normal mode

no Load, quiescent mode

120

260

µA

STM32U073x8/B/C

Electrical characteristics

DS14548 - Rev 2

page 101/146

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