STM32F358XC datasheet(116/134 Pages) STMICROELECTRONICS

116 / 134 page

Electrical characteristics

STM32F358xC

116/134

DocID025540 Rev 4

PGA gain

Non inverting gain value

-2

-4

-8

-16

Rnetwork

R2/R1 internal resistance values in

PGA mode (2)

Gain=2

5.4/5.4

Gain=4

16.2/5.4

Gain=8

37.8/5.4

Gain=16

40.5/2.7

PGA gain error PGA gain error

-1%

Ibias

OPAMP input bias current

±0.2(3)

µA

PGA BW

PGA bandwidth for different non

inverting gain

PGA Gain = 2,

Cload = 50pF,

Rload = 4 K

-4

MHz

PGA Gain = 4,

Cload = 50pF,

Rload = 4 K

-2

PGA Gain = 8,

Cload = 50pF,

Rload = 4 K

-1

PGA Gain = 16,

Cload = 50pF,

Rload = 4 K

-0.5

Voltage noise density

@ 1KHz, Output

loaded with

4 K

-109

@ 10KHz,

Output loaded

with 4 K

-43

1. Guaranteed by design, not tested in production.

2. R2 is the internal resistance between OPAMP output and OPAMP inverting input.

R1 is the internal resistance between OPAMP inverting input and ground.

The PGA gain =1+R2/R1

3. Mostly TTa I/O leakage, when used in analog mode.

Table 73. Operational amplifier characteristics(1) (continued)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

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