STM32F302X8 datasheet(115/139 Pages) STMICROELECTRONICS

Part #	STM32F302X8

Description	Arm® Cortex®-M4 32-bit MCUFPU, up to 64 KB Flash, 16 KB SRAM, ADC, DAC, USB, CAN, COMP, Op-Amp, 2.0 - 3.6 V

PDF	139 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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115 / 139 page

DS9896 Rev 8

115/139

STM32F302x6 STM32F302x8

Electrical characteristics

117

PGA gain

Non inverting gain value

-2

-4

-8

-16

Rnetwork

R2/R1 internal resistance values

in PGA mode (3)

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(4)

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.

2. The saturation voltage can also be limited by the ILOAD (drive current).

3. 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.

4. 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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