STM32F302RBT7TR 查看數據表（PDF） - STMicroelectronics

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STM32F302RBT7TR

ARM Cortex-M4F 32b MCU+FPU, up to 256KB Flash+48KB SRAM 4 ADCs, 2 DAC ch., 7 comp, 4 PGA, timers, 2.0-3.6 V operation

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Electrical characteristics

STM32F302xx/STM32F303xx

6.3.19 DAC electrical specifications

Table 70. DAC characteristics

Symbol

Parameter

Min

VDDA

Analog supply voltage for

DAC ON

2.4

RLOAD(1) Resistive load with buffer ON 5

RO(1)

Impedance output with buffer

OFF

-

CLOAD(1) Capacitive load

-

DAC_OUT Lower DAC_OUT voltage

min(1) with buffer ON

0.2

DAC_OUT Higher DAC_OUT voltage

max(1) with buffer ON

-

DAC_OUT Lower DAC_OUT voltage

min(1) with buffer OFF

-

DAC_OUT Higher DAC_OUT voltage

max(1) with buffer OFF

-

DAC DC current

-

IDDA(3) consumption in quiescent

mode (Standby mode)(2)

-

Typ

Max

Unit

Comments

-

3.6

V

-

-

kΩ

When the buffer is OFF, the Minimum

-

15

kΩ

resistive load between DAC_OUT

and VSS to have a 1% accuracy is

1.5 MΩ

Maximum capacitive load at

-

50

pF DAC_OUT pin (when the buffer is

ON).

It gives the maximum output

-

-

V excursion of the DAC.

It corresponds to 12-bit input code

(0x0E0) to (0xF1C) at VDDA = 3.6 V

-

VDDA – 0.2

V and (0x155) and (0xEAB) at VDDA =

2.4 V

0.5

-

mV

It gives the maximum output

excursion of the DAC.

- VDDA – 1LSB V

-

380

µA

With no load, middle code (0x800) on

the input

-

480

µA

With no load, worst code (0xF1C) on

the input

DNL(3)

Differential non linearity

Difference between two

consecutive code-1LSB)

-

-

-

-

Integral non linearity

-

-

(difference between

INL(3)

measured value at Code i

and the value at Code i on a

-

-

line drawn between Code 0

and last Code 1023)

Offset error

-

-

(difference between

Offset(3) measured value at Code

-

-

(0x800) and the ideal value =

VDDA/2)

-

-

Gain

error(3)

Gain error

-

-

±0.5

LSB Given for a 10-bit input code

±2

LSB Given for a 12-bit input code

±1

LSB Given for a 10-bit input code

±4

LSB Given for a 12-bit input code

±10

±3

±12

±0.5

mV

LSB

Given for a 10-bit input code at VDDA

= 3.6 V

LSB

Given for a 12-bit input code at VDDA

= 3.6 V

% Given for a 12-bit input code

112/133

Doc ID 023353 Rev 5

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