STM32F051X8 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F051X8

ARM®-based 32-bit MCU, 16 to 64 KB Flash, 11 timers, ADC, DAC and communication interfaces, 2.0-3.6 V

STMicroelectronics 

STM32F051x4 STM32F051x6 STM32F051x8

Electrical characteristics

Table 55. DAC characteristics (continued)

Symbol

Parameter

Min Typ

Max

Unit

Comments

Gain error(3) Gain error

-

-

±0.5

%

Given for the DAC in 12-bit

configuration

Settling time (full scale: for a

10-bit input code transition

tSETTLING(3)

between the lowest and the

highest input codes when

-

3

DAC_OUT reaches final

value ±1LSB

4

µs CLOAD ≤ 50 pF, RLOAD ≥ 5 kΩ

Max frequency for a correct

Update

rate(3)

DAC_OUT change when

small variation in the input

-

-

code (from code i to i+1LSB)

1

MS/s CLOAD ≤ 50 pF, RLOAD ≥ 5 kΩ

Wakeup time from off state

tWAKEUP(3) (Setting the ENx bit in the

-

6.5

10

CLOAD ≤ 50 pF, RLOAD ≥ 5 kΩ

µs input code between lowest and

DAC Control register)

highest possible ones.

Power supply rejection ratio

PSRR+ (1) (to VDDA) (static DC

- –67

–40

dB No RLOAD, CLOAD = 50 pF

measurement

1. Guaranteed by design, not tested in production.

2. The DAC is in “quiescent mode” when it keeps the value steady on the output so no dynamic consumption is involved.

3. Data based on characterization results, not tested in production.

Figure 27. 12-bit buffered / non-buffered DAC

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1. The DAC integrates an output buffer that can be used to reduce the output impedance and to drive external

loads directly without the use of an external operational amplifier. The buffer can be bypassed by

configuring the BOFFx bit in the DAC_CR register.

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