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STM32U545NET3QTR Datasheet(PDF) 231 Page - STMicroelectronics

Part # STM32U545NET3QTR
Description  Ultra-low-power Arm® Cortex®-M33 MCUTrustZone®FPU,240 DMIPS, 512 KB flash memory, 274 KB SRAM, crypto
PDF  283 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32U545NET3QTR Datasheet(HTML) 231 Page - STMicroelectronics

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DS14216 Rev 1
231/283
STM32U545xx
Electrical characteristics
258
Figure 39. 12-bit buffered/non-buffered DAC
IDDV(DAC)
DAC consumption
from VREF+
DAC output
buffer ON
No load, middle
code (0x800)
-
170
240
µA
No load, worst
code (0x0E4)
-
300
400
DAC output
buffer OFF
No load,
middle/worst code
(0x800)
-
145
180
Sample and hold mode, buffer
ON, CSH = 100 nF (worst code)
-
170 × TON
/(TON +
TOFF)
(4)
400 × TON
/(TON +
TOFF)
(4)
Sample and hold mode, buffer
OFF, CSH = 100 nF (worst code)
-
145 × TON
/(TON +
TOFF)
(4)
180 × TON
/(TON +
TOFF)
(4)
1. Specified by design. Not tested in production.
2. In buffered mode, the output can overshoot above the final value for low input code (starting from the minimum value).
3. Refer to Table 93: I/O static characteristics.
4. TON is the refresh phase duration. TOFF is the hold phase duration (see the product reference manual for more details).
Table 113. DAC characteristics(1) (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
MSv47959V2
12-bit
digital-to-analog
converter
Buffered/non-buffered DAC
DAC_OUTx
RLOAD
CLOAD
Buffer
(1)
(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.
Table 114. DAC accuracy(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
DNL
Differential
non-linearity(2)
DAC output buffer ON
-
-
±2
LSB
DAC output buffer OFF
-
-
±2
-
Monotonicity
10 bits
guaranteed
-
INL
Integral
non-linearity(3)
DAC output buffer ON, CL ≤ 50 pF, RL ≥ 5 kΩ
--
±4
LSB
DAC output buffer OFF, CL ≤ 50 pF, no RL
--
±4



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