STMicroelectronics STM32L151CB Manual page 99

STM32L151x6/8/B, STM32L152x6/8/B
Symbol Parameter
Offset error temperature
(1)
dOffset/dT
coefficient (code 0x800)
(1)
Gain Gain error
Gain error temperature
(1)
dGain/dT
coefficient
(1)
TUE Total unadjusted error
Settling time (full scale:
for a 12-bit code
transition between the
t lowest and the highest
SETTLING
input codes till
DAC_OUT reaches final
value ±1LSB
Max frequency for a
correct DAC_OUT
change (95% of final
Update rate
value) with 1 LSB
variation in the input
code
Wakeup time from off
state (setting the ENx bit
t
WAKEUP
in the DAC Control
(8)
register)
V supply rejection
DDA
PSRR+ ratio (static DC
measurement)
1. Data based on characterization results.
2. Connected between DAC_OUT and V
3. Difference between two consecutive codes - 1 LSB.
4. Difference between measured value at Code i and the value at Code i on a line drawn between Code 0 and last Code 4095.
5. Difference between the value measured at Code (0x800) and the ideal value = V/2.
6. Difference between the value measured at Code (0x001) and the ideal value.
7. Difference between ideal slope of the transfer function and measured slope computed from code 0x000 and 0xFFF when
buffer is OFF, and from code giving 0.2 V and (V
Table 57. DAC characteristics (continued)
V = 3.3V, T
DDA
DAC output buffer OFF
V = 3.3V, T
DDA
DAC output buffer ON
C ≤ 50 pF, R
L
DAC output buffer ON
(7)
No R
LOAD
DAC output buffer OFF
= 3.3V, T
V
DDA
DAC output buffer OFF
= 3.3V, T
V
DDA
DAC output buffer ON
≤ 50 pF, R
C
L
DAC output buffer ON
No R
LOAD
DAC output buffer OFF
C ≤ 50 pF, R
L
≤ 50 pF, R
C
L
≤ 50 pF, R
C
L
C ≤ 50 pF, R
L
.
SSA
DDA
DocID17659 Rev 10
Conditions
= 0 to 50 ° C
A
= 0 to 50 ° C
A
≥ 5 kΩ
L
, C ≤ 50 pF
L
= 0 to 50 ° C
A
= 0 to 50 ° C
A
≥ 5 kΩ
L
≤ 50 pF
, C
L
≥ 5 kΩ
L
≥ 5 kΩ
L
≥ 5 kΩ
L
≥ 5 kΩ
L
– 0.2) V when buffer is ON.
Electrical characteristics
Min Typ Max
-20 -10
0 20
+0.1 /
- +0.2 / -0.5%
-0.2%
- +0 / -0.2% +0 / -0.4%
-10 -2
-40 -8
- 12
- 8
- 7
- -
- 9
- -60
Unit
0
µV/°C
50
%
0
µV/°C
0
30
LSB
12
12 µs
1 Msps
15 µs
-35 dB
99/129
103