Operational Amplifier Characteristics; Table 59. Operational Amplifier Characteristics; Figure 30. 12-Bit Buffered /Non-Buffered Dac - STMicroelectronics STM32L151RE Manual

STM32L151xE STM32L152xE
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
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
8. In buffered mode, the output can overshoot above the final value for low input code (starting from min value).
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.
6.3.19

Operational amplifier characteristics

Symbol
CMIR Common mode input range
VI Input offset voltage
OFFSET
Input offset voltage
ΔVI
OFFSET
drift
I Input current bias
IB
I Drive current
LOAD
I Consumption
DD
Common mode
CMRR
rejection ration
– 0.2) V when buffer is ON.
DDA

Figure 30. 12-bit buffered /non-buffered DAC

Table 59. Operational amplifier characteristics

Parameter
Maximum
calibration range
After offset
calibration
Normal mode
Low-power mode
Dedicated input
General purpose
input
Normal mode
Low-power mode
Normal mode
Low-power mode
Normal mode
Low-power mode
DocID025433 Rev 8
REF+
(1)
Condition
-
-
-
-
-
75 °C
-
-
No load,
quiescent mode
-
-
Electrical characteristics
/2.
(2)
Min Typ Max
0 - V
DD
- - ±15
±1.5
- -
- - ±40
±80
- -
- - 1
- - 10
- - 500
- - 100
- 100 220
- 30 60
- -85 -
- -90 -
(2)
Unit
mV
µV/°C
nA
µA
µA
dB
109/134
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