Datasheet

Electrical characteristics STM32F303xB STM32F303xC
116/133 DocID023353 Rev 7
PGA gain Non inverting gain value
-2-
-4-
-8-
-16-
R
network
R2/R1 internal resistance values in
PGA mode
(2)
Gain=2 - 5.4/5.4 -
k
Gain=4 - 16.2/5.4 -
Gain=8 - 37.8/5.4 -
Gain=16 - 40.5/2.7 -
PGA gain error PGA gain error -1% - 1%
I
bias
OPAMP input bias current - - 0.2
(3)
µA
PGA BW
PGA bandwidth for different non
inverting gain
PGA Gain = 2,
Cload = 50pF,
Rload = 4 K
-4-
MHz
PGA Gain = 4,
Cload = 50pF,
Rload = 4 K
-2-
PGA Gain = 8,
Cload = 50pF,
Rload = 4 K
-1-
PGA Gain = 16,
Cload = 50pF,
Rload = 4 K
-0.5-
en Voltage noise density
@ 1KHz, Output
loaded with
4K
-109-
@ 10KHz,
Output loaded
with 4 K
-43-
1. Guaranteed by design, not tested in production.
2. R2 is the internal resistance between OPAMP output and OPAMP inverting input.
R1 is the internal resistance between OPAMP inverting input and ground.
The PGA gain =1+R2/R1
3. Mostly TTa I/O leakage, when used in analog mode.
Table 72. Operational amplifier characteristics
(1)
(continued)
Symbol Parameter Condition Min Typ Max Unit
nV
Hz
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