Datasheet

Electrical characteristics STM32L073xx
100/137 DocID027096 Rev 2
Table 65. R
AIN
max for f
ADC
= 14 MHz
T
s
(cycles) t
S
(µs) R
AIN
max (kΩ)
(1)
1.5 0.11 0.4
7.5 0.54 5.9
13.5 0.96 11.4
28.5 2.04 25.2
41.5 2.96 37.2
55.5 3.96 50
71.5 5.11 NA
239.5 17.1 NA
1. Guaranteed by design.
Table 66. ADC accuracy
(1)(2)(3)
Symbol Parameter Conditions Min Typ Max Unit
ET Total unadjusted error
1.65 V < V
DDA
= V
REF+
< 3.6 V,
range 1/2/3
-2 4
LSB
EO Offset error - 1 2.5
EG Gain error - 1 2
EL Integral linearity error - 1.5 2.5
ED Differential linearity error - 1 1.5
ENOB
Effective number of bits 10.2 11
bits
Effective number of bits (16-bit mode
oversampling with ratio =256)
(4)
11.3 12.1 -
SINAD Signal-to-noise distortion 63 69 -
dBSNR
Signal-to-noise ratio 63 69 -
Signal-to-noise ratio (16-bit mode
oversampling with ratio =256)
(4)
70 76 -
THD Total harmonic distortion - -85 -73
ET Total unadjusted error
1.65 V < V
REF+
<V
DDA
< 3.6 V,
range 1/2/3
-2 5
LSB
EO Offset error - 1 2.5
EG Gain error - 1 2
EL Integral linearity error - 1.5 3
ED Differential linearity error - 1 2
ENOB Effective number of bits 10.0 11.0 - bits
SINAD Signal-to-noise distortion 62 69 -
dBSNR Signal-to-noise ratio 61 69 -
THD Total harmonic distortion - -85 -65
1. ADC DC accuracy values are measured after internal calibration.
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