XMC1200AB Datasheet, PDF (42/76 Pages) Infineon Technologies AG – Microcontroller Series for Industrial Applications

XMC^™1200 AB-Step
XMC^™1000 Family
Electrical Parameter
Table 17 ADC Characteristics (Operating Conditions apply)¹⁾ (cont’d)
Parameter
Symbol
Values
Unit Note / Test Condition
Min. Typ. Max.
Maximum sample rate f_C8 CC –
in 8-bit mode ³⁾
– f_ADC / – 1 sample
38.5
pending
RMS noise ⁴⁾
–
EN_RMS
–
CC
– f_ADC / – 2 samples
54.5
pending
1.5 –
LSB DC input,
12 V_DD = 5.0 V,
V_AIN = 2.5 V,
25°C
DNL error
EA_DNL CC –
±2.0 – LSB
12
INL error
EA_INL CC –
±4.0 – LSB
12
Gain error with
external reference
EA_GAIN
–
CC
±0.5 –
% SHSCFG.AREF = 00_B
(calibrated)
Gain error with internal EA_GAIN –
reference ⁵⁾
CC
±3.6 –
% SHSCFG.AREF = 1X_B
(calibrated),
-40°C - 105°C
–
±2.0 –
% SHSCFG.AREF = 1X_B
(calibrated),
0°C - 85°C
Offset error
EA_OFF CC –
±8.0 –
mV Calibrated,
V_DD = 5.0 V
1) The parameters are defined for ADC clock frequency f_SH = 32MHz, SHSCFG.DIVS = 0000_B. Usage of any
other frequencies may affect the ADC performance.
2) No pending samples assumed, excluding sampling time and calibration.
3) Includes synchronization and calibration (average of gain and offset calibration).
4) This parameter can also be defined as an SNR value: SNR[dB] = 20 × log(A_MAXeff / N_RMS).
With A_MAXeff = 2^N / 2, SNR[dB] = 20 × log ( 2048 / N_RMS) [N = 12].
N_RMS = 1.5 LSB12, therefore, equals SNR = 20 × log (2048 / 1.5) = 62.7 dB.
5) Includes error from the reference voltage.
Data Sheet
42
V1.7, 2016-08
Subject to Agreement on the Use of Product Information