Datasheet
Table 17. ADC conversion characteristics (for 10-bit) (continued)
Symbol Parameter Conditions
1
Min Typ Max Unit
ADC Analog Pad
(pad going to one
ADC)
Max leakage 150 °C — —
250 nA
Max positive/negative injection –5 — 5 mA
TUE
IS1WINJ
Total unadjusted error for IS1WINJ Without current injection –4 +/-3 4 LSB
STOP mode to Run mode recovery
time
< 1 µs
1. V
DD
= 3.3 V -5.5, T
J
= –40 to +150 °C, unless otherwise specified and analog input voltage from V
SS_HV_ADC0
to
V
DD_HV_ADC0
.
2. The internally generated clock (known as AD_clk or ADCK) could be same as the peripheral clock or half of the peripheral
clock based on register configuration in the ADC.
3. During the sample time the input capacitance C
S
can be charged/discharged by the external source. The internal
resistance of the analog source must allow the capacitance to reach its final voltage level within t
sample
. After the end of the
sample time t
sample
, changes of the analog input voltage have no effect on the conversion result. Values for the sample
clock t
sample
depend on programming.
4. This parameter does not include the sample time t
sample
, but only the time for determining the digital result and the time to
load the result register with the conversion result.
5. See Figure 5
6. No missing codes.
Table 18. ADC supply configurations
VALID CASE 1 VALID CASE 2 VALID CASE 3 VALID CASE 4
VDD_HV_ADC1 5V 5V 3.3V 3.3V
VDD_HV_ADC1_REF 3.3V 5V 3.3V 5V
ADC1 input pin range 0V to IO segment
supply voltage where
that input pin resides
0 to IO segment supply
voltage where that input
pin resides
0 to IO segment supply
voltage where that input
pin resides
0 to IO segment supply
voltage where that input
pin resides
ADC1 result Valid up to 3.3V, then
full-scale reached
Valid up to 5V Valid up to 3.3V, then
full-scale reached
Valid up to 5V
NOTE
The ADC input pins sit across all three I/O segments,
VDD_HV_A, VDD_HV_B and VDD_HV_C.
4.1.2 Analogue Comparator (CMP) electrical specifications
Table 19. Comparator and 6-bit DAC electrical specifications
Symbol Description Min. Typ. Max. Unit
I
DDHS
Supply current, High-speed mode (EN=1, PMODE=1) — — 250 μA
I
DDLS
Supply current, low-speed mode (EN=1, PMODE=0) — 5 10 μA
V
AIN
Analog input voltage V
SS
— V
IN1_CMP_RE
F
V
V
AIO
Analog input offset voltage -20 — 20 mV
Table continues on the next page...
Analog
MPC5748G Microcontroller Datasheet Data Sheet, Rev. 2, 05/2014.
Freescale Semiconductor, Inc.
Preliminary
25