Analog
Table 23. 12-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA) (continued)
Conditions1
• 12 bit modes
Typ.2
-4
Symbol Description
Min.
—
Max.
-5.4
-1.8
Unit
Notes
LSB4
EFS
Full-scale error
VADIN
=
VDDA
• <12 bit modes
—
-1.4
5
LSB4
mV
EQ
EIL
Quantization
error
• 12 bit modes
—
—
0.5
Input leakage
error
IIn × RAS
IIn =
leakage
current
(refer to
the MCU's
voltage
and
current
operating
ratings)
Temp sensor
slope
–40°C to 105°C
25°C
—
—
1.715
719
—
—
mV/°C
mV
VTEMP25 Temp sensor
voltage
1. All accuracy numbers assume the ADC is calibrated with VREFH = VDDA
2. Typical values assume VDDA = 3.0 V, Temp = 25°C, fADCK = 2.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
3. The ADC supply current depends on the ADC conversion clock speed, conversion rate and the ADLPC bit (low power).
For lowest power operation the ADLPC bit should be set, the HSC bit should be clear with 1MHz ADC conversion clock
speed.
1 LSB = (VREFH - VREFL)/2N
4.
5. ADC conversion clock <16MHz, Max hardware averaging (AVGE = %1, AVGS = %11)
6.6.2 CMP and 6-bit DAC electrical specifications
Table 24. Comparator and 6-bit DAC electrical specifications
Symbol
Description
Min.
Typ.
Max.
Unit
VDD
Supply voltage
1.71
—
3.6
V
IDDHS
IDDLS
VAIN
Supply current, High-speed mode (EN=1, PMODE=1)
Supply current, low-speed mode (EN=1, PMODE=0)
Analog input voltage
—
—
—
—
—
—
200
20
μA
μA
V
VSS – 0.3
—
VDD
20
VAIO
Analog input offset voltage
mV
Table continues on the next page...
MCF51JU128 Data Sheet, Rev. 4, 01/2012.
38
Freescale Semiconductor, Inc.
FREESCALE [ Freescale ]
