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Preliminary Electrical Characteristics
Freescale Semiconductor
28
Zero-Scale
Error
12-bit single-ended mode
EZS
—
±0.7
±2.0
LSB2
TVADIN =
VSSAD
11-bit differential mode
10-bit single-ended mode
—
±0.4
±1.0
T
9-bit differential mode
8-bit single-ended mode
—
±0.2
±0.5
T
Full-Scale
Error
12-bit single-ended mode
EFS
—
±1.0
±3.5
LSB2
TVADIN =
VDDAD
11-bit differential mode
10-bit single-ended mode
—
±0.4
±1.5
T
9-bit differential mode
8-bit single-ended mode
—
±0.2
±0.5
T
Quantization
Error
All modes
EQ
——
±0.5
LSB2
D
Input
Leakage
Error
all modes
EIL
IIn * RAS
mV
D
IIn = leakage
current
(refer to DC
characteristi
cs)
Temp Sensor
Slope
–40
°C – 25°C
m
—
1.646
—
mV/×
C
25
°C – 125°C
—
1.769
—
Temp Sensor
Voltage
25
°CV
TEMP2
5
—701.2
—
mV
C
1 All accuracy numbers assume the ADC is calibrated with V
REFH=VDDAD
2 Typical values assume V
DDAD = 3.0V, Temp = 25°C, fADCK=2.0MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
3 1 LSB = (V
REFH - VREFL)/2
N
Table 16. 12-bit SAR ADC Characteristics full operating range
(VREFH = VDDAD, > 1.8, VREFL = VSSAD ≤ 8 MHz) (Continued)
Characterist
ic
Conditions1
Symb
Min
Typ2
Max
Unit
C
Comment
Preliminary — Subject to Change