MC9S08MM128 Datasheet, PDF (31/50 Pages) Freescale Semiconductor, Inc – Advanced Information

Preliminary Electrical Characteristics
Table 16. 16-bit SAR ADC Characteristics full operating range
(V_REFH = V_DDAD, > 1.8, V_REFL = V_SSAD ≤ 8 MHz) (Continued)
Characterist
ic
Conditions¹
Symb Min
Typ²
Max
Unit
C
Comment
Effective
Number of
Bits
Signal to
Noise plus
Distortion
16-bit differential mode
Avg=32
Avg=16
Avg=8
Avg=4
Avg=1
16-bit single-ended mode
Avg=32
Avg=16
Avg=8
Avg=4
Avg=1
See ENOB
ENOB
Bits
12.8 14.2
—
12.7 13.8
—
12.6 13.6
—
12.5 13.3
—
11.9 12.5
—
—
13.2
—
—
12.8
—
—
12.6
—
—
12.3
—
—
11.5
—
SINAD SINAD = 6.02 ⋅ ENOB + 1.76 dB
C
F_in =
F_sample/100
D
Total
Harmonic
Distortion
16-bit differential mode
Avg=32
16-bit single-ended mode
Avg=32
THD
—
-91.5 -74.3
dB
—
-85.5
—
C
F_in =
F_sample/100
D
Spurious
Free
Dynamic
Range
16-bit differential mode
Avg=32
SFDR
75.0 92.2
—
16-bit single-ended mode
Avg=32
—
86.2
—
dB
C
F_in =
F_sample/100
D
Input
Leakage
Error
all modes
E_IL
I_In * R_AS
mV
D I_In = leakage
current
(refer to DC
characteristi
cs)
Temp Sensor
Slope
–40°C – 25°C
m
—
1.646
—
mV/× C
C
25°C – 125°C
—
1.769
—
Temp Sensor 25°C
Voltage
V_TEMP2
—
701.2
—
5
mV
C
1 _{All accuracy numbers assume the ADC is calibrated with VREFH=VDDAD}
2 _{Typical values assume VDDAD = 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 = (VREFH - VREFL)/2}N
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Preliminary — Subject to Change