MCF51QH128 View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
'MCF51QH128' PDF : 68 Pages View PDF
Analog
Table 24. 16-bit ADC characteristics (VREFH = VDDA, VREFL = VSSA) (continued)
Symbol
ENOB
Description
Conditions1
Effective number 16 bit differential mode
of bits
• Avg=32
• Avg=1
16 bit single-ended mode
• Avg=32
• Avg=1
Min.
TBD
TBD
TBD
TBD
Typ.2
13.6
13.2
TBD
TBD
Max.
—
—
—
—
Unit
Notes
5
bits
bits
bits
bits
SINAD
Signal-to-noise
plus distortion
See ENOB
6.02 × ENOB + 1.76
dB
THD
Total harmonic
distortion
16 bit differential mode
• Avg=32
5
—
–94
TBD
dB
16 bit single-ended mode
• Avg=32
—
TBD
TBD
dB
SFDR
Spurious free
dynamic range
16 bit differential mode
• Avg=32
5
TBD
95
—
dB
16 bit single-ended mode
TBD
TBD
—
dB
• Avg=32
EIL
Input leakage
error
Temp sensor
slope
• –40°C to 25°C
• 25°C to 105°C
IIn × RAS
—
TBD
—
—
TBD
—
mV
mV/°C
mV/°C
IIn =
leakage
current
(refer to
the MCU's
voltage
and
current
operating
ratings)
VTEMP25 Temp sensor
voltage
25°C
—
TBD
—
mV
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.
4. 1 LSB = (VREFH - VREFL)/2N
5. Input data is 1 kHz sine wave.
MCF51QH128 Advance Information Data Sheet, Rev. 0, 05/2011.
38
Preliminary
Freescale Semiconductor, Inc.
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