mcf51em256 Freescale Semiconductor, Inc, mcf51em256 Datasheet - Page 33

• Manufacturer Part Number: mcf51em256
• Description: Microcontrollers Covers Mcf51em256 Mcf51em128
• Manufacturer: Freescale Semiconductor, Inc

1
2
3
Freescale Semiconductor
Full-Scale
Error
Quantization
Error
Effective
Number of Bits
Signal to Noise
plus Distortion
Total Harmonic
Distortion
Spurious Free
Dynamic
Range
Input Leakage
Error
Temp Sensor
Slope
Temp Sensor
Voltage
Characteristic
All accuracy numbers assume the ADC is calibrated with V
Typical values assume V
only and are not tested in production.
1 LSB = (V
Table 15. 16-bit ADC Characteristics(V
REFH
–V
16-bit differential mode
16-bit single-ended mode
13-bit differential mode
12-bit single-ended mode
11-bit differential mode
10-bit single-ended mode
9-bit differential mode
8-bit single-ended mode
16 bit modes
<13 bit modes
16 bit differential mode
See ENOB
16-bit differential mode
16-bit single-ended mode
16-bit differential mode
16-bit single-ended mode
all modes
–40°C–25°C
25°C–125°C
25°C
Avg = 32
Avg = 16
Avg = 8
Avg = 4
Avg = 1
Avg = 32
Avg = 32
Avg = 32
Avg = 32
REFL
)/2
DDAD
Conditions
N
MCF51EM256 Series ColdFire Microcontroller Data Sheet, Rev.3
= 3.0 V, Temp = 25 °C, f
Preliminary—Subject to Change Without Notice
1
REFH
C
D
C
C
D
C
D
D
D
D
T
T
T
T
= V
ADCK
V
SINAD
ENOB
Symb
SFDR
TEMP25
THD
E
DDAD
E
E
m
FS
Q
IL
=2.0MHz unless otherwise stated. Typical values are for reference
REFH
> 2.7V, V
=V
SINAD
DDAD
14.3
13.8
13.4
13.1
12.4
91.0
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
REFL
=
6.02
I
In
-1 to 0
+12/0
1.646
1.769
701.2
-95.8
Typ
+8/0
±0.7
±0.7
±0.4
±0.4
±0.2
±0.2
14.5
14.0
13.7
13.4
12.6
96.5
= V
* R
—
—
—
⋅
2
AS
ENOB
SSAD
+
+24/0
+24/0
, F
-90.4
Max
±2.0
±2.5
±1.0
±1.0
±0.5
±0.5
±0.5
1.76
—
—
—
—
—
—
—
—
—
—
—
—
ADCK
Electrical Characteristics
< 4MHz, ADHSC=1)
mV/°C
LSB
LSB
Unit
Bits
mV
mV
dB
dB
dB
2
2
V
characteristics)
ADIN
F
F
F
I
Comment
(refer to DC
In
sample
sample
sample
= leakage
current
F
F
F
= V
in
in
in
=
=
=
/100
/100
/100
DDAD
33