ADC10 Characteristics
MC68HC908JL16 Data Sheet, Rev. 1.1
Freescale Semiconductor
213
Analog source impedance
RAS
——
10
k
External to
MCU
Ideal resolution (1 LSB)
10-bit mode
RES
1.758
5
5.371
mV
VREFH/2
N
8-bit mode
7.031
20
21.48
Total unadjusted error
10-bit mode
ETUE
0
±2.0
±2.5
LSB
Includes
quantization
8-bit mode
0
±0.7
±1.0
Differential non-linearity
10-bit mode
DNL
0
±0.5
—
LSB
8-bit mode
0
±0.3
—
Monotonicity and no-missing-codes guaranteed
Integral non-linearity
10-bit mode
INL
0
±0.5
—
LSB
8-bit mode
0
±0.3
—
Zero-scale error
10-bit mode
EZS
0
±0.5
—
LSB
VADIN = VSS
8-bit mode
0
±0.3
—
Full-scale error
10-bit mode
EFS
0
±2.0
—
LSB
VADIN = VDD
8-bit mode
0
±0.3
—
Quantization error
10-bit mode
EQ
——
±0.5
LSB
8-bit mode is
not truncated
8-bit mode
—
±0.5
Input leakage error
10-bit mode
EIL
0
±0.2
±5
LSB
Pad leakage(4)
* RAS
8-bit mode
0
±0.1
±1.2
Bandgap voltage input(5)
VBG
1.17
1.245
1.32
V
1. Typical values assume VDD = 5.0 V, temperature = 25°C, fADCK = 1.0 MHz unless otherwise stated. Typical values are for
reference only and are not tested in production.
2. Incremental IDD added to MCU mode current.
3. Values are based on characterization results, not tested in production.
4. Based on typical input pad leakage current.
5. LVI must be enabled, (LVID = 0, in CONFIG1). Voltage input to ADCH4:0 = $1A, an ADC conversion on this channel allows
user to determine supply voltage.
Table 17-11. ADC10 Characteristics
Characteristic
Conditions
Symbol
Min
Typ(1)
Max
Unit
Comment