Datasheet

MC56F825x/MC56F824x Digital Signal Controller, Rev. 3
Specifications
Freescale Semiconductor68
7.24 COP Specifications
7.25 Analog-to-Digital Converter (ADC) Parameters
Table 40. COP Specifications
Parameter Symbol Min Typ Max Unit
Oscillator output frequency LPFosc 500 1000 1500 Hz
Oscillator current consumption in partial power down mode IDD TBD nA
Table 41. ADC Parameters
1
Parameter Symbol Min Typ Max Unit
DC Specifications
Resolution
R
ES
12 — 12 Bits
ADC internal clock
f
ADIC
0.1 — 15 MHz
Conversion range
R
AD
V
REFL
—V
REFH
V
ADC and VREF power-up time
2
(from
power down mode)
t
ADPU
—13 —
t
AIC
cycles
3
VREF power-up time (from low power
mode)
t
REFPU
—6 —
t
AIC
cycles
3
ADC RUN current (Speed Control setting)
at 100 kHz ADC clock (Standby Mode)
at ADC clock ≤ 5 MHz (00)
at 5 MHz < ADC clock ≤ 12 MHz (01)
at 12 MHz < ADC clock ≤ 15 MHz (10)
I
ADRUN
—
—
—
—
0.6
10
17
27
—
—
—
—
mA
Conversion time
t
ADC
—6 —
t
AIC
cycles
3
Sample time
t
ADS
—1 —
t
AIC
cycles
3
Accuracy (DC or absolute) (gain of 1x, 2x, 4x and f
ADC
≤ 10 MHz) (all data in single-ended mode)
4
Integral non-linearity
5
(Full input signal range)
INL — +/- 3 +/- 6
LSB
6
Differential non-linearity
5
DNL — +/- 0.6 +/- 1
LSB
5
Monotonicity
GUARANTEED
Offset Voltage Internal Ref
V
OFFSET
— +/- 8 +/- 15 mV
Offset Voltage External Ref
V
OFFSET
— +/- 8 +/- 15 mV
Gain Error (transfer gain)
E
GAIN
— 0.995 to 1.005 1.01 to 0.99 —
ADC Inputs
7
(Pin Group 3)
Input voltage (external reference)
V
ADIN
V
REFL
—V
REFH
V
Input voltage (internal reference)
V
ADIN
V
SSA
—V
DDA
V
Input leakage
I
IA
—0 +/- 2μA
V
REFH
current
I
VREFH
—0.001 —μA
Input injection current
8
, per pin
I
ADI
—— 3mA
Input capacitance
C
ADI
—See Figure 31 —pF