MC68HC05P18A Datasheet, PDF (120/130 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Electrical Specifications
13.8 A/D Converter Characteristics
Characteristic⁽¹⁾
Min
Max
Unit
Comments
Resolution
8
8
Bits
Absolute accuracy
V_DD ≥ V_REFH > 4.5
Conversion range
V_REFH
—
+1 1/2
V_SS
V_SS
V_REFH
V_DD
LSB Including quantization
A/D accuracy may decrease
V
proportionately as V_REFH is
reduced below 4.5 V.
Input leakage
AD0, AD1, AD2, AD3
V_REFH
Conversion time⁽²⁾
(Includes sampling time)
—
+1
µA
—
+1
32
32
t_AD
(Note 2)
Monotonicity
Inherent (within total error)
Zero input reading
External
Internal
00
01
00
03
Hex
V_In = 0 V
Full-scale reading
Sample time
FE
FF
Hex
V_In = V_REFH
12
12
t_AD
(Note 3)
Input capacitance
—
12
pF
Analog input voltage
V_SS
V_REFH
V
1. V_DD = 5.0 ± 10% Vdc ± 10%, V_SS = 0 Vdc, T_A = −40°C to +125°C, unless otherwise noted
2. t_AD = t_CYC if clock source equals MCU
Technical Data
Electrical Specifications
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MC68HC05P18A