參數(shù)資料
型號: PIC16LC74B-16
廠商: Microchip Technology Inc.
英文描述: 8-Bit CMOS Microcontrollers with A/D Converter
中文描述: 8位CMOS微控制器與A / D轉換器
文件頁數(shù): 25/41頁
文件大?。?/td> 322K
代理商: PIC16LC74B-16
PIC16LC74B-16/PTL16
1999 Microchip Technology Inc.
Preliminary
DS30026A-page 25
TABLE 2-16:
A/D CONVERTER CHARACTERISTICS: PIC16LC74B-16/PTL16-04 (COMMERCIAL)
Param
No.
A01
Sym
Characteristic
Min
Typ
Max
Units
Conditions
N
R
Resolution
8 bits
bit
V
REF
= V
DD
V
REF
= V
DD
V
SS
V
AIN
V
REF
V
REF
= V
DD
V
SS
V
AIN
V
REF
V
REF
= V
DD
V
SS
V
AIN
V
REF
V
REF
= V
DD
V
SS
V
AIN
V
REF
V
REF
= V
DD
V
SS
V
AIN
V
REF
V
SS
V
AIN
V
REF
A02
E
ABS
Total Absolute error
< ± 1
LSb
A03
E
IL
Integral linearity error
< ± 1
LSb
A04
E
DL
Differential linearity error
< ± 1
LSb
A05
E
FS
Full scale error
< ± 1
LSb
A06
E
OFF
Offset error
< ± 1
LSb
A10
A20
A25
A30
V
REF
Reference voltage
V
AIN
Analog input voltage
Z
AIN
Recommended impedance of
analog voltage source
I
AD
A/D conversion current (V
DD
)
Monotonicity (Note 3)
guaranteed
V
V
k
2.5V
V
SS
- 0.3
V
DD
+ 0.3
V
REF
+ 0.3
10.0
A40
90
μ
A
Average current consump-
tion when A/D is on.
(Note 1)
During V
AIN
acquisition.
Based on differential of
V
HOLD
to V
AIN
to charge
C
HOLD
A50
I
REF
V
REF
input current (Note 2)
10
1000
10
μ
A
μ
A
During A/D Conversion
cycle
* These parameters are characterized but not tested.
Data in “Typ” column is at 3V, 25
°
C unless otherwise stated. These parameters are for design guidance only and are not
tested.
When A/D is off, it will not consume any current other than minor leakage current. The power-down current spec includes
any such leakage from the A/D module.
V
REF
current is from RA3 pin or V
DD
pin, whichever is selected as reference input.
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
Note 1:
2:
3:
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