參數(shù)資料
型號: DS87C550-QNL
英文描述: EPROM High-Speed Micro with A/D and PWM
中文描述: 存儲器高速微與A / D及PWM
文件頁數(shù): 36/50頁
文件大?。?/td> 763K
代理商: DS87C550-QNL
DS87C550
36 of 50
A/D CONVERTER ELECTRICAL
CHARACTERISTICS
PARAMETER
Analog Supply Voltage
(@ V
CC
= 5V ± 10%, 0-70oC)
TYP
MAX
V
CC
GND
1
TBD
300
SYMBOL
A
VCC
A
VSS
AI
DD
AI
DDI
AI
DDPD
MIN
V
CC
GND
UNITS
V
NOTES
Analog Supply Current
Analog Idle Mode Current
Analog Power-Down Mode
Current
Analog Input Voltage
Internal Reference
External Reference
External Analog Reference
Voltage
Internal Reference Voltage
Change with Temperature
Change with AV
CC
mA
μA
nA
ADC7-
ADC0
0
A
VREF-
2.50
A
VREF+
V
A
VREF-
A
VREF+
V
BG
V
BGT
V
BGV
AV
SS
-0.2
AV
CC
+
0.2
2.5625
V
2.4375
2.50
± 50
± 10
V
PPM/°
C
mV/V
PF
us
t
ACLK
t
ACLK
Bits
LSB
LSB
LSB
%
dB
Analog Input Capacitance
A/D Clock
Sampling Time
Conversion Time
Resolution
Differential non-linearity
Integral non-linearity
Offset Error
Gain Error
Cross-talk between A/D
inputs
C
IN
t
ACLK
t
ADS
t
ADC
10
15
6.25
1
2
5 t
ACLK
16 t
ACLK
3
10
±1.0
±2.0
±2.0
±1.0
-60
E
DL
E
IL
E
OS
E
G
E
CT
NOTES FOR A/D CONVERTER ELECTRICAL CHARACTERISTICS
1.
The following condition must not be exceeded: GND-0.2V < AV
SS
< V
CC
+ 0.2V.
2.
Due to the dynamic nature of the A/D converter, t
ACLK
has both min and max specifications.
3.
A complete conversion cycle requires 16 ACLK periods, including five input sampling periods.
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