參數(shù)資料
型號: DS80CH11
廠商: DALLAS SEMICONDUCTOR
元件分類: Microcontroller
英文描述: 8-BIT, MICROCONTROLLER, PQFP128
封裝: TQFP-128
文件頁數(shù): 86/88頁
文件大?。?/td> 598K
代理商: DS80CH11
DS80CH11
011200 87/88
13.7
A/D CONVERTER SPECIFICATIONS
13.7.1 ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Analog Supply Voltage
AVCC
AGND
VCC
–0.2V
GND–0.2
VCC +0.2
GND +0.2
V
Analog Inputs (Referred to VCC,
GND)
VREF+,
VREF–,
AIN.7–
AIN.0
GND–0.2
VCC +0.2
V
Analog Inputs (Referred to AVCC,
AGND)
VREF+,
VREF–,
AIN.7–
AIN.0
AGND
–0.2
AVCC+0.2
V
13.7.2 A/D ELECTRICAL
CHARACTERISTICS
(0
°C to 70°C; VCC=AVCC =5.0 ± 10% AGND = GND = 0V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Analog Supply Current
AICC
1.0
mA
Analog Power Down Mode
Current
AICCPD
100
A
Analog Input Voltage
VAIN
VRL
VRH
V
Ladder Resistance
RREF
11
19
27
K
Analog Input Capacitance
CIN
10
15
pF
Sampling Time
tADS
5
s
1
Conversion Time
tADC
16
s
1, 2
Stabilization Time
tAD
0
s
4
Transfer Characteristics:
Resolution
8
10
Bits
Differential non–linearity
Il
li
i
EDL
+ 0.3
+ 0.75
LSB
Integral non–linearity
EIL
+ 0.2
+ 1.0
LSB
Offset Error
EOS
+ 0.25
+ 1.0
LSB
O
Gain Error
EG
+ 0.25
+ 1.0
%
Crosstalk between A/D input
pins
ECT
60
dB
NOTES:
1. ACLK = 1
s.
2. A complete conversion cycle requires 16 ACLK periods, including five input sampling periods.
3. Relative accuracy is defined as the deviation of the code transition points from the ideal transfer point on a straight
line from the zero to the full scale of the device.
4. Stabilization time is defined as the time required for the A/D circuitry to stabilize after ADON is set to A logic “1”.
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