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參數(shù)資料
| 型號： | MAX1086 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 150ksps, 10-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs in SOT23 |
| 中文描述： | 150ksps、10位、雙通道單端及單通道真差分ADC，SOT23封裝 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大小： | 334K |
| 代理商： | MAX1086 |
M
150ksps, 10-Bit, 2-Channel Single-Ended, and
1-Channel True-Differential ADCs in SOT23
_______________________________________________________________________________________
9
Analog Input Protection
Internal protection diodes which clamp the analog input
to V
DD
and GND allow the analog input pins to swing
from GND - 0.3V to V
DD
+ 0.3V without damage. Both
inputs must not exceed V
DD
by more than 50mV or be
lower than GND by more than 50mV for accurate conver-
sions.
If an off-channel analog input voltage exceeds
the supplies, limit the input current to 2mA.
Internal Clock
The MAX1086
–
MAX1089 operate from an internal oscilla-
tor, which is accurate within 10% of the 4MHz specified
clock rate. This results in a worse case conversion time
of 3.7μs. The internal clock releases the system micro-
processor from running the SAR conversion clock and
allows the conversion results to be read back at the
processor
’
s convenience, at any clock rate from 0 to
8MHz.
CNVST
SCLK
DOUT
HIGH-Z
t
ACQ
t
CONV
SAMPLING INSTANT
4
1
8
12
B9
MSB
B8
B7
B6
B5
B4
B3
B2
B1
B0
LSB
S1
S0
HIGH-Z
CNVST
SCLK
DOUT
HIGH-Z
t
ACQ
t
CONV
SAMPLING INSTANT
4
1
8
12
B9
MSB
B8
B7
B6
B5
B4
B3
B2
B1
B0
LSB
S1
S0
HIGH-Z
Figure 5b. Single Conversion AIN2 vs. GND (MAX1086/MAX1087), bipolar mode AIN+ vs. AIN- (MAX1088/MAX1089)
Figure 5a. Single Conversion AIN1 vs. GND (MAX1086/MAX1087), unipolar mode AIN+ vs. AIN- (MAX1088/MAX1089)
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