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參數(shù)資料
| 型號： | LTC2485 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Easy-to-Use, Ultra-Tiny 16-Bit ADC |
| 中文描述： | 易于使用，超微型16位ADC |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 212K |
| 代理商： | LTC2485 |
LTC2450-1
3
24501fb
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
All voltage values are with respect to GND. V
CC
= 2.7V to 5.5V
unless otherwise specified.
Note 3:
Guaranteed by design, not subject to test.
Note 4:
Integral nonlinearity is defined as the deviation of a code from
a straight line passing through the actual endpoints of the transfer
curve. The deviation is measured from the center of the quantization
band. Guaranteed by design, test correlation and 3 point transfer curve
measurement.
SYMBOL
V
CC
I
CC
PARAMETER
Supply Voltage
Supply Current
Conversion
Sleep
CONDITIONS
MIN
2.7
TYP
MAX
5.5
UNITS
l
V
CS
= GND (Note 6)
CS
= V
CC
(Note 6)
l
l
350
0.05
600
0.5
μA
μA
operating temperature range,otherwise specifications are at T
A
= 25°C. (Note 2)
The
l
denotes the specifications which apply over the full
POWER REQUIREMENTS
range,otherwise specifications are at T
A
= 25°C.
SYMBOL
V
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
OZ
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage Current
CONDITIONS
MIN
TYP
MAX
UNITS
l
V
CC
– 0.3
V
V
l
0.3
10
l
–10
μA
pF
V
V
μA
10
I
O
= –800
μ
A
I
O
= –1.6mA
l
V
CC
– 0.5
l
0.4
10
l
–10
The
l
denotes the specifications which apply over the full operating temperature
range,otherwise specifications are at T
A
= 25°C.
SYMBOL
PARAMETER
t
CONV
Conversion Time
f
SCK
SCK Frequency Range
t
lSCK
SCK Low Period
t
hSCK
SCK High Period
t
1
CS
Falling Edge to SDO Low Z
t
2
CS
Rising Edge to SDO High Z
t
3
CS
Falling Edge to SCK Falling Edge
t
KQ
SCK Falling Edge to SDO Valid
The
l
denotes the specifications which apply over the full operating temperature
CONDITIONS
MIN
14
TYP
16.6
MAX
21
2
UNITS
l
ms
MHz
ns
ns
ns
ns
ns
ns
l
l
250
250
0
0
100
0
l
(Notes 7, 8)
(Notes 7, 8)
l
100
100
l
l
(Note 7)
l
100
Note 5:
CS
= V
CC
. A positive current is flowing into the DUT pin.
Note 6:
SCK = V
CC
or GND. SDO is high impedance.
Note 7:
See Figure 3.
Note 8:
See Figure 4.
Note 9:
Input sampling current is the average input current drawn from
the input sampling network while the LTC2450-1 is actively sampling the
input.
DIGITAL INPUTS AND DIGITAL OUTPUTS
TIMING CHARACTERISTICS
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