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LTC2453

更新时间： 2023-12-20 18:44:05
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亚德诺 - ADI /
页数 文件大小 规格书
18页 285K
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具 I2C 接口的超纤巧、差分、16 位 ΔΣ ADC

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LTC2453 数据手册

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LTC2453  
I2C TIMING CHARACTERISTICS The l denotes the specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 7)  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
13  
TYP  
MAX  
23  
UNITS  
ms  
kHz  
µs  
l
l
l
l
l
l
l
l
l
l
l
l
l
t
f
t
t
t
t
t
t
t
t
t
t
t
Conversion Time  
16.6  
CONV  
SCL  
SCL Clock Frequency  
0
400  
Hold Time ±Repeated) START Condition  
LOW Period of the SCL Pin  
HIGH Period of the SCL Pin  
Set-Up Time for a Repeated START Condition  
Data Hold Time  
0.6  
HD±SDA)  
LOW  
1.3  
µs  
0.6  
µs  
HIGH  
SU±STA)  
HD±DAT)  
SU±DAT)  
r
0.6  
µs  
0
0.9  
µs  
Data Set-Up Time  
100  
ns  
Rise Time for SDA, SCL Signals  
Fall Time for SDA, SCL Signals  
Set-Up Time for STOP Condition  
Bus Free Time Between a Stop and Start Condition  
±Note 6)  
±Note 6)  
20 + 0.1C  
20 + 0.1C  
0.6  
300  
300  
ns  
B
ns  
f
B
µs  
SU±STO)  
BUF  
1.3  
µs  
Output Fall Time V  
to V  
Bus Load C 10pF to  
20 + 0.1C  
250  
50  
ns  
OF  
IHMIN  
ILMAX  
B
B
400pF ±Note 6)  
l
t
SP  
Input Spike Suppression  
ns  
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.  
Guaranteed by design and test correlation.  
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 5. Input sampling current is the average input current drawn from  
the input sampling network while the LTC2453 is converting.  
Note 2. All voltage values are with respect to GND. V = 2.7V to 5.5V  
CC  
unless otherwise specified.  
Note 6. C = capacitance of one bus line in pF.  
B
+
–
+
–
+
–
V
V
= V  
– V  
, V  
= ±V  
+ V  
)/2, FS = V  
– V  
;
REF  
Note 7. All values refer to V  
) and V  
levels.  
REF  
REF  
+
REF  
REFCM  
REF  
REF  
REF  
–
IH±MIN  
IL±MAX)  
–
+
= V – V , –V ≤ V ≤ V ; V  
= ±V + V )/2.  
Note 8. A positive current is flowing into the DUT pin.  
IN  
IN  
IN  
REF  
IN  
REF INCM  
IN  
IN  
Note 3. Guaranteed by design, not subject to test.  
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, unless otherwise noted)  
Integral Nonlinearity, ±CC = 3±  
Maximum INL vs Temperature  
Integral Nonlinearity, ±CC = 5±  
2.0  
1.5  
2.0  
1.5  
1.0  
0.5  
2.0  
1.5  
1.0  
0.5  
+
V
V
V
= 5V  
V
V
V
= 3V  
V
CC  
= V  
= 5V, 4.1V, 3V  
CC  
CC  
REF  
+
+
= 5V  
= 0V  
= 3V  
= 0V  
REF  
REF  
REF  
REF  
–
–
1.0  
T
= –45°C, 25°C, 90°C  
0.5  
A
T
= –45°C, 25°C, 90°C  
A
0
0
–0.5  
–1.0  
–1.5  
–2.0  
–0.5  
–1.0  
–1.5  
–2.0  
0
–5 –4 –3 –2 –1  
0
1
2
3
4
5
–50 –25  
0
25  
50  
75  
100  
–2  
–1  
1
–3  
2
3
0
TEMPERATURE (°C)  
DIFFERENTIAL INPUT VOLTAGE (V)  
DIFFERENTIAL INPUT VOLTAGE (V)  
2453 G02  
2453 G01  
2453 G03  
2453fc  
4
1234567...18

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