參數(shù)資料
型號： LTC2489
廠商： Linear Technology Corporation
英文描述： 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
中文描述： 16位2-/4-Channel ADC，具有易于驅(qū)動的輸入電流取消和I2C接口
文件頁數(shù)： 3/24頁
文件大?。?/td> 341K
代理商： LTC2489
LTC2489
3
2489f
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
Resolution (No Missing Codes)
0.1V ≤ V
REF
≤ V
CC
, –FS ≤ V
IN
≤ +FS (Note 5)
Integral Nonlinearity
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V (Note 6)
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V (Note 6)
Offset Error
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 13)
Offset Error Drift
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
Positive Full-Scale Error
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
Positive Full-Scale Error Drift
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
Negative Full-Scale Error
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
Negative Full-Scale Error Drift
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
Total Unadjusted Error
5V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V
Output Noise
2.7V < V
CC
< 5.5V, 2.5V ≤ V
REF
≤ V
CC
,
GND ≤ IN
+
= IN
–
≤ V
CC
(Note 12)
The
●
denotes the specifications which apply over the full operating
MIN
16
TYP
MAX
UNITS
Bits
●
2
1
20
ppm of V
REF
ppm of V
REF
●
0.5
10
2.5
μV
nV/°C
●
32
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
ppm of V
REF
0.1
●
32
0.1
15
15
15
0.6
μV
RMS
CONVERTER CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
PARAMETER
Input Common Mode Rejection DC
Input Normal Mode Rejection 50Hz/60Hz ±2%
Reference Common Mode Rejection DC
Power Supply Rejection DC
Power Supply Rejection, 50Hz ±2%
Power Supply Rejection, 60Hz ±2%
The
●
denotes the specifications which apply over the full operating
CONDITIONS
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 9)
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
V
REF
= 2.5V, IN
+
= IN
–
= GND
V
REF
= 2.5V, IN
+
= IN
–
= GND (Notes 7, 9)
V
REF
= 2.5V, IN
+
= IN
–
= GND (Notes 8, 9)
MIN
140
87
120
TYP
MAX
UNITS
●
dB
dB
dB
dB
dB
dB
●
●
140
120
120
120
ANALOG INPUT AND REFERENCE
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL
PARAMETER
IN
+
Absolute/Common Mode IN
+
Voltage
(IN
+
Corresponds to the Selected Positive Input Channel)
IN
–
Absolute/Common Mode IN
–
Voltage
(IN
–
Corresponds to the Selected Negative Input Channel)
V
IN
FS
Full Scale of the Differential Input (IN
+
– IN
–
)
LSB
Least Significant Bit of the Output Code
REF
+
Absolute/Common Mode REF
+
Voltage
REF
–
Absolute/Common Mode REF
–
Voltage
V
REF
CS(IN
+
)
IN
+
Sampling Capacitance
CS(IN
–
)
IN
–
Sampling Capacitance
CS(V
REF
)
V
REF
Sampling Capacitance
I
DC_LEAK(IN+)
The
●
denotes the specifications which apply over the full operating
CONDITIONS
MIN
TYP
MAX
UNITS
GND – 0.3V
V
CC
+ 0.3V
V
GND – 0.3V
V
CC
+ 0.3V
V
Input Differential Voltage Range (IN
+
– IN
–
)
●
–FS
+FS
V
V
●
0.5V
REF
FS/2
16
0.1
GND
0.1
●
●
V
CC
V
V
V
●
REF
+
– 0.1V
V
CC
Reference Voltage Range (REF
+
– REF
–
)
●
11
11
11
1
pF
pF
pF
nA
IN
+
DC Leakage Current
Sleep Mode, IN
+
= GND
●
–10
10
相關(guān)PDF資料
PDF描述
LTC2489CDEPBF 16-Bit 2-/4-Channel ADC with Easy Drive Input Current Cancellation and I2C Interface
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