Техническая Спецификация для Linear Technology DC941A - LTC2482 16-bit Delta-Sigma ADC (req DC590) DC941A DC941A
Модели
DC941A
LTC2482
3
2482fc
CONVERTER CHARACTERISTICS
The
l
denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Common Mode Rejection DC
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Note 5)
l
140
dB
Input Common Mode Rejection, 50Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Note 5)
l
140
dB
Input Common Mode Rejection, 60Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Note 5)
l
140
dB
Input Normal Mode Rejection, 50Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Notes 5, 7)
l
110
120
dB
Input Normal Mode Rejection, 60Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Notes 5, 8)
l
110
120
dB
Input Normal Mode Rejection, 50Hz/60Hz ±2% 2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Notes 5, 9)
l
87
dB
Reference Common Mode Rejection DC
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
–
= IN
+
≤ V
CC
(Note 5)
l
120
140
dB
Power Supply Rejection DC
V
REF
= 2.5V, IN
–
= IN
+
= GND
120
dB
Power Supply Rejection, 50Hz ±2%
V
REF
= 2.5V, IN
–
= IN
+
= GND (Note 7)
120
dB
Power Supply Rejection, 60Hz ±2%
V
REF
= 2.5V, IN
–
= IN
+
= GND (Note 8)
120
dB
ANALOG INPUT AND REFERENCE
The
l
denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN
+
Absolute/Common Mode IN
+
Voltage
GND – 0.3V
V
CC
+ 0.3V
V
IN
–
Absolute/Common Mode IN
–
Voltage
GND – 0.3V
V
CC
+ 0.3V
V
FS
Full Scale of the Differential Input (IN
+
– IN
–
)
l
0.5V
REF
V
LSB
Least Signifi cant Bit of the Output Code
l
FS/2
16
V
IN
Input Differential Voltage Range (IN
+
– IN
–
)
l
–FS
+FS
V
V
REF
Reference Voltage Range
l
0.1
V
CC
V
C
S
(IN
+
)
IN
+
Sampling Capacitance
11
pF
C
S
(IN
–
)
IN
–
Sampling Capacitance
11
pF
C
S
(V
REF
)
V
REF
Sampling Capacitance
11
pF
I
DC_LEAK
(IN
+
)
IN
+
DC Leakage Current
Sleep Mode, IN
+
= GND
l
–10
1
10
nA
I
DC_LEAK
(IN
–
)
IN
–
DC Leakage Current
Sleep Mode, IN
–
= GND
l
–10
1
10
nA
I
DC_LEAK
(V
REF
)
V
REF
Leakage Current
Sleep Mode, V
REF
= V
CC
l
–100
1
100
nA