Техническая Спецификация для Linear Technology LTC2439CGN-1, 8-Channel Differential 16-Bit ADC (req DC590) DC790A DC790A
Модели
DC790A
LTC2439-1
3
24391fa
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Total Unadjusted Error
5V
≤ V
CC
≤ 5.5V, REF
+
= 2.5V, REF
–
= GND, V
INCM
= 1.25V
0.20
LSB
5V
≤ V
CC
≤ 5.5V, REF
+
= 5V, REF
–
= GND, V
INCM
= 2.5V
0.20
LSB
REF
+
= 2.5V, REF
–
= GND, V
INCM
= 1.25V, (Note 6)
Output Noise
5V
≤ V
CC
≤ 5.5V, REF
+
= 5V, V
REF
– = GND,
1
µV
RMS
GND
≤ IN
–
= IN
+
≤ 5V (Note 12)
Input Common Mode Rejection DC
2.5V
≤ REF
+
≤ V
CC
, REF
–
= GND,
●
130
140
dB
GND
≤ IN
–
= IN
+
≤ V
CC
(Note 5)
Input Common Mode Rejection
2.5V
≤ REF
+
≤ V
CC
, REF
–
= GND,
●
140
dB
49Hz to 61.2Hz
GND
≤ IN
–
= IN
+
≤ V
CC
, (Note 5)
Input Normal Mode Rejection
(Note 5)
●
87
dB
49Hz to 61.2Hz
Reference Common Mode
2.5V
≤ REF
+
≤ V
CC
, GND
≤ REF
–
≤ 2.5V,
●
130
140
dB
Rejection DC
V
REF
= 2.5V, IN
–
= IN
+
= GND (Note 5)
Power Supply Rejection, DC
REF
+
= 2.5V, REF
–
= GND, IN
–
= IN
+
= GND
120
dB
Power Supply Rejection,
REF
+
= 2.5V, REF
–
= GND, IN
–
= IN
+
= GND
120
dB
Simultaneous 50Hz/60Hz
±2%
The
●
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°C. (Notes 3, 4)
CO VERTER CHARACTERISTICS
U
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN
+
Absolute/Common Mode IN
+
Voltage
●
GND – 0.3
V
CC
+ 0.3
V
IN
–
Absolute/Common Mode IN
–
Voltage
●
GND – 0.3
V
CC
+ 0.3
V
V
IN
Input Differential Voltage Range
●
– V
REF
/2
V
REF
/2
V
(IN
+
– IN
–
)
REF
+
Absolute/Common Mode REF
+
Voltage
●
0.1
V
CC
V
REF
–
Absolute/Common Mode REF
–
Voltage
●
GND
V
CC
– 0.1
V
V
REF
Reference Differential Voltage Range
●
0.1
V
CC
V
(REF
+
– REF
–
)
C
S
(IN
+
)
IN
+
Sampling Capacitance
18
pF
C
S
(IN
–
)
IN
–
Sampling Capacitance
18
pF
C
S
(REF
+
)
REF
+
Sampling Capacitance
18
pF
C
S
(REF
–
)
REF
–
Sampling Capacitance
18
pF
I
DC_LEAK
(IN
+
)
IN
+
DC Leakage Current
CS = V
CC
= 5.5V, IN
+
= GND
●
–100
1
100
nA
I
DC_LEAK
(IN
–
)
IN
–
DC Leakage Current
CS = V
CC
= 5.5V, IN
–
= 5V
●
–100
1
100
nA
I
DC_LEAK
(REF
+
)
REF
+
DC Leakage Current
CS = V
CC
= 5.5V, REF
+
= 5V
●
–100
1
100
nA
I
DC_LEAK
(REF
–
)
REF
–
DC Leakage Current
CS = V
CC
= 5.5V, REF
–
= GND
●
–100
1
100
nA
Off Channel to On Channel Isolation
DC
140
dB
(R
IN
= 100
Ω)
1Hz
140
dB
f
S
= 15,3600Hz
140
dB
t
OPEN
MUX Break-Before-Make Interval
2.7V
≤ V
CC
≤ 5.5V
100
ns
I
S(OFF)
Channel Off Leakage Current
Channel at V
CC
and GND
●
–100
1
100
nA
The
●
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°C. (Note 3)
A ALOG I PUT A D REFERE CE
U
U
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