LTC2488 LINER [Linear Technology], LTC2488 Datasheet - Page 3

• Manufacturer Part Number: LTC2488
• Description: 16-Bit 2-/4-Channel ?? ADC with Easy Drive Input Current Cancellation
• Manufacturer: LINER [Linear Technology]

CONVERTER CHARACTERISTICS
ANALOG INPUT AND REFERENCE
temperature range, otherwise specifi cations are at T
PARAMETER
Input Common Mode Rejection DC
Input Common Mode Rejection 50Hz ±2%
Input Common Mode Rejection 60Hz ±2%
Input Normal Mode Rejection 50Hz ±2%
Input Normal Mode Rejection 60Hz ±2%
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%
temperature range, otherwise specifi cations are at T
SYMBOL
IN
IN
V
FS
LSB
REF
REF
V
C
C
C
I
I
I
I
t
QIRR
DC_LEAK(IN
DC_LEAK(IN
DC_LEAK(REF
DC_LEAK(REF
OPEN
IN
REF
S(IN+)
S(IN–)
S(VREF)
+
–
+
–
+
–
)
)
+
–
)
)
PARAMETER
Absolute/Common Mode IN
(IN
Absolute/Common Mode IN
(IN
Input Differential Voltage Range (IN
Full Scale of the Differential Input (IN
Least Signifi cant Bit of the Output Code
Absolute/Common Mode REF
Absolute/Common Mode REF
Reference Voltage Range (REF
IN
IN
V
IN
IN
REF
REF
MUX Break-Before-Make
MUX Off Isolation
REF
+
–
+
–
–
+
Sampling Capacitance
Sampling Capacitance
DC Leakage Current
DC Leakage Current
+
–
Corresponds to the Selected Positive Input Channel)
Corresponds to the Selected Negative Input Channel)
Sampling Capacitance
DC Leakage Current
DC Leakage Current
+
–
Voltage
Voltage
+
–
+
Voltage
Voltage
– REF
CONDITIONS
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
V
V
V
+
REF
REF
REF
+
– IN
–
– IN
)
= 2.5V, IN
= 2.5V, IN
= 2.5V, IN
–
)
–
REF
REF
REF
REF
REF
REF
REF
A
A
)
= 25°C. (Note 3)
= 25°C. (Note 3)
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
+
+
+
CC
CC
CC
CC
CC
CC
CC
= IN
= IN
= IN
The
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
–
–
–
●
The
= GND
= GND (Notes 7, 9)
= GND (Notes 8, 9)
CONDITIONS
Sleep Mode, IN
Sleep Mode, IN
Sleep Mode, REF
Sleep Mode, REF
V
IN
denotes the specifi cations which apply over the full operating
= 2V
●
+
+
+
+
+
+
+
denotes the specifi cations which apply over the full operating
= IN
= IN
= IN
= IN
= IN
= IN
= IN
P-P
–
–
–
–
–
–
–
DC to 1.8MHz
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
+
–
CC
CC
CC
CC
CC
CC
CC
= GND
= GND
+
–
= V
= GND
(Note 5)
(Note 5)
(Note 5)
(Notes 5, 7)
(Notes 5, 8)
(Notes 5, 9)
(Note 5)
CC
●
●
●
●
●
●
●
●
●
●
GND – 0.3V
GND – 0.3V
●
●
●
●
●
●
●
0.5V
FS/2
–100
–100
GND
MIN
–FS
–10
–10
0.1
0.1
REF
MIN
140
140
140
110
110
120
16
87
TYP
120
11
11
11
50
TYP
120
120
140
120
120
120
1
1
1
1
LTC2488
REF
V
V
CC
CC
MAX
+
MAX
+FS
V
V
100
100
10
10
+ 0.3V
+ 0.3V
– 0.1V
CC
CC
UNITS
UNITS
3
2488f
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
nA
nA
nA
nA
dB
pF
pF
pF
ns
V
V
V
V
V
V
V