LTC2485 LINER [Linear Technology], LTC2485 Datasheet - Page 3

• Manufacturer Part Number: LTC2485
• Description: 24-Bit ?? ADC with Easy Drive Input Current Cancellation and I2C Interface
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS (2x SPEED)
A ALOG I PUT A
CO VERTER CHARACTERISTICS
full operating temperature range, otherwise specifications are at T
PARAMETER
Resolution (No Missing Codes)
Integral Nonlinearity
Offset Error
Offset Error Drift
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
Output Noise
temperature range, otherwise specifications 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 specifications are at T
SYMBOL
IN
IN
FS
LSB
V
V
IN
REF
+
–
U
U
PARAMETER
Absolute/Common Mode IN
Absolute/Common Mode IN
Full Scale of the Differential Input (IN
Least Significant Bit of the Output Code
Input Differential Voltage Range (IN
Reference Voltage Range (REF
U
U
D REFERE CE
CONDITIONS
0.1 ≤ V
5V ≤ V
2.7V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
2.5V ≤ V
5V ≤ V
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
+
–
= 2.5V, IN
= 2.5V, IN
= 2.5V, IN
Voltage
Voltage
CC
CC
+
REF
CC
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
– REF
≤ 5.5V, V
≤ 5.5V, V
≤ V
≤ 5.5V, V
+
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
+
– IN
CC
–
–
–
–
– IN
)
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
, –FS ≤ V
= IN
= IN
= IN
A
A
–
, GND ≤ IN
, GND ≤ IN
, IN
, IN
, IN
, IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
REF
REF
)
–
= 25°C. (Notes 3, 4)
= 25°C. (Note 3)
U
)
REF
+
+
+
+
+
–
–
= 5V, V
= 5V, GND ≤ IN
= GND
= GND (Notes 7, 9)
= GND (Notes 8, 9)
= 0.75V
= 0.75V
= 0.75V
= 0.75V
= 2.5V, V
The
CONDITIONS
IN
≤ +FS (Note 5)
+
+
–
–
–
–
–
–
–
●
IN(CM)
The
= IN
= IN
= IN
= IN
= IN
= IN
= IN
= IN
= IN
REF
REF
REF
REF
denotes the specifications which apply over the full operating
A
IN(CM)
, IN
, IN
, IN
, IN
–
–
+
+
+
+
+
+
+
●
= 25°C. (Notes 3, 4)
= 2.5V (Note 6)
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
denotes the specifications which apply over the full operating
–
–
+
+
–
= 0.25V
= 0.25V
= 0.25V
= 0.25V
CC
CC
= IN
CC
CC
CC
CC
CC
CC
CC
= 1.25V (Note 6)
(Note 5)
(Note 5)
(Note 5)
(Notes 5, 7)
(Notes 5, 8)
(Notes 5, 9)
(Note 5)
(Note 13)
+
≤ V
REF
REF
REF
REF
The
CC
●
denotes the specifications which apply over the
●
●
●
●
●
●
●
●
●
●
●
GND – 0.3V
GND – 0.3V
●
●
●
●
●
0.5V
FS/2
MIN
–FS
0.1
MIN
MIN
140
140
140
110
110
120
24
87
REF
24
0.84
TYP
100
TYP
120
120
140
120
120
120
0.5
0.1
0.1
2
1
TYP
MAX
MAX
V
V
LTC2485
10
25
25
2
CC
CC
MAX
+FS
V
+ 0.3V
+ 0.3V
CC
ppm of V
ppm of V
ppm of V
V
V
ppm of
ppm of
µV
UNITS
UNITS
UNITS
REF
REF
nV/°C
2485fa
3
RMS
Bits
mV
REF
REF
/°C
REF
/°C
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
V