ltc2493 Linear Technology Corporation, ltc2493 Datasheet - Page 3

• Manufacturer Part Number: ltc2493
• Description: 24-bit 2-/4-channel Delta Sigma Adc With Easy Drive Input Current Cancellation And I2c Interface
• Manufacturer: Linear Technology Corporation

elecTrical characTerisTics (norMal speeD)
elecTrical characTerisTics (2x speeD)
converTer characTerisTics
temperature range, otherwise specifications are at T
apply over the 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
Total Unadjusted Error
Output Noise
Internal PTAT Signal
Internal PTAT Temperature Coefficient
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
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%, 60Hz ±2%
CONDITIONS
0.1V ≤ 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
5V ≤ V
2.7V ≤ V
2.7V < V
GND ≤ IN
T
CONDITIONS
0.1V ≤ 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
A
= 27°C (Note 13)
CC
CC
CC
CC
CC
REF
CC
REF
REF
REF
REF
REF
REF
CC
CC
REF
CC
REF
REF
REF
REF
REF
REF
+
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, V
≤ 5.5V, 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
= IN
≤ 5.5V, V
≤ 5.5V, V
< 5.5V, 2.5V ≤ V
≤ 5.5V, V
REF
REF
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
–
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 2.5V, IN
= 2.5V, IN
≤ V
, –FS ≤ V
, GND ≤ IN
, GND ≤ IN
, IN
, IN
, IN
, IN
, –FS ≤ V
, GND ≤ IN
, GND ≤ IN
, IN
, IN
, IN
, IN
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
A
CC
REF
REF
REF
+
+
+
+
+
+
+
+
= 25°C. (Note 3)
= 5V, V
= 2.5V, V
= 5V, V
= 5V, V
= 5V, GND ≤ IN
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
= 0.75V
= 0.75V
= 0.25V
= 0.25V
(Note 12)
= 0.75V
= 0.75V
= 0.25V
= 0.25V
= 2.5V, V
= 2.5V, V
= 2.5V, V
+
+
CC
CC
CC
CC
CC
CC
CC
IN
IN
= IN
= IN
REF
The
+
+
+
+
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
, GND ≤ IN
≤ +FS (Note 5)
IN(CM)
IN(CM)
≤ +FS (Note 5)
IN(CM)
= IN
= IN
= IN
= IN
REF
REF
REF
REF
REF
REF
REF
REF
IN(CM)
≤ V
–
–
●
IN(CM)
IN(CM)
IN(CM)
= GND
= GND (Notes 7, 8, 9)
, IN
, IN
, IN
, IN
, IN
, IN
, IN
, IN
–
–
CC
–
–
denotes the specifications which apply over the full operating
= 2.5V (Note 6)
= 2.5V
A
= 2.5V (Note 6)
≤ V
≤ V
≤ V
≤ V
,
+
–
–
–
–
= 1.25V
= 25°C. (Notes 3, 4)
–
–
–
–
= IN
= 0.25V
= 0.25V
= 0.75V
= 0.75V
= 0.25V
= 0.25V
= 0.75V
= 0.75V
CC
CC
CC
CC
+
+
+
+
+
+
+
= 1.25V (Note 6)
= 1.25V
= 1.25V (Note 6)
= IN
= IN
= IN
= IN
= IN
= IN
= IN
(Note 13)
(Note 13)
–
≤ V
–
–
–
–
–
–
–
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
≤ V
REF
REF
REF
REF
REF
REF
REF
REF
CC
CC
CC
CC
CC
CC
CC
CC
The
A
(Note 5)
(Notes 5, 7)
(Notes 5, 8)
(Notes 5, 7)
(Notes 5, 8)
(Notes 5, 9)
(Note 5)
= 25°C. (Notes 3, 4)
●
denotes the specifications which apply over the
●
●
●
●
●
●
●
●
●
The
MIN
27.8
MIN
●
●
●
●
●
●
●
24
24
●
denotes the specifications which
MIN
140
140
140
110
110
120
87
28.0
93.5
0.85
TYP
TYP
100
0.5
0.1
0.1
0.6
0.2
0.1
0.1
10
15
15
15
2
1
2
1
TYP
120
120
140
120
120
MAX
MAX
28.2
2.5
10
25
25
10
25
25
2
LTC2493
MAX
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
ppm of V
µV
µV
UNITS
UNITS
UNITS
REF
REF
REF
REF
nV/°C
µV/°C
nV/°C
2493fa

RMS
RMS
Bits
Bits
mV
mV
REF
REF
REF
/°C
REF
/°C
REF
REF
REF
REF
REF
REF
/°C
REF
/°C
µV
dB
dB
dB
dB
dB
dB
dB
dB
dB