LTC2495
3
2495f
ELECTRICAL CHARACTERISTICS (NORMAL SPEED)
apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
Resolution (No Missing Codes)
0.1V ≤ V
REF
≤ V
CC
, –FS ≤ V
IN
≤ +FS (Note 5)
Integral Nonlinearity
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V (Note 6)
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V (Note 6)
Offset Error
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 13)
Offset Error Drift
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
Positive Full-Scale Error
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
Positive Full-Scale Error Drift
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
Negative Full-Scale Error
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
Negative Full-Scale Error Drift
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
Total Unadjusted Error
5V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V
Output Noise
2.7V < V
CC
< 5.5V, 2.5V ≤ V
REF
≤ V
CC
,
GND ≤ IN
+
= IN
–
≤ V
CC
(Note 12)
Internal PTAT Signal
T
A
= 27°C (Note 13)
Internal PTAT Temperature Coefficient
Programmable Gain
ELECTRICAL CHARACTERISTICS (2X SPEED)
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
PARAMETER
CONDITIONS
Resolution (No Missing Codes)
0.1V ≤ V
REF
≤ V
CC
, –FS ≤ V
IN
≤ +FS (Note 5)
Integral Nonlinearity
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, V
IN(CM)
= 2.5V (Note 6)
2.7V ≤ V
CC
≤ 5.5V, V
REF
= 2.5V, V
IN(CM)
= 1.25V (Note 6)
Offset Error
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 13)
Offset Error Drift
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
Positive Full-Scale Error
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
Positive Full-Scale Error Drift
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.75V
REF
, IN
–
= 0.25V
REF
Negative Full-Scale Error
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
Negative Full-Scale Error Drift
2.5V ≤ V
REF
≤ V
CC
, IN
+
= 0.25V
REF
, IN
–
= 0.75V
REF
Output Noise
5V ≤ V
CC
≤ 5.5V, V
REF
= 5V, GND ≤ IN
+
= IN
–
≤ V
CC
Programmable Gain
CONVERTER CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
PARAMETER
CONDITIONS
Input Common Mode Rejection DC
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
Input Common Mode Rejection 50Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 7)
Input Common Mode Rejection 60Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 8)
Input Normal Mode Rejection 50Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 7)
Input Normal Mode Rejection 60Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 8)
Input Normal Mode Rejection 50Hz/60Hz ±2%
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Notes 5, 9)
Reference Common Mode Rejection DC
2.5V ≤ V
REF
≤ V
CC
, GND ≤ IN
+
= IN
–
≤ V
CC
(Note 5)
Power Supply Rejection DC
V
REF
= 2.5V, IN
+
= IN
–
= GND
Power Supply Rejection, 50Hz ±2%, 60Hz ±2%
V
REF
= 2.5V, IN
+
= IN
–
= GND (Notes 7, 8, 9)
The
●
denotes the specifications which
MIN
16
TYP
MAX
UNITS
Bits
●
●
2
1
20
ppm of V
REF
ppm of V
REF
●
0.5
10
5
μV
nV/°C
●
32
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
ppm of V
REF
0.1
●
32
0.1
15
15
15
0.6
μV
RMS
27.8
28.0
93.5
28.2
mV
μV/°C
●
1
256
The
●
denotes the specifications which apply over the
MIN
16
TYP
MAX
UNITS
Bits
●
2
1
20
ppm of V
REF
ppm of V
REF
●
0.2
100
2
mV
nV/°C
●
32
ppm of V
REF
ppm of V
REF
/°C
ppm of V
REF
ppm of V
REF
/°C
0.1
●
32
0.1
0.85
μV
RMS
●
1
128
The
●
denotes the specifications which apply over the full operating
MIN
140
140
140
110
110
87
120
TYP
MAX
UNITS
●
dB
dB
dB
dB
dB
dB
dB
dB
dB
●
●
●
120
120
●
●
●
140
120
120