LTC2487
elecTrical characTerisTics (norMal speeD)
The
●
denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at T = 25°C. (Notes 3, 4)
A
PARAMETER
CONDITIONS
0.1V ≤ V ≤ V , –FS ≤ V ≤ +FS (Note 5)
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
Integral Nonlinearity
16
Bits
REF
CC
IN
●
●
5V ≤ V ≤ 5.5V, V = 5V, V
= 2.5V (Note 6)
2
1
20
5
ppm of V
CC
REF
IN(CM)
REF
REF
2.7V ≤ V ≤ 5.5V, V = 2.5V, V
= 1.25V (Note 6)
ppm of V
CC
REF
IN(CM)
–
+
●
●
●
Offset Error
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Note 13)
0.5
10
µV
REF
CC
CC
CC
+
–
Offset Error Drift
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V
nV/°C
ppm of V
REF
REF
CC
+
–
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
Total Unadjusted Error
2.5V ≤ V ≤ V , IN = 0.75V , IN = 0.25V
32
32
REF
CC
REF
REF
REF
REF
REF
+
–
2.5V ≤ V ≤ V , IN = 0.75V , IN = 0.25V
0.1
0.1
ppm of V /°C
REF
REF
CC
REF
+
–
2.5V ≤ V ≤ V , IN = 0.25V , IN = 0.75V
ppm of V
REF
REF
CC
REF
+
–
2.5V ≤ V ≤ V , IN = 0.25V , IN = 0.75V
ppm of V /°C
REF
REF
CC
REF
5V ≤ V ≤ 5.5V, V = 2.5V, V
= 1.25V
15
15
15
ppm of V
ppm of V
ppm of V
CC
REF
IN(CM)
REF
REF
REF
5V ≤ V ≤ 5.5V, V = 5V, V = 2.5V
CC
REF
IN(CM)
2.7V ≤ V ≤ 5.5V, V = 2.5V, V = 1.25V
CC
REF
IN(CM)
Output Noise
2.7V < V < 5.5V, 2.5V ≤ V ≤ V
,
CC
0.6
µV
RMS
CC
REF
+
–
GND ≤ IN = IN ≤ V (Note 12)
CC
Internal PTAT Signal
T = 27°C (Note 13)
A
27.8
1
28.0
93.5
28.2
256
mV
Internal PTAT Temperature Coefficient
Programmable Gain
µV/°C
●
elecTrical characTerisTics (2x speeD)
The
●
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T = 25°C. (Notes 3, 4)
A
PARAMETER
CONDITIONS
0.1V ≤ V ≤ V , –FS ≤ V ≤ +FS (Note 5)
MIN
TYP
MAX
UNITS
Resolution (No Missing Codes)
Integral Nonlinearity
16
Bits
REF
CC
IN
5V ≤ V ≤ 5.5V, V = 5V, V
= 2.5V (Note 6)
●
●
2
1
20
2
ppm of V
CC
REF
IN(CM)
REF
REF
2.7V ≤ V ≤ 5.5V, V = 2.5V, V
= 1.25V (Note 6)
ppm of V
CC
REF
IN(CM)
–
+
Offset Error
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Note 13)
0.2
mV
REF
CC
CC
CC
+
–
Offset Error Drift
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V
100
nV/°C
REF
CC
+
–
●
●
Positive Full-Scale Error
Positive Full-Scale Error Drift
Negative Full-Scale Error
Negative Full-Scale Error Drift
Output Noise
2.5V ≤ V ≤ V , IN = 0.75V , IN = 0.25V
32
32
ppm of V
REF
REF
CC
REF
REF
REF
REF
REF
+
–
2.5V ≤ V ≤ V , IN = 0.75V , IN = 0.25V
0.1
ppm of V /°C
REF
REF
CC
REF
+
–
2.5V ≤ V ≤ V , IN = 0.25V , IN = 0.75V
ppm of V
REF
REF
CC
REF
+
–
2.5V ≤ V ≤ V , IN = 0.25V , IN = 0.75V
0.1
ppm of V /°C
REF
REF
CC
REF
+
–
5V ≤ V ≤ 5.5V, V = 5V, GND ≤ IN = IN ≤ V
0.85
µV
RMS
CC
REF
CC
●
Programmable Gain
1
128
converTer characTerisTics The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T = 25°C. (Note 3)
A
PARAMETER
CONDITIONS
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Note 5)
MIN
140
140
140
110
110
87
TYP
MAX
UNITS
dB
+
–
●
●
●
●
●
●
●
Input Common Mode Rejection DC
Input Common Mode Rejection 50Hz 2ꢀ
Input Common Mode Rejection 60Hz 2ꢀ
Input Normal Mode Rejection 50Hz 2ꢀ
Input Normal Mode Rejection 60Hz 2ꢀ
Input Normal Mode Rejection 50Hz/60Hz 2ꢀ
Reference Common Mode Rejection DC
Power Supply Rejection DC
REF
CC
CC
+
–
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Notes 5, 7)
dB
REF
CC
CC
+
–
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Notes 5, 8)
dB
REF
CC
CC
+
–
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Notes 5, 7)
120
120
dB
REF
CC
CC
+
–
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Notes 5, 8)
dB
REF
CC
CC
+
–
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Notes 5, 9)
dB
REF
CC
CC
+
–
2.5V ≤ V ≤ V , GND ≤ IN = IN ≤ V (Note 5)
120
140
120
120
dB
REF
CC
CC
+
–
V
REF
V
REF
= 2.5V, IN = IN = GND
dB
+
–
Power Supply Rejection, 50Hz 2ꢀ, 60Hz 2ꢀ
= 2.5V, IN = IN = GND (Notes 7, 8, 9)
dB
2487fa
ꢂ
Linear [ Linear ]
