Datasheet

LTC2414/LTC2418
3
241418fa
PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Common Mode Rejection DC 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, ● 130 140 dB
GND ≤ IN
–
= IN
+
≤ 5V (Note 5)
Input Common Mode Rejection 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, ● 140 dB
60Hz ±2% GND ≤ IN
–
= IN
+
≤ 5V (Notes 5, 7)
Input Common Mode Rejection 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, ● 140 dB
50Hz ±2% GND ≤ IN
–
= IN
+
≤ 5V (Notes 5, 8)
Input Normal Mode Rejection (Notes 5, 7) ● 110 140 dB
60Hz ±2%
Input Normal Mode Rejection (Notes 5, 8) ● 110 140 dB
50Hz ±2%
Reference Common Mode 2.5V ≤ REF
+
≤ V
CC
, GND ≤ REF
–
≤ 2.5V, ● 130 140 dB
Rejection DC V
REF
= 2.5V, IN
–
= IN
+
= GND (Note 5)
Power Supply Rejection, DC REF
+
= 2.5V, REF
–
= GND, IN
–
= IN
+
= GND 110 dB
Power Supply Rejection, 60Hz ±2% REF
+
= 2.5V, REF
–
= GND, IN
–
= IN
+
= GND (Note 7) 120 dB
Power Supply Rejection, 50Hz ±2% REF
+
= 2.5V, REF
–
= GND, IN
–
= IN
+
= GND (Note 8) 120 dB
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
CO VERTER CHARACTERISTICS
U
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) 0.1V ≤ V
REF
≤ V
CC
, –0.5 • V
REF
≤ V
IN
≤ 0.5 • V
REF
(Note 5) ● 24 Bits
Integral Nonlinearity 4.5V ≤ V
CC
≤ 5.5V, REF
+
= 2.5V, REF
–
= GND, V
INCM
= 1.25V (Note 6) 1 ppm of V
REF
5V ≤ V
CC
≤ 5.5V, REF
+
= 5V, REF
–
= GND, V
INCM
= 2.5V (Note 6) ● 2 14 ppm of V
REF
REF
+
= 2.5V, REF
–
= GND, V
INCM
= 1.25V (Note 6) 5 ppm of V
REF
Offset Error 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, ● 2.5 10 µV
GND ≤ IN
+
= IN
–
≤ V
CC
(Note 14)
Offset Error Drift 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, 20 nV/°C
GND ≤ IN
+
= IN
–
≤ V
CC
Positive Full-Scale Error 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, ● 2.5 12 ppm of V
REF
IN
+
= 0.75 • REF
+
, IN
–
= 0.25 • REF
+
Positive Full-Scale Error Drift 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, 0.03 ppm of V
REF
/°C
IN
+
= 0.75 • REF
+
, IN
–
= 0.25 • REF
+
Negative Full-Scale Error 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, ● 2.5 12 ppm of V
REF
IN
+
= 0.25 • REF
+
, IN
–
= 0.75 • REF
+
Negative Full-Scale Error Drift 2.5V ≤ REF
+
≤ V
CC
, REF
–
= GND, 0.03 ppm of V
REF
/°C
IN
+
= 0.25 • REF
+
, IN
–
= 0.75 • REF
+
Total Unadjusted Error 4.5V ≤ V
CC
≤ 5.5V, REF
+
= 2.5V, REF
–
= GND, V
INCM
= 1.25V 3 ppm of V
REF
5V ≤ V
CC
≤ 5.5V, REF
+
= 5V, REF
–
= GND, V
INCM
= 2.5V 3 ppm of V
REF
REF
+
= 2.5V, REF
–
= GND, V
INCM
= 1.25V 6 ppm of V
REF
Output Noise 5V ≤ V
CC
≤ 5.5V, REF
+
= 5V, V
REF
– = GND, 1 µV
RMS
GND ≤ IN
–
= IN
+
≤ 5V (Note 13)
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 3, 4)
ELECTRICAL CHARACTERISTICS