Datasheet
LTC1992 Family
33
1992fb
APPLICATIONS INFORMATION
Table 1. Input Signal Limitations for Some Common Applications
Differential Input Signal, V
OCM
at Typical ADC Levels. (V
INCM
must be within the Min and Max table values and
V
INDIFF
must be less than the table value)
+V
S
(V)
–V
S
(V)
GAIN
(V/V)
V
OCM
(V)
V
INCM(MAX)
(V)
V
INCM(MIN)
(V)
V
INDIFF(MAX)
(V
P-PDIFF
)
V
OUTDIFF(MAX)
(V
P-PDIFF
)
2.7 0 1 1 1.800 –1.200 4.00 4.00
2.7 0 2 1 1.600 –0.650 2.00 4.00
2.7 0 5 1 1.480 –0.320 0.80 4.00
2.7 0 10 1 1.440 –0.210 0.40 4.00
5 0 1 2 5.400 –2.200 8.00 8.00
5 0 2 2 4.550 –1.150 4.00 8.00
5 0 5 2 4.040 –0.520 1.60 8.00
5 0 10 2 3.870 –0.310 0.80 8.00
5 –5 1 2 5.400 –12.200 12.00 12.00
5 –5 2 2 4.550 –8.650 6.00 12.00
5 –5 5 2 4.040 –6.520 2.40 12.00
5 –5 10 2 3.870 –5.810 1.20 12.00
Differential Input Signal, V
OCM
at Mid-Supply. (V
INCM
must be within the Min and Max table values and
V
INDIFF
must be less than the table value)
+V
S
(V)
–V
S
(V)
GAIN
(V/V)
V
OCM
(V)
V
INCM(MAX)
(V)
V
INCM(MIN)
(V)
V
INDIFF(MAX)
(V
P-PDIFF
)
V
OUTDIFF(MAX)
(V
P-PDIFF
)
2.7 0 1 1.35 1.450 –1.550 5.40 5.40
2.7 0 2 1.35 1.425 –0.825 2.70 5.40
2.7 0 5 1.35 1.410 –0.390 1.08 5.40
2.7 0 10 1.35 1.405 –0.245 0.54 5.40
5 0 1 2.5 4.900 –2.700 10.00 10.00
5 0 2 2.5 4.300 –1.400 5.00 10.00
5 0 5 2.5 3.940 –0.620 2.00 10.00
5 0 10 2.5 3.820 –0.360 1.00 10.00
5 –5 1 0 7.400 –10.200 20.00 20.00
5 –5 2 0 5.550 –7.650 10.00 20.00
5 –5 5 0 4.440 –6.120 4.00 20.00
5 –5 10 0 4.070 –5.610 2.00 20.00
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