Datasheet

LTC1992 Family
34
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APPLICATIONS INFORMATION
Table 1. Input Signal Limitations for Some Common Applications
+V
S
(V)
–V
S
(V)
GAIN
(V/V)
V
OCM
(V)
V
INREF
(V)
V
INSIG(MAX)
(V)
V
INSIG(MIN)
(V)
V
INSIGP-P(MAX)
(V
P-P
AROUND V
INREF
)
V
OUTDIFF(MAX)
(V
P-PDIFF
)
2.7 0 1 1.35 1.35 1.550 –1.350 0.40 0.40
2.7 0 2 1.35 1.35 1.500 0.000 0.30 0.60
2.7 0 5 1.35 1.35 1.470 0.810 0.24 1.20
2.7 0 10 1.35 1.35 1.460 1.080 0.22 2.20
5 0 1 2.5 2.5 7.300 –2.500 9.60 9.60
5 0 2 2.5 2.5 5.000 0.000 5.00 10.00
5 0 5 2.5 2.5 3.500 1.500 2.00 10.00
5 0 10 2.5 2.5 3.000 2.000 1.00 10.00
5 –5 1 0 0 10.000 –10.000 20.00 20.00
5 –5 2 0 0 5.000 –5.000 10.00 20.00
5 –5 5 0 0 2.000 –2.000 4.00 20.00
5 –5 10 0 0 1.000 –1.000 2.00 20.00
Mid-Supply Referenced Single-Ended Input Signal, V
OCM
at Mid-Supply. (The V
INSIG
Min and Max values listed account for both the input
common mode limits and the output clipping)
+V
S
(V)
–V
S
(V)
GAIN
(V/V)
V
OCM
(V)
V
INREF
(V)
V
INSIG(MAX)
(V)
V
INSIG(MIN)
(V)
V
INSIGP-P(MAX)
(V
P-P
AROUND V
INREF
)
V
OUTDIFF(MAX)
(V
P-PDIFF
)
2.7 0 1 1 1.35 2.250 –0.650 1.80 1.80
2.7 0 2 1 1.35 1.850 0.350 1.00 2.00
2.7 0 5 1 1.35 1.610 0.950 0.52 2.60
2.7 0 10 1 1.35 1.530 1.150 0.36 3.60
5 0 1 2 2.5 6.500 –1.500 8.00 8.00
5 0 2 2 2.5 4.500 0.500 4.00 8.00
5 0 5 2 2.5 3.300 1.700 1.60 8.00
5 0 10 2 2.5 2.900 2.100 0.80 8.00
5 –5 1 2 0 6.000 –6.000 12.00 12.00
5 –5 2 2 0 3.000 –3.000 6.00 12.00
5 –5 5 2 0 1.200 –1.200 2.40 12.00
5 –5 10 2 0 0.600 –0.600 1.20 12.00
Mid-Supply Referenced Single-Ended Input Signal, V
OCM
at Typical ADC Levels. (The V
INSIG
Min and Max values listed account for both
the input common mode limits and the output clipping)