Datasheet

LTC2990
4
2990fc
TYPICAL PERFORMANCE CHARACTERISTICS
T
INTERNAL
Error
Remote Diode Error with LTC2990
at 25°C, 90°C
Remote Diode Error with LTC2990
at Same Temperature as Diode
Supply Current vs Temperature
Shutdown Current vs Temperature
Measurement Delay Variation
vs T Normalized to 3.3V, 25°C
V
CC
TUE Single-Ended VX TUE Differential Voltage TUE
T
A
= 25°C, V
CC
= 3.3V unless otherwise noted
T
AMB
(°C)
–50
I
CC
(μA)
2.0
2.5
3.0
25 50 75 100 125
2990 G01
1.5
1.0
–25 0 150
0.5
0
3.5
V
CC
= 5V
V
CC
= 3.3V
T
AMB
(°C)
–50
I
CC
(μA)
1050
1100
1150
25 50 75 100 125
2990 G02
–25 0 150
1000
950
1200
V
CC
= 5V
V
CC
= 3.3V
T
AMB
(°C)
–50
MEASUREMENT DELAY VARIATION (%)
1
2
3
25 50 75 100 125
2990 G03
–25 0 150
0
–1
4
V
CC
= 5V
V
CC
= 3.3V
T
AMB
(°C)
–50
V
CC
TUE (%)
0
0.05
25 50 75 100 125
2990 G04
–25 0 150
–0.05
–0.10
0.10
T
AMB
(°C)
–50
VX TUE (%)
0
0.05
25 50 75 100 125
2990 G05
–25 0 150
–0.05
–0.10
0.10
T
AMB
(°C)
–50
V
DIFF
TUE (%)
0
0.5
25 50 75 100 125
2990 G06
–25 0 150
–0.5
–1.0
1.0
V
CC
= 5V
V
CC
= 3.3V
BATH TEMPERATURE (°C)
–50
LTC2990 T
RX
ERROR (°C)
0.2
0.4
25 50 75 100 125
2990 G08
0
–0.2
–25 0 150
–0.4
–0.6
0.6
LTC2990
AT 25°C
LTC2990
AT 90°C
T
AMB
(°C)
–50
T
INTERNAL
ERROR (DEG)
1
2
3
25 50 75 100 125
2990 G07
0
–1
–25 0 150
–2
–3
4
T
AMB
(°C)
–50
LTC2990 T
RX
ERROR (DEG)
0.25
0.50
0.75
25 50 75 100 125
2990 G09
0
–0.25
–25 0 150
–0.50
–1.00
–0.75
1.00