Datasheet

6
LTC1657/LTC1657L
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC1657L Full-Scale Voltage
vs Temperature
TEMPERATURE (°C)
–55
2.490
FULL-SCALE VOLTAGE (V)
2.495
2.500
2.505
2.510
–25 5 35 65
1657 G10
95 125
TEMPERATURE (°C)
–55
–10 35 80 125
OFFSET (mV)
1657 G11
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
TEMPERATURE (°C)
–55
–10 35 80 125
OFFSET (mV)
1657 G12
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
– 0.8
–1.0
LTC1657 Offset Error
vs Temperature
LTC1657 Supply Current
vs Logic Input Voltage
LTC1657L Offset Error
vs Temperature
LOGIC INPUT VOLTAGE (V)
0
1 2 3 4 5
SUPPLY CURRENT (mA)
1657 G13
8
7
6
5
4
3
2
1
0
V
CC
= 5V
LTC1657 Supply Current
vs Temperature
LTC1657L Supply Current
vs Logic Input Voltage
LOGIC INPUT VOLTAGE (V)
0
0.2
SUPPLY CURRENT (mA)
0.4
0.8
1.0
1.2
2
2.0
1657 G14
0.6
13
1.4
1.6
1.8
V
CC
= 3V
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
SUPPLY CURRENT (µA)
1657 G15
700
680
660
640
620
600
580
560
540
520
500
V
CC
= 5.5V
V
CC
= 5V
V
CC
= 4.5V
LTC1657
Large-Signal Transient Response
LTC1657L Supply Current
vs Temperature
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
SUPPLY CURRENT (µA)
1657 G16
560
550
540
530
520
510
500
490
480
470
460
V
CC
= 3.3V
V
CC
= 3V
V
CC
= 2.7V
TIME (20µs/DIV)
OUTPUT VOLTAGE (V)
1657 G17
5
4
3
2
1
0
V
OUT
UNLOADED
T
A
= 25°C
LTC1657L
Large-Signal Transient Response
TIME (20µs/DIV)
0
OUTPUT VOLTAGE (V)
2
4
1
3
5
1657 G18
V
OUT
UNLOADED
T
A
= 25°C