LTC1257I(RevA) データシートの表示（PDF） - Linear Technology
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LTC1257I Datasheet PDF : 12 Pages
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LTC1257
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Supply Voltage
vs Load Current #1
5.0
4.8
VREF = INTERNAL
VOUT = FULL SCALE
4.6 TA = 25°C
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
0.01
0.1
1
10
OUTPUT LOAD CURRENT (mA)
1257 G01
Supply Current vs
Logic Input Voltage
0.59
0.54
VCC = 5V
TA = 25°C
0.49
0.44
0.39
0.34
0
1
2
3
4
5
LOGIC VOLTAGE (V)
1257 G04
Full-Scale Voltage vs
Temperature
2.0495
2.0490
VCC = 5V
INTERNAL REFERENCE
2.0485
2.0480
2.0475
2.0470
2.0465
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1257 G07
Minimum Supply Voltage
vs Load Current #2
15.0
14.5
VREF = 10V
VOUT = FULL SCALE
TA = 25°C
14.0
13.5
13.0
12.5
12.0
11.5
11.0
0.01
0.1
1
10
OUTPUT LOAD CURRENT (mA)
1257 G02
Output Swing vs Load Resistance
5.0
4.5
VCC = 5V
4.0
3.5
FULL SCALE
RL TIED TO GND
3.0
2.5
ZERO SCALE
RL TIED TO VCC
2.0
1.5
1.0
0.5
0
10
100
1k
10k
LOAD RESISTANCE (Ω)
1257 G05
Zero-Scale Voltage vs
Temperature
0.9
0.8
VCC = 5V
INTERNAL REFERENCE
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1257 G08
Supply Current vs Temperature
0.38
0.37
VCC = 5.25V
0.36
VCC = 5V
0.35
0.34
VCC = 4.75V
0.33
0.32
0.31
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1257 G03
Pull-Down Voltage vs Output Sink
Current Capability
1000
100
10
HOT
COLD
1
ROOM
0.1
1
10
100
OUTPUT SINK CURRENT (µA)
1000
1257 G06
Integral Nonlinearity (INL)
2.0
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2 VCC = 5V
INTERNAL REFERENCE
–1.6 TA = 25°C
–2.0
0 512 1024 1536 2048 2560 3072 3584 4096
CODE
1257 G09
4
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