LT1248 Ver la hoja de datos (PDF) - Linear Technology
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LT1248 Datasheet PDF : 12 Pages
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LT1248
TYPICAL PERFOR A CE CHARACTERISTICS
Voltage Amplifier Open-Loop
Gain and Phase
100
0
Current Amplifier Open-Loop
Gain and Phase
100
0
80
–20
GAIN
60
–40
80
–20
GAIN
60
–40
40
–60
40
–60
20
PHASE
0
–80
–100
20
PHASE
0
–80
–100
–20
–120
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
1148 G01
–20
–120
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
1148 G02
Reference Voltage vs
Temperature
7.536
7.524
7.512
7.500
7.488
7.476
7.464
7.452
7.440
7.428
–75 –50 –25 0 25 50 75 100 125 150
JUNCTION TEMPERATURE (°C)
1248 G03
Multiplier Current
300
VAOUT = 7V
VAOUT = 6.5V
VAOUT = 6V
150
0
0
250
IAC (µA)
VAOUT = 5.5V
VAOUT = 5V
VAOUT = 4.5V
VAOUT = 4V
VAOUT = 3.5V
VAOUT = 3V
VAOUT = 2.5V
500
1248 G04
Supply Current vs Supply Voltage
11
10
9
TJ = –55°C
8
7
TJ = 125°C TJ = 25°C
6
5
4
3
2
1
0
10
21
32
SUPPLY VOLTAGE (V)
1248 G05
GTDR Source Current
18.5
18.0 VCC = 18V
17.5
17.0
16.5
16.0
15.5
TJ = 125°C
15.0
TJ = 25°C
14.5
14.0
TJ = –55°C
13.5
13.0
0
– 60 –120 –180 –240 –300
SOURCE CURRENT (mA)
1248 G06
GTDR Sink Current
1.1
1.0
0.9
0.8
0.7
0.6
0.5
TA = –55°C
0.4
0.3
0.2
TA = 25°C
0.1 TA = 125°C
0
0
60 120 180 240 300
SINK CURRENT (mA)
1248 G07
4
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