LT1790 Просмотр технического описания (PDF) - Linear Technology
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LT1790 Datasheet PDF : 24 Pages
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2.048V TYPICAL PERFOR A CE CHARACTERISTICS
Each of the voltage options have similar performance curves. For the 3V, 3.3V and the 4.096V options,
the curves can be estimated based on the 2.5V and 5V curves.
LT1790
– 2.048V Characteristics
0.30
0.25
0.20
0.15
R1 10k
4
3V
LT1790-2.048
6
12
VOUT
RL
5k
1µF
–VEE
0.10
TA = 125°C
TA = 25°C
0.05
TA = –55°C
0
–4 –3.5 –3 –2.5 –2 –1.5 –1 –0.5 0
OUTPUT TO GROUND VOLTAGE (V)
17092.048 G10
Long-Term Drift
100
TA = 30°C
80 2 TYPICAL PARTS SOLDERED TO PCB
60
40
20
0
–20
–40
–60
–80
–100
0
200 400 600 800 1000
HOURS
17901.048 G11
Output Noise 0.1Hz to 10Hz
0 1 2 3 4 5 6 7 8 9 10
TIME (SEC)
17902.048 G12
Output Voltage Noise Spectrum
10
CL = 1µF
9
8
7
6
5
IO = 100µA
4
IO = 0µA
3
IO = 250µA
2
1
IO = 1mA
0
10
100
1k
10k
FREQUENCY (Hz)
17902.048 G13
Integrated Noise 10Hz to 1kHz
100
10
1
10
100
1000
FREQUENCY (Hz)
LT1790 G02
1790fa
13
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