LT1490A(RevB) Ver la hoja de datos (PDF) - Linear Technology
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LT1490A
(Rev.:RevB)
(Rev.:RevB)
Linear Technology
LT1490A Datasheet PDF : 16 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LT1490A/LT1491A
Supply Current vs Supply Voltage
80
70
TA = 125°C
60
TA = 25°C
50
40
TA = –55°C
30
20
10
0
0 5 10 15 20 25 30 35 40 45
TOTAL SUPPLY VOLTAGE (V)
1490A G01
Output Saturation Voltage
vs Load Current (Output High)
1
VS = 5V, 0V
TA = 125°C
100m
TA = 25°C
TA = –55°C
Minimum Supply Voltage
400
300
200
100
0
– 100
TA = 25°C
TA = –55°C
– 200
–300 TA = 125°C
– 400
0
1
2
3
4
5
TOTAL SUPPLY VOLTAGE (V)
1490A G02
Output Saturation Voltage
vs Load Current (Output Low)
1
VS = 5V, 0V
100m
10m
TA = 125°C
TA = 25°C
TA = –55°C
10m
1µ
10µ 100µ 1m 10m 100m
SOURCING LOAD CURRENT (A)
1490A G04
0.1Hz to 10Hz Noise Voltage
VS = ±2.5V
0 1 2 3 4 5 6 7 8 9 10
TIME (SEC)
1490A G07
1m
0.1µ
1µ 10µ 100µ 1m 10m 100m
SINKING LOAD CURRENT (A)
1490A G05
Noise Voltage Density
vs Frequency
120
100
80
60
40
20
1
10
100
FREQUENCY (Hz)
1k
1490A G08
Input Bias Current
vs Common Mode Voltage
5000
VS = 5V, 0V
3000
1000
30
20
10
TA = –55°C
TA = 25°C
TA = 125°C
0
–10
–0.4 0 4.0 4.4 4.8 5.2 5.6 44
COMMON MODE VOLTAGE (V)
1490A G03
Output Saturation Voltage
vs Input Overdrive
100
VS = 5V, 0V
90 NO LOAD
80
70
60
50
40
30
OUTPUT HIGH
20
10
OUTPUT LOW
0
0
10
20
30
40
50
INPUT OVERDRIVE (mV)
1490A G06
Input Noise Current vs Frequency
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
1
10
100
1k
FREQUENCY (Hz)
1490A G09
sn1490, 14901afbs
7
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