LT1251 Ver la hoja de datos (PDF) - Linear Technology
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LT1251 Datasheet PDF : 24 Pages
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LT1251/LT1256
TYPICAL PERFORMANCE CHARACTERISTICS
Slew Rate vs Full-Scale
Reference Voltage
350
AV = 1
300
250
VS = ±15V
200
VS = ±5V
150
100
50
0
0
0.5
1.0
1.5 2.0
2.5
FULL-SCALE REFERENCE VOLTAGE (V)
1251/56 G29
Settling Time to 10mV
vs Output Step
10
8
VS = ±15V
RF = 1.5k
6
4
INVERTING,
2
NONINVERTING
0
–2
INVERTING
–4
–6
NONINVERTING
–8
–10
0
25 50 75 100 125 150
SETTLING TIME (ns)
1251/56 G32
Differential Gain vs
Controlled Gain
2
1
0
50
60
70
80
90 100
CONTROLLED GAIN, VC /VFS (%)
1251/56 G35
Slew Rate vs Temperature
VS = ±5V
350
AV = 1
NO LOAD
300
250
200
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1251/56 G30
Settling Time to 1mV
vs Output Step
10
8
NONINVERTING
6
4
INVERTING
2
0
VS = ±15V
RF = 1.5k
–2
–4
NONINVERTING
–6
INVERTING
–8
–10
0
50
100
150
200
SETTLING TIME (ns)
1251/56 G33
Power Supply Rejection Ratio
vs Frequency
80
70 POSITIVE
60
NEGATIVE
50
VS = ±5V
AV = 1
RF = 1.5k
VC = VFS = 2.5V
40
30
20
10
0
1k
10k
100k
1M
10M
FREQUENCY (Hz)
1251/56 G31
Output Impedance vs Frequency
100
VS = ±5V
RF = 1.5k
VC = VFS = 2.5V
10
1
AV = 100
0.1
AV = 1, 10
0.01
10k
100k
1M
10M
FREQUENCY (Hz)
100M
1251/56 G34
Differential Phase vs
Controlled Gain
1.0
0.5
0
50
60
70
80
90 100
CONTROLLED GAIN, VC /VFS (%)
1251/56 G36
LT1251
Switching Transient (Glitch)
50mV
VOUT
0
– 50mV
2.5
VC
0
VFS = 2.5V
RF1 = RF2 = 1.5k
VS = ±5V
1251/56 G37
8
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