LT1490CS8 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1490CS8' PDF : 12 Pages View PDF
LT1490/LT1491
TYPICAL PERFORMANCE CHARACTERISTICS
Gain and Phase Shift
vs Frequency
70
100
VS = ±2.5V
60
80
50
60
PHASE
40
40
30
20
20
0
GAIN
10
– 20
0
– 40
–10
– 60
– 20
– 80
– 30
1
10
100
FREQUENCY (kHz)
–100
1000
1490/91 G10
Gain Bandwidth Product and
Phase Margin vs Supply Voltage
250
60
240
PHASE MARGIN
230
50
220
210
40
200
GAIN BANDWIDTH
190
30
180
170
20
160 RL = 10k
f = 1kHz
150
10
0 5 10 15 20 25 30 35 40 45
TOTAL SUPPLY VOLTAGE (V)
1490/91 G13
Gain Bandwith Product and Phase
Margin vs Load Resistance
350
300
250 PHASE MARGIN
80
VS = ± 2.5V
AV = –1
RF = RG = 100k 70
f = 1kHz
60
200
50
GAIN BANDWIDTH
150
40
100
30
50
1
10
LOAD RESISTANCE (kΩ)
20
100
1490/91 G16
Gain Bandwith Product
vs Temperature
260
f = 1kHz
240
220
200
VS = ±15V
180
VS = ±3V
160
140
120
100
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1490/91 G11
Slew Rate vs Temperature
0.12
RISING, VS = ±15V
0.10
RISING, VS = ±1.5V
0.08
FALLING, VS = ±15V
FALLING, VS = ±1.5V
0.06
0.04
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1490/91 G12
CMRR vs Frequency
120
100
VS = ±15V
80
VS = ±1.5V
60
40
20
1
10
FREQUENCY (kHz)
100
1490 G14
PSRR vs Frequency
80
VS = ±2.5V
70
60
POSITIVE SUPPLY
50
40
30
20
NEGATIVE SUPPLY
10
0
– 10
– 20
1
10
FREQUENCY (kHz)
100
1490/91 G15
Channel Separation vs Frequency
130
VS = ±15V
120
110
100
90
80
70
60
50
40
0.1
1
10
FREQUENCY (kHz)
100
1490/91 G17
Output Impedance vs Frequency
10k
VS = ± 2.5V
1k
AV = 100
100
AV = 10
10
AV = 1
1
0.1
0.1
1
10
FREQUENCY (kHz)
100
1490/91 G18
6
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