LT1490A
TYPICAL PERFOR A CE CHARACTERISTICS
Gain and Phase Shift
vs Frequency
70
60
50
40
PHASE
V
S
=
±2.5V
100
GAIN BANDWIDTH PRODUCT (kHz)
GAIN (dB)
30
20
10
0
–10
–20
–30
1
10
100
FREQUENCY (kHz)
GAIN
20
0
–20
– 40
– 60
– 80
–100
1000
1490A G10
200
180
V
S
=
±1.5V
160
140
120
100
–50 –25
V
S
=
±15V
SLEW RATE (V/µs)
Gain Bandwidth Product and
Phase Margin vs Supply Voltage
250
GAIN BANDWIDTH PRODUCT (kHz)
COMMON MODE REJECTION RATIO (dB)
240
230
220
210
200
190
180
170
160
150
0
5
10 15 20 25 30 35 40
TOTAL SUPPLY VOLTAGE (V)
45
R
L
= 10k
f = 1kHz
10
20
GAIN BANDWIDTH
30
40
PHASE MARGIN
50
PHASE MARGIN (DEG)
POWER SUPPLY REJECTION RATIO (dB)
Gain Bandwidth Product and
Phase Margin vs Load Resistance
350
GAIN BANDWIDTH PRODUCT (kHz)
CHANNEL SEPARATION (dB)
300
250
200
PHASE MARGIN
OUTPUT IMPEDANCE (Ω)
V
S
=
±
2.5V
A
V
= –1
R
F
= R
G
= 100k
f = 1kHz
GAIN BANDWIDTH
150
100
50
1
10
LOAD RESISTANCE (kΩ)
40
30
20
100
1490A G16
6
U W
1490A G13
Gain Bandwidth Product
vs Temperature
260
f = 1kHz
240
220
0.10
0.12
80
60
40
Slew Rate vs Temperature
RISING, V
S
=
±15V
PHASE SHIFT (DEG)
0.08
RISING, V
S
=
±1.5V
FALLING, V
S
=
±15V
FALLING, V
S
=
±1.5V
0.06
50
25
0
75
TEMPERATURE (°C)
100
125
0.04
–50 –25
50
25
0
75
TEMPERATURE (°C)
100
125
1490A G11
1490A G12
CMRR vs Frequency
60
120
80
70
60
PSRR vs Frequency
V
S
=
±2.5V
100
V
S
=
±15V
V
S
=
±1.5V
POSITIVE SUPPLY
50
40
30
20
10
0
–10
–20
1
10
FREQUENCY (kHz)
100
1490A G15
80
60
NEGATIVE SUPPLY
40
20
1
10
FREQUENCY (kHz)
100
1490A G14
Channel Separation vs Frequency
80
70
Output Impedance vs Frequency
10k
V
S
=
±
2.5V
130
120
110
100
90
80
70
60
50
40
0.1
1
10
FREQUENCY (kHz)
V
S
=
±15V
1k
A
V
= 100
100
A
V
= 10
10
A
V
= 1
PHASE MARGIN (DEG)
60
50
1
100
1490A G17
0.1
0.1
1
10
FREQUENCY (kHz)
100
1490A G18
LINER [ LINEAR TECHNOLOGY ]
