Linear Technology LT1490CS8 Linear IC SO8 Dual Prec R-to-R I/O OA LT1490CS8 Data Sheet
Product codes
LT1490CS8
7
LT1490/LT1491
Open-Loop Gain
Large-Signal Response
Small-Signal Response
OUTPUT VOLTAGE (5V/DIV)
–10V
0V
10V
1490/91 G25
CHANGE IN INPUT OFFSET VOLTAGE
(100
µ
V/DIV)
V
S
=
±
15V
1490/91 G26
1490/91 G27
R
L
= 2k
R
L
= 50k
Undistorted Output Swing
vs Frequency
vs Frequency
Settling Time to 0.1%
vs Output Step
vs Output Step
Capacitive Load Handling,
Overshoot vs Capacitive Load
Overshoot vs Capacitive Load
Total Harmonic Distortion + Noise
vs Frequency
vs Frequency
Total Harmonic Distortion + Noise
vs Load Resistance
vs Load Resistance
FREQUENCY (kHz)
0.1
20
OUTPUT SWING (V
P-P
)
25
30
35
1
10
100
1490/91 G19
15
10
5
0
DISTORTION
≤
1%
V
S
=
±
15V
V
S
=
±
2.5V
SETTLING TIME (
µ
s)
0
–10
OUTPUT STEP (V)
–8
– 4
–2
0
10
4
40
80
100
1490/91 F20
– 6
6
8
2
20
60
120 140
160
V
S
=
±
15V
A
V
= –1
A
V
= –1
A
V
= 1
A
V
= 1
FREQUENCY (kHz)
0.01
THD + NOISE (%)
0.1
1
10
0.01
1
10
1490/91 G22
0.001
0.1
V
S
= 3V, 0V
V
OUT
= 2V
P-P
V
CM
= 1.2V
R
L
= 50k
A
V
= –1
A
V
= 1
LOAD RESISTANCE TO GROUND (k
Ω
)
0.01
THD + NOISE (%)
0.1
1
10
0.1
10
100
1490/91 G23
0.001
1
V
S
= 3V TOTAL
A
V
= 1
V
IN
= 2V
P-P
AT 1kHz
V
S
=
±
1.5V
V
IN
=
±
1V
V
S
= 3V, 0V
V
IN
= 0.5V TO 2.5V
V
S
= 3V, 0V
V
IN
= 0.2V TO 2.2V
OUTPUT VOLTAGE (V
P-P
)
0.01
THD + NOISE (%)
1
10
0
2
3
1490/91 G24
0.001
1
0.1
R
L
= 10k
V
CM
= HALF SUPPLY
f = 1kHz
A
V
= 1
V
S
= 3V, 0V
A
V
= –1
V
S
= 3V, 0V
A
V
= –1
V
S
=
±
1.5V
A
V
= 1
V
S
=
±
1.5V
Total Harmonic Distortion + Noise
vs Output Voltage
vs Output Voltage
R
L
= 10k
V
S
=
±
15V
A
V
= –1
V
S
=
±
15V
A
V
= 1
CAPACITIVE LOAD (pF)
20
OVERSHOOT (%)
40
60
50
80
100
10
30
70
90
10
100
1000
10000
1490/91 G21
0
V
S
= 5V, 0V
I
SOURCE
= 170
µ
A
A
V
= 1
A
V
= 2
A
V
= 5
A
V
= 10
TYPICAL PERFOR A CE CHARACTERISTICS
U
W