Datasheet

LT1638/LT1639
10
16389fg
OUTPUT VOLTAGE (5V/DIV)
CHANGE IN INPUT OFFSET VOLTAGE (50μV/DIV)
1638/39 G27
–10V–20V
0V
10V 20V
R
L
= 2k
V
S
= ±15V
R
L
= 10k
R
L
= 50k
Settling Time to 0.1% vs
Output Step
Capacitive Load Handling,
Overshoot vs Capacitive Load
SETTLING TIME (μs)
0
–10
OUTPUT STEP (V)
–8
–4
–2
0
10
4
10
20
25
1638/39 G21
–6
6
8
2
515
30
35
A
V
= –1
A
V
= –1
A
V
= 1
A
V
= 1
V
S
= ±15V
Undistorted Output Swing
vs Frequency
Total Harmonic Distortion + Noise
vs Frequency
Total Harmonic Distortion + Noise
vs Load Resistance
Total Harmonic Distortion + Noise
vs Output Voltage
Open-Loop Gain Large-Signal Response Small-Signal Response
1638/39 G28
1638/39 G29
V
S
= ±15V
A
V
= 1
V
S
= ±15V
A
V
= 1
C
L
= 15pF
CAPACITIVE LOAD (pF)
OVERSHOOT (%)
100
90
80
70
60
50
40
30
20
10
0
10 100 1000 10000
1638/39 G22
A
V
= 1
A
V
= 5
A
V
= 10
V
S
= 5V, 0V
V
CM
= 2.5V
I
SOURCE
= 150μA
FREQUENCY (kHz)
0.1
OUTPUT SWING (V
P-P
)
1 10 100
1638/39 G23
35
30
25
20
15
10
5
0
DISTORTION ≤ 1%
R
L
= 20k
V
S
= ±2.5V
V
S
= ±15V
FREQUENCY (kHz)
THD + NOISE (%)
0.01 1 10 100
1638/39 G24
0.1
10
1
0.1
0.01
0.001
V
S
= 3V, 0V
V
OUT
= 2V
P-P
V
CM
= 1.2V
R
L
= 20k
A
V
= –1
A
V
= 1
LOAD RESISTANCE TO GROUND (kΩ)
0.01
THD + NOISE (%)
0.1
1
10
0.1 10 100
1638/39 G25
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
)
THD + NOISE (%)
10
1
0.1
0.01
0.001
023
1638/39 G26
1
R
L
= 10k, f = 1kHz
V
CM
= HALF SUPPLY
A
V
= –1, V
S
= ±1.5V
A
V
= –1, V
S
= 3V, 0V
A
V
= 1, V
S
= ±1.5V
A
V
= 1, V
S
= 3V, 0V
TYPICAL PERFORMANCE CHARACTERISTICS