LF147 - LF247 - LF347
COMMON MODE REJECTION RATIO versus
FREE AIR TEMPERATURE
VOLTAGE FOLLOWER LARGE SIGNAL PULSE
RESPONSE
INPUT AND OUTPUT VOLTAGES
(V)
89
COMMON MODE MODE REJECTION
RATIO (dB)
88
87
86
85
84
83
-75
-50
-25
0
25
50
75
100
125
R
L
= 10 kΩ
V
C C
= 15V
6
4
2
0
-2
-4
-6
0
V
CC
= 15V
R
L
= 2 kW
OUTPUT
INPUT
C
L
= 100pF
T
amb
= +25°C
0.5
1
1.5
2
2.5
3
3.5
TEMPERATURE (˚C)
TIME (
m
s)
OUTPUT VOLTAGE versus ELAPSED TIME
EQUIVALENT INPUT NOISE VOLTAGE versus
FREQUENCY
28
24
OUTPUT VOLTAGE (mV)
OVERSHOOT
70
60
90%
20
16
12
8
4
10%
EQUIVALENT INPUT NOISE
VOLTAGE (nV/VHz)
50
40
30
20
10
0
10
40
100
400
1k
V
CC
= 15V
A
V
= 10
R
S
= 100
Ω
T
amb
= +25˚C
V
0
-4
0
t
r
0.1
0.2
0.3
0.4
TIME (
µ
s)
R
L
= 2k
Ω
T
amb
= +25˚C
0.5
0.6
0.7
CC
= 15V
4k
10k
40k 100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION versus FREQUENCY
1
TOTAL HARMONIC DISTORTION
(%)
0.4
0.1
0.04
0.01
0.004
0.001
100
400
1k
4k
10k
40k
100k
FREQUENCY (Hz)
V V = = 15V
15V
CC
CC
1
A A
V
= = 1
V
V V
O (rms)
= 6V
O (rms)
= 6V
T
amb
= = +25˚C
T
amb
+25˚C
6/10
STMICROELECTRONICS [ STMICROELECTRONICS ]
