DUAL HIGH-SPEED LOW-NOISE OPERATIONAL AMPLIFIER
SLLS633C – OCTOBER 2004 – REVISED NOVEMBER 2006
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TYPICAL CHARACTERISTICS (continued)
INPUT REFERRED NOISE VOLTAGE
vs
SOURCE RESISTANCE
1000
V
CC+
= 15 V
nV/ÖHz
Input Referred Noise Voltage – nV/rtHz
16
GAIN AND PHASE MARGIN
vs
DIFFERENTIAL SOURCE RESISTANCE
64
60
14
56
52
12
48
V
CC–
= –15 V
f = 1 Hz
T
A
= 25°C
Phase Margin
10
40
Gain Margin
8
36
32
28
10
6
V
CC+
= 15 V
V
CC–
= –15 V
A
V
= 100
V
O
= 0 V
T
A
= 25°C
24
20
16
12
8
4
4
2
1
1.E+01
10
0
1.E+02
100
1.E+03
1k
1.E+04
10k
1.E+05
100k
1.E+06
1M
0
0
1
10
10
100
10 0
1k
10 0 0
0
100k
10
10k
0 10 0 0 0 0
00
R
S
– Source Resistance –
W
è
R
SD
– Differential Source Resistance –
W
è
LARGE SIGNAL TRANSIENT RESPONSE
(A
V
= 1)
LARGE SIGNAL TRANSIENT RESPONSE
(A
V
= –1)
Input
55
45
V
O
– Output Voltage – V
10
0
V
O
– Output Voltage – V
55
45
Input
10
0
-10
-20
-30
-40
-50
-60
V
I
– Input Voltage – V
35
25
15
5
-5
-15
-2
2
6
10
Time – µs
14
18
22
V
CC+
= 15 V
V
CC–
= –15 V
A
V
= 1
R
L
= 2 k
W
C
L
= 100 pF
T
A
= 25°C
-10
-20
-30
-40
-50
-60
35
25
15
5
-5
-15
-2
2
6
10
Time – µs
14
Output
Output
V
CC+
= 15 V
V
CC–
= –15 V
A
V
= –1
R
L
= 2 k
W
C
L
= 100 pF
T
A
= 25°C
18
22
12
V
I
– Input Voltage – V
Phase Margin – deg
Gain Margin – dB
100
44
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