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SLOS245E − MARCH 2000 − REVISED JANUARY 2005
11
WWW.TI.COM
TYPICAL CHARACTERISTICS
Figure 18
0
10
20
30
40
50
60
70
80
90
100
10 100 1 k 10 k
PHASE MARGIN
vs
LOAD CAPACITANCE
C
L
− Load Capacitance − pF
V
DD
= 2.7 V
R
L
= 2 kΩ
A
V
= 1
T
A
= 25°C
Rnull=50 Ω
Rnull=20 Ω
Rnull=0 Ω
φ
m
− Phase Margin − °
Figure 19
0
20
40
60
80
100
120
140
10 100 1 k 10 k 100 k
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
f − Frequency − Hz
nV/ Hz− Equivalent Input Noise Voltage −V
n
V
DD
= 2.7 V
V
DD
= 1.8 V
T
A
= 25°C
Figure 20
0
0.5
1
1.5
2
2.5
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
0.5
1
1.5
2
2.5
t − Time − µs
VOLTAGE-FOLLOWER LARGE-SIGNAL PULSE RESPONSE
vs
TIME
V
DD
= 2.7 V
R
L
= 2 kΩ
C
L
= 10 pF
A
V
= 1
T
A
= 25°C
V
I
V
O
− Input Voltage − VV
I
− Output Voltage − VV
O
Figure 21
t − Time − µs
VOLTAGE-FOLLOWER SMALL-SIGNAL PULSE RESPONSE
vs
TIME
V
DD
= 2.7 V
R
L
= 2 kΩ
C
L
= 10 pF
A
V
= 1
T
A
= 25°C
− Output Voltage − VV
O
− Input Voltage − VV
I
1.25
1.30
1.35
1.40
0 0.2 0.4 0.6 0.8 1 1.2 1.4
1.25
1.30
1.35
1.40
1.45
V
I
V
O
Figure 22
t − Time − µs
− Output Voltage − VV
O
INVERTING LARGE-SIGNAL PULSE RESPONSE
vs
TIME
0
0.5
1
1.5
2
2.5
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3
−1
−0.5
0
0.5
1
− Input Voltage − VV
I
V
DD
= 2.7 V
R
L
= 2 kΩ
C
L
= 10 pF
A
V
= −1
T
A
= 25°C
V
I
V
O
Figure 23
t − Time − µs
INVERTING SMALL-SIGNAL PULSE RESPONSE
vs
TIME
− Output Voltage − VV
O
1.25
1.30
1.35
1.40
0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3
−0.05
0
0.05
0.10
V
DD
= 2.7 V
R
L
= 2 kΩ
C
L
= 10 pF
A
V
= −1
T
A
= 25°C
− Input Voltage − VV
I
V
O
V
I