4
FN6293.5
July 27, 2009
Typical Performance Curves V+ = 5V, V- = 0V,VCM = 2.5V, RL = Open, unless otherwise specified.
FIGURE 1. EL8171 FREQUENCY RESPONSE vs CLOSED
LOOP GAIN
FIGURE 2. EL8172 FREQUENCY RESPONSE vs CLOSED
LOOP GAIN
FIGURE 3. EL8171 FREQUENCY RESPONSE vs SUPPLY
VOLTAGE
FIGURE 4. EL8172 FREQUENCY RESPONSE vs SUPPLY
VOLTAGE
FIGURE 5. EL8171 FREQUENCY RESPONSE vs CLOAD
FIGURE 6. EL8172 FREQUENCY RESPONSE vs CLOAD
10
20
30
40
50
60
70
G
A
IN
(
d
B)
GAIN = 500
GAIN = 1000
GAIN = 200
GAIN = 100
GAIN = 50
GAIN = 20
GAIN = 10
COMMON-MODE INPUT = 1/2V+
FREQUENCY (Hz)
1
10
100
1k
10k
100k
1M
30
40
50
60
70
80
90
FREQUENCY (Hz)
GAI
N
(
d
B)
1
10
100
1k
10k
100k
1M
GAIN = 1,000
GAIN = 10,000
GAIN = 500
GAIN = 2,000
GAIN = 5,000
GAIN = 200
GAIN = 100
COMMON-MODE INPUT = 1/2V+
25
20
15
10
5
0
GAI
N
(
d
B)
V+ = 2.4V
V+ = 5V
AV = 10
RL = 10kΩ
CL = 10pF
RF/RG = 10
RF = 1kΩ
RG = 100Ω
100
10k
1k
100k
1M
FREQUENCY (Hz)
10
100
10k
1k
100k
1M
45
40
35
30
25
20
15
10
5
0
FREQUENCY (Hz)
GA
IN
(
d
B)
V+ = 5V
V+ = 2.4V
AV = 100
RL = 10kΩ
CL = 10pF
RF/RG = 100
RF = 10kΩ
RG = 100Ω
10
25
20
15
10
5
GAI
N
(d
B)
100
10k
1k
100k
1M
FREQUENCY (Hz)
10
AV = 10
R = 10k
Ω
CL = 10pF
RF/RG = 10
RF = 10kΩ
RG = 100Ω
220pF
470pF
820pF
100pF
GAI
N
(
d
B)
100
10k
1k
100k
1M
FREQUENCY (Hz)
10
50
45
40
35
30
25
AV = 10
R = 10k
Ω
CL = 10pF
RF/RG = 10
RF = 10kΩ
RG = 100Ω
56pF
1200pF
2200pF
820pF
EL8171, EL8172