Datasheet

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SBOS235E − MARCH 2002− REVISED MAY 2009
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7
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, V
S
= 5V, G = +1, R
F
= 0Ω, R
L
= 1kΩ, and connected to V
S
/2, unless otherwise noted.
FREQUENCY RESPONSE FOR VARIOUS R
L
Frequency (Hz)
Normalized Gain (dB)
10M1M 100M 1G100k
3
0
−
3
−
6
−
9
−
12
−
15
R
L
=10k
Ω
R
L
=100
Ω
R
L
=1k
Ω
R
L
=50
Ω
G=+1
R
F
=0
Ω
V
O
=0.1V
PP
C
L
=0pF
FREQUENCY RESPONSE FOR VARIOUS C
L
Frequency (Hz)
Normalized Gain (dB)
10M1M 100M 1G100k
9
6
3
0
−
3
−
6
−
9
−
12
−
15
C
L
= 100pF
C
L
=47pF
C
L
=5.6pF
G=+1
V
O
=0.1V
PP
R
S
=0Ω
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
R
S
(
Ω
)
10010
1k1
160
140
120
100
80
60
40
20
0
OPA357
C
L
R
S
V
IN
V
O
1kΩ
For 0.1dB
Flatness
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (Hz)
Normalized Gain (dB)
100M10M1M
1G100k
3
0
−
3
−
6
−
9
−
12
−
15
OPA357
C
L
R
S
V
IN
V
O
1k
Ω
C
L
= 47pF, R
S
= 140
Ω
C
L
= 100pF, R
S
=120
Ω
C
L
=5.6pF,R
S
=0
Ω
G=+1
V
O
=0.1V
PP
COMMON−MODE REJECTION RATIO AND
POWER−SUPPLY REJECTION RATIO vs FREQUENCY
Frequency (Hz)
CMRR, PSRR (dB)
10k 100k 1M 10M 100M 1G
100
80
60
40
20
0
PSRR
−
PSRR+
CMRR
OPEN−LOOP GAIN AND PHASE
Frequency (Hz)
Open−Loop Phase (degrees)
Open−Loop Gain (dB)
10 100 1k 100k10k 1M 10M 1G100M
180
160
140
120
100
80
60
40
20
0
−
20
−
40
Phase
Gain