Datasheet

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SBOS270C − AUGUST 2003 − REVISED AUGUST 2008
www.ti.com
10
TYPICAL CHARACTERISTICS: V
S
= ±6V (continued)
At T
A
= +25°C, G = +4, R
F
= 402Ω, and R
L
= 100Ω, unless otherwise noted.
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
1 10 100 1k
90
80
70
60
50
40
30
20
10
0
R
S
(
Ω
)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (Hz)
1M
2
0
−
2
−
4
−
6
−
8
−
10
10M 100M 1G
Normalized Gain to Capacitive
Load (dB)
C
L
= 10pF
C
L
= 22pF
C
L
= 100pF
C
L
=47pF
1/2
OPA2674
402Ω
R
S
133Ω
1kΩ
(1)
C
L
NOTE: (1) 1k
Ω
is optional.
CMRR AND PSRR vs FREQUENCY
Frequency (Hz)
1k
70
60
50
40
30
20
10
0
10k 100k 1M 10M 100M
Power−Supply Rejection Ratio (dB)
Common−Mode Rejection Ratio (dB)
CMRR
−
PSRR
+PSRR
OPEN−LOOP TRANSIMPEDANCE GAIN AND PHASE
Frequency (Hz)
10k 100k 1M 10M 100M 1G
120
100
80
60
40
20
0
Transimpedance Gain (dB
Ω
)
0
−
45
−
90
−
135
−
180
−
225
−
270
Transimpedance Phase (
_
)
Gain
Phase
CLOSED−LOOP OUTPUT IMPEDANCE
vs FREQUENCY
Frequency (Hz)
100k 1M 10M 100M
100
10
1
0.1
0.01
0.001
Output Resistance (
Ω
)
Idle Power
Full Power
Power Cutback
COMPOSITE VIDEO dG/dP
Number of 150
Ω
Loads
12345678910
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
dG/dP (%/
_
)
G=+2
R
F
=475
Ω
V
S
=
±
5V
dP, Negative Video
dP, Positive Video
dG, Positive Video
dG, Negative Video