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OPA3681 Datasheet, PDF (8/21 Pages) Burr-Brown (TI) – Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable
TYPICAL PERFORMANCE CURVES: VS = ±5V (Cont.)
G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).
CMR AND PSR vs FREQUENCY
70
65 +PSR
60 –PSR
55
CMR
50
45
40
35
30
25
20
102
103
104
105
106
107
108
Frequency (Hz)
OPEN-LOOP TRANSIMPEDANCE GAIN/PHASE
120
0
∠ ZOL
100
–40
| ZOL|
80
–80
60
–120
40
–160
20
–200
0
–240
104
105
106
107
108
109
Frequency (Hz)
COMPOSITE VIDEO dG/dP
0.05
Positive Video
Negative Sync
0.04
dP
0.03
0.02
0.01
dG
0
1
2
3
4
Number of 150Ω Loads
5
4
3
2
1
0
–1
–2
–3
–4
–5
–40
TYPICAL DC DRIFT OVER TEMPERATURE
Non-Inverting Input Bias Current
Inverting
VIO
–20 0 20 40 60 80 100 120
Ambient Temperature (°C)
50
40
30
20
10
0
–10
–20
–30
–40
–50
140
OUTPUT VOLTAGE AND CURRENT LIMITATIONS
5
4
1W Internal
3
Power Limit
Output Current Limited
2
1-Channel
1
Only
0
–1
–2
25Ω
Load Line
50Ω Load Line
100Ω Load Line
–3
–4 Output Current Limit
–5
–300 –200 –100 0
100
IO (mA)
1W Internal
Power Limit
200 300
SUPPLY AND OUTPUT CURRENT vs TEMPERATURE
10
200
Sourcing Output Current
Sinking Output Current
7.5
150
5
100
Quiescent Supply Current
2.5
50
0
–40 –20
0
0 20 40 60 80 100 120 140
Ambient Temperature (°C)
®
OPA3681
8