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OPA2680 Datasheet, PDF (8/22 Pages) Burr-Brown (TI) – Dual Wideband, Voltage Feedback OPERATIONAL AMPLIFIER With Disable
TYPICAL PERFORMANCE CURVES: VS = ±5V (CONT)
At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω, unless otherwise noted. See Figure 1.
CMRR AND PSRR vs FREQUENCY
100
90
80
–PSRR
70
+PSRR
60
CMRR
50
40
30
20
10
0
10k
100k
1M
10M
Frequency (Hz)
100M
OPEN-LOOP GAIN AND PHASE
70
60
50
Open-Loop Gain
40
Open-Loop Phase
30
20
10
0
–10
–20
10k
100k
1M
10M
Frequency (Hz)
100M
0
–30
–60
–90
–120
–150
–180
–210
–240
–270
1G
0.2
0.175
Video In
0.15
75Ω
0.125
0.1
402Ω
0.075
0.05
0.025
0
1
COMPOSITE VIDEO dG/dP
+5V
1/2
OPA2680
402Ω
Video
Loads
Optional
1.3kΩ
Pulldown
No Pulldown
With 1.3kΩ
Pulldown
dP
dG
–5V
dG
dP
2
3
4
Number of 150Ω Loads
TYPICAL DC DRIFT OVER TEMPERATURE
15
10
IB
5
VIO
0
IOS
–5
–10
–15
–40 –20
0 20 40 60 80 100 120 140
Ambient Temperature (°C)
OUTPUT VOLTAGE AND CURRENT LIMITATIONS
5
4
1W Internal
3
Power Limit
Output Current Limited
2 One 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
200
20.0
Sourcing Output Current
Sinking Output Current
150
15.0
100
Quiescent Supply Current
10.0
50
5.0
0
–40 –20
0
0 20 40 60 80 100 120 140
Ambient Temperature (°C)
®
OPA2680
8