OPA4820 Datasheet, PDF (8/35 Pages) Texas Instruments – Quad, Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier

OPA4820
SBOS317D − SEPTEMBER 2004 − REVISED AUGUST 2008
TYPICAL CHARACTERISTICS: V_S = ±5V (continued)
RF = 402Ω, RL = 100Ω, and G = +2, unless otherwise noted.
www.ti.com
OUTPUT VOLTAGE AND CURRENT LIMITATIONS
5
1W Internal
4 _{Power Limit}
Output Current
Limit
3
2
R_L = 100Ω
1
R_L = 25Ω
0
R_L = 50Ω
−1
−2
−3
Output Current
−4 _Limit
−5
−150 −100
Single Channel
−50
0
50
1W Internal
Power Limit
100
150
I_O (mA)
CLOSED−LOOP OUTPUT IMPEDANCE vs FREQUENCY
10
1
0.1
0.01
1k
10k
100k
1M
10M
100M
Frequency (Hz)
NONINVERTING OVERDRIVE RECOVERY
8
4
Input Right Scale
6
3
4
2
2
1
Output Left Scale
0
0
−2
−1
−4 _{RL = 100Ω}
−2
−6
G = +2V/V
See Figure 1
−3
−8
−4
Time (40ns/div)
INVERTING OVERDRIVE RECOVERY
5
4
3
Input
2
1
0
−1
−2
−3
Output
R_L = 100Ω
G = −1V/V
−4
See Figure 2
−5
Time (40ns/div)
COMPOSITE VIDEO dG/dP
0.20
G = +2V/V
0.18
dG Negative Video
0.16
0.14
0.12
0.10
0.08
dP Positive Video
0.06
dP Negative Video
0.04
0.02
0
1
dG Positive Video
2
3
Video Loads
0.40
0.36
0.32
0.28
0.24
0.20
0.16
0.12
0.08
0.04
0
4
TYPICAL DC DRIFT OVER TEMPERATURE
1.0
20
Input Offset Voltage (V_OS)
Left Scale
0.5
10
0
−0.5
−1.0
−50 −25
10x Input Offset Current (I_OS)
Right Scale
Input Bias Current (I_B)
Right Scale
0
25 50 75 100
Ambient Temperature (_C)
0
−10
−20
125
8