Datasheet
OPA684
8
SBOS219D
www.ti.com
CMRR and PSRR vs FREQUENCY
10
2
10
3
10
4
10
5
10
6
10
7
10
8
Frequency (Hz)
Common-Mode Rejection Ratio (dB)
70
60
50
40
30
20
10
0
CMRR
+PSRR
–PSRR
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
Number of 150Ω Video Loads
1423
COMPOSITE VIDEO DIFFERENTIAL GAIN/PHASE
Differential Gain (%)
Differential Phase (°)
Gain = +2
NTSC, Positive Video
dG
dP
OUTPUT CURRENT AND VOLTAGE LIMITATIONS
–150 –100 –50 0 50 100 150
I
O
(MA)
V
O
(V)
5
4
3
2
1
0
–1
–2
–3
–4
–5
1W Power
Limit
R
L
= 100Ω
R
L
= 50
Ω
R
L
= 500
Ω
1W Power
Limit
TYPICAL DC DRIFT OVER TEMPERATURE
–50 –25 0 25 50 75 100 125
Ambient Temperature (°C)
Input Bias Currents (µA)
and Offset Voltage (mV)
4
3
2
1
0
–1
–2
–3
–4
Input Offset VoltageNoninverting Input Bias Current
Inverting Input Bias Current
SUPPLY AND OUTPUT CURRENT
vs TEMPERATURE
–25 0 25 50 75 100 125
Ambient Temperature (°C)
Output Current (mA)
200
175
150
125
100
Supply Current (mA)
2
1.5
1.9
1.8
1.7
1.6
Sourcing Output Current
Sinking Output Current
Supply Current
Right Scale
TYPICAL CHARACTERISTICS: V
S
= ±5V (Cont.)
At T
A
= +25°C, G = +2, R
F
= 1kΩ, R
L
= 100Ω, unless otherwise noted.
OPEN-LOOP TRANSIMPEDANCE GAIN AND PHASE
10
2
10
3
10
4
10
5
10
6
10
7
10
8
10
9
Frequency (Hz)
Open-Loop Transimpedance Gain (dBΩ)
120
100
80
60
40
20
0
Open-Loop Phase (°)
0
–30
–60
–90
–120
–150
–180
20log (Z
OL
)
∠ Z
OL