OPA2631 Datasheet, PDF (9/18 Pages) Burr-Brown (TI) – Dual, Low Power, Single-Supply OPERATIONAL AMPLIFIER

TYPICAL PERFORMANCE CURVES: V_S = +3V
At T_A = 25°C, G = +2, R_F = 750Ω, and R_L = 150Ω to V_S /2, unless otherwise noted (see Figure 1).
SMALL-SIGNAL FREQUENCY RESPONSE
6
V_O = 200mVp-p
3
G = +2
0
–3
G = +5
–6
–9
–12
–15
G = +10
–18
–21
–24
1
10
100
300
Frequency (MHz)
12
9
6
3
0
–3
–6
–9
–12
–15
–18
1
LARGE-SIGNAL FREQUENCY RESPONSE
V_O = 200mVp-p
V_O = 1Vp-p
V_O = 2Vp-p
10
100
300
Frequency (MHz)
TWO-TONE, 3rd-ORDER
INTERMODULATION SPURIOUS
–30
f_O = 10MHz
–40
–50
–60
–70
–80
–90
–16
f_O = 5MHz
f_O = 1MHz
Load Power at
Matched 50Ω Load
–14
–12
–10
–8
–6
–4
Single-Tone Load Power (dBm)
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
50
OUTPUT SWING vs LOAD RESISTANCE
1.0
0.9
Left Scale
0.8
Maximum V_O
0.7
0.6
0.5
0.4
0.3
Right Scale
0.2
Minimum V_O
0.1
0.0
100
1000
R_L (Ω)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
6
3 ^{VO = 0.2Vp-p}
C_L = 1000pF
R_S = 10Ω
C_L = 10pF
R_S = 249Ω
0
–3
–6
C_L = 100pF
–9
R_S = 35.7Ω
–12
–15
1/2
OPA2631
R_S
–18
V_O
C_L
1kΩ
–21
–24
1
+V_S/2
10
100
300
Frequency (MHz)
1000
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
OPA2631
9
SBOS067A