OPA2680 Datasheet, PDF (9/21 Pages) Burr-Brown (TI) – Dual Wideband, Voltage Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = +5V
At T_A = +25°C, G = +2, R_F = 402Ω, and R_L = 100Ω, unless otherwise noted. See Figure 2.
SMALL-SIGNAL FREQUENCY RESPONSE
6
3 ^{VO = 0.5Vp-p}
G = +1
R_F = 25Ω
0
–3
G = +2
–6
–9
G = +5
–12
–15
G = +10
–18
–21
–24
0.5
10
100
500
Frequency (MHz)
12
9
6
3
0
–3
–6
–9
–12
–15
–18
0.5
LARGE-SIGNAL FREQUENCY RESPONSE
V_O = 0.5Vp-p
V_O = 1Vp-p
V_O = 2Vp-p
V_O = 3Vp-p
10
100
500
Frequency (MHz)
SMALL-SIGNAL PULSE RESPONSE
2.9
G = +2
2.8
V_O = 0.5Vp-p
2.7
2.6
2.5
2.4
2.3
2.2
2.1
Time (5ns/div)
LARGE-SIGNAL PULSE RESPONSE
4.1
G = +2
3.7
V_O = 2Vp-p
3.3
2.9
2.5
2.1
1.7
1.3
0.9
Time (5ns/div)
70
60
50
40
30
20
10
0
1
RECOMMENDED R_S vs CAPACITIVE LOAD
Noise Gain = 2.6
10
100
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
12
Signal Gain = +2
9 _{Noise Gain = 2.6}
6
C_L = 47pF
C_L = 10pF
C_L = 22pF
3
C_L = 100pF
+5V
0
–3
VI
–6
–9
–12
–15
0.1µF
714Ω
1/2
RS
58Ω
714Ω 714Ω ^OPA2680
402Ω
0.1µF
402Ω
V_O
CL
–18
0
100MHz
Frequency (20MHz/div)
200MHz
®
9
OPA2680