OPA3682 Datasheet, PDF (11/19 Pages) Burr-Brown (TI) – Triple, Wideband, Fixed Gain BUFFER AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = +5V
G = +2 and R_L = 100Ω to V_S /2, unless otherwise noted (see Figure 2).
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
0
SMALL-SIGNAL FREQUENCY RESPONSE
G = +2
G = +1
G = –1
250MHz
Frequency (50MHz/div)
500MHz
LARGE-SIGNAL FREQUENCY RESPONSE
8
7 ^RL ^{= 100Ω to 2.5V}
V_O = 0.5Vp-p
6
5
V_O = 1Vp-p
4
V_O = 2Vp-p
3
2
1
0
–1
–2
0
125
250
Frequency (25MHz/div)
SMALL-SIGNAL PULSE RESPONSE
2.10
2.9
V_O = 0.5Vp-p
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
Time (5ns/div)
LARGE-SIGNAL PULSE RESPONSE
4.5
4.1
V_O = 2Vp-p
3.7
3.3
2.9
2.5
2.1
1.7
1.3
0.9
0.5
Time (5ns/div)
70
60
50
40
30
20
10
0
1
RECOMMENDED R_S vs CAPACITIVE LOAD
10
100
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
15
12
C_L = 47pF
C_L = 10pF
9
6
+5V
3
806Ω
0 V_IN 0.1µF
C_L = 22pF
–3
–6
–9
–12
–15
0
57.6Ω 806Ω OPA3682
400Ω
R_{S CL}
V_O
1kΩ
0.1µF
400Ω
(1kΩ is optional)
C_L = 100pF
100MHz
200MHz
Frequency (20MHz/div)
®
11
OPA3682