OPA2680 Datasheet, PDF (7/21 Pages) Burr-Brown (TI) – Dual Wideband, Voltage Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = ±5V (CONT)
At T_A = +25°C, G = +2, R_F = 402Ω, and R_L = 100Ω, unless otherwise noted. See Figure 1.
2nd HARMONIC DISTORTION vs FREQUENCY
–40
–45 ^VO ^{= 2Vp-p}
–50 ^{RL = 100Ω}
–55
G = +10
–60
G = +5
–65
–70
–75
–80
G = +2
–85
–90
0.1
1
Frequency (MHz)
10 20
3rd HARMONIC DISTORTION vs FREQUENCY
–40
–45
V_O = 2Vp-p
R_L = 100Ω
–50
–55
G = +10
–60
–65
G = +5
–70
–75
–80
G = +2
–85
–90
0.1
1
Frequency (MHz)
10 20
INPUT VOLTAGE AND CURRENT NOISE DENSITY
100
10
Voltage Noise
4.8nV/√Hz
1
100
Current Noise
2.5pA/√Hz
1k
10k
100k
1M
10M
Frequency (Hz)
TWO-TONE, 3rd-ORDER SPURIOUS LEVEL
–40
50MHz
–50
–60
20MHz
–70
10MHz
–80
Load Power at matched 50Ω load
–90
–8 –6 –4 –2 0 2 4 6 8 10
Single-Tone Load Power (dBm)
80
70
60
50
40
30
20
10
0
10
RECOMMENDED RS vs CAPACITIVE LOAD
100
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
12
9
G = +2
C_L = 10pF
C_L = 22pF
6
3
C_L = 47pF
0
–3 ^VIN
–6
–9
–12
–15
–18
0
1/2
R_S
OPA2680
V_O
402Ω
C_L 1kΩ
402Ω
1kΩ is optional
C_L = 100pF
100MHz
Frequency (20MHz/div)
200MHz
®
7
OPA2680