OPA3680 Datasheet, PDF (7/22 Pages) Burr-Brown (TI) – Triple, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = ±5V
At T_A = +25°C, G = +2, R_F = 250Ω, and R_L = 100Ω, unless otherwise noted. See Figure 1.
INPUT VOLTAGE AND CURRENT NOISE DENSITY
100
10
Voltage Noise
4.8nV/√Hz
Current Noise
2.5pA/√Hz
1
100
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)
35
30
25
20
15
10
5
0
10
RECOMMENDED R_S vs CAPACITIVE LOAD
100
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
12
Signal Gain = +2
9 _{Noise Gain = +3}
100pF/20Ω
10pF/22.2Ω
6
3
0
–3 ^VIN
1/3
R_S
250Ω
–6
OPA3680
–9
250Ω
C_L
V_O
1kΩ
22pF/32.4Ω
–12
–15
–18
0
250Ω
1kΩ is optional
47pF/26.7Ω
100MHz
Frequency (20MHz/div)
200MHz
100
90
80
70
60
50
40
30
20
10
0
10k
CMRR AND PSRR vs FREQUENCY
–PSRR
+PSRR
CMRR
100k
1M
10M
Frequency (Hz)
100M
OPEN-LOOP GAIN AND PHASE
70
60
50
Open-Loop Gain
40
Open-Loop Phase
30
20
10
0
–10
–20
10k
100k
1M
10M
Frequency (Hz)
100M
0
–30
–60
–90
–120
–150
–180
–210
–240
–270
1G
®
7
OPA3680