OPA3691 Datasheet, PDF (8/32 Pages) Burr-Brown (TI) – Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL CHARACTERISTICS: V_S = ±5V (Cont.)
T_A = +25°C, G = +2, and R_L = 100Ω, (see Figure 1 for AC performance only), unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE DENSITY
100
10
1
100
Inverting Input Current Noise (15pA/√Hz)
Noninverting Input Current Noise (12pA/√Hz)
Voltage Noise (1.7nV/√Hz)
1k
10k
100k
1M
10M
Frequency (Hz)
2-TONE, 3RD-ORDER
INTERMODULATION SPURIOUS
–30
dBc = dB below carriers
50MHz
–40
20MHz
–50
10MHz
–60
–70
–80
Load Power at Matched 50Ω Load
–90
–8 –6 –4 –2 0 2 4 6 8 10
Single-Tone Load Power (dBm)
70
60
50
40
30
20
10
0
1
RECOMMENDED R_S vs CAPACITIVE LOAD
10
100
1k
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
9
6
C_L = 10pF
3
C_L = 22pF
0
V_IN
–3
1/3
R_S
V_O
OPA3691
C_L = 47pF
–6
–9
0
402Ω
C_L
1kΩ
402Ω
1kΩ is optional.
C_L = 100pF
125MHz
Frequency (25MHz/div)
250MHz
65
60
55
50
45
40
35
30
25
20
1k
CMRR AND PSRR vs FREQUENCY
+PSRR
–PSRR
CMRR
10k
100k
1M
10M
100M
Frequency (Hz)
OPEN-LOOP TRANSIMPEDANCE GAIN/PHASE
120
0
100
| Z_OL|
80
∠ Z_OL
60
–40
–80
–120
40
–160
20
–200
0
10k
100k
1M
10M
Frequency (Hz)
100M
–240
1G
8
OPA3691
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