OPA2822 Datasheet, PDF (7/27 Pages) Texas Instruments – Dual, Wideband, Low-Noise Operational Amplifier

TYPICAL CHARACTERISTICS: V_S = ±6V (Cont.)
T_A = +25°C, G = +2, R_F = 402Ω, and R_L = 100Ω, unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE DENSITY
10
1
10²
Voltage Noise
Current Noise
10³
10⁴
10⁵
Frequency (Hz)
2nV/√Hz
1.6pA/√Hz
10⁶
10⁷
2-TONE, 3rd-ORDER
INTERMODULATION INTERCEPT
60
55
50
45
40 P_I
35 50Ω
30
1/2
OPA2822
402Ω
50Ω
P_O
50Ω
25
402Ω
20
1
10
20
Frequency (MHz)
CHANNEL-TO-CHANNEL CROSSTALK
–40
Input Referred
–50 ^RL ^{= 100Ω}
G = +2
–60
–70
–80
–90
–100
0.1
1
10
Frequency (MHz)
100
500
0.50
0.40
0.30
0.20
0.10
0.00
–0.10
–0.20
–0.30
–0.40
NG = 3.5
R_NG = 301Ω
–0.50
0
GAIN FLATNESS
NG = 2.5
R_NG = 904Ω
NG = 3.0
R_NG = 452Ω
50
100
Frequency (MHz)
NG = 2
R_NG = ∞
G=2
Noise Gain
Adjusted
See Figure 12
150
200
1000
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
For Maximally Flat Response,
See Figure 12
1
10
100
1k
Capacitive Load (pF)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
9
6
3
0
V_I
–3
–6
–9
1/2
OPA2822
402Ω
402Ω
C_L = 100pF
R_S
V_O
C_L
1kΩ
1kΩ is optional.
C_L = 10pF
C_L = 22pF
C_L = 47pF
–12
1
10
100
500
Frequency (MHz)
OPA2822
7
SBOS188C
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