OPA2683 Datasheet, PDF (7/33 Pages) Texas Instruments – Very Low-Power, Dual, Current-Feedback Operational Amplifier

TYPICAL CHARACTERISTICS: V_S = ±5V (Cont.)
T_A = +25°C, G = +2, R_F = 953Ω, and R_L = 1kΩ, unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE DENSITY
100
Inverting Current Noise
11.6pA/√Hz
10
Noninverting Current Noise
5.2pA/√Hz
Voltage Noise
4.4nV/√Hz
1
100
1k
10k
100k
1M
10M
Frequency (Hz)
–45
–50
–55 _PI
–60
–65
–70
–75
–80
–85
–90
0.1
2-TONE, 3RD-ORDER
INTERMODULATION DISTORTION
f_O = 20MHz
+5V
50Ω OPA2683
–5V
953Ω
953Ω
P_O
1kΩ
f_O = 10MHz
f_O = 5MHz
f_O = 1MHz
1
2
V_PP at 1kΩ Load (Each tone)
50
0.5dB Peaking
45
40
35
30
25
20
15
10
5
0
1
R_S vs C_LOAD
10
C_LOAD (pF)
SMALL-SIGNAL BANDWIDTH vs C_LOAD
9
R_S Adjusted to C_LOAD
22pF ^10pF
6
3
V_I
0
–3
+5V
50Ω OPA2683
–5V
953Ω
953Ω
R_S
V_O
C_L
1kΩ
100pF
47pF
–6
100
100k
1M
10M
100M 1G
Frequency (Hz)
70
60
50
40
30
20
10
0
100
CMRR AND PSRR vs FREQUENCY
CMRR
+PSRR
–PSRR
1k
10k 100k
1M
10M 100M
Frequency (Hz)
OPEN-LOOP TRANSIMPEDANCE GAIN AND PHASE
120
0
20log (Z_OL)
100
–30
80
–60
60
∠ Z_OL
40
–90
–120
20
–150
0
10k
100k
1M
10M
Frequency (Hz)
100M
–180
1G
OPA2683
7
SBOS244H
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