Datasheet

OPA2683
7
SBOS244H
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V (Cont.)
T
A
= +25°C, G = +2, R
F
= 953Ω, and R
L
= 1kΩ, unless otherwise noted.
100
10
1
Frequency (Hz)
100 10M1k 10k 100k 1M
INPUT VOLTAGE AND CURRENT NOISE DENSITY
Voltage Noise (nV/√Hz)
Current Noise (pA/√Hz)
Noninverting Current Noise
5.2pA/√Hz
Voltage Noise
4.4nV/√Hz
Inverting Current Noise
11.6pA/√Hz
OPEN-LOOP TRANSIMPEDANCE GAIN AND PHASE
10k 100k 1M 10M 100M 1G
Frequency (Hz)
Open-Loop Transimpedance Gain (dBΩ)
120
100
80
60
40
20
0
Open-Loop Phase (°)
0
–30
–60
–90
–120
–150
–180
20log (Z
OL
)
∠ Z
OL
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
V
PP
at 1kΩ Load (Each tone)
0.1 1 2
f
O
= 20MHz
f
O
= 10MHz
f
O
= 5MHz
f
O
= 1MHz
2-TONE, 3RD-ORDER
INTERMODULATION DISTORTION
3rd-Order Spurious Level (dBc)
+5V
–5V
50Ω
1kΩ
P
I
P
O
953Ω
953Ω
OPA2683
50
45
40
35
30
25
20
15
10
5
0
C
LOAD
(pF)
1 10 100
R
S
vs C
LOAD
R
S
(Ω)
0.5dB Peaking
CMRR AND PSRR vs FREQUENCY
100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
Common-Mode Rejection Ratio (dB)
Power-Supply Rejection Ratio (dB)
70
60
50
40
30
20
10
0
CMRR
+PSRR
–PSRR
9
6
3
0
–3
–6
Frequency (Hz)
100k 1G1M 10M 100M
SMALL-SIGNAL BANDWIDTH vs C
LOAD
Normalized Gain (dBc)
10pF
953Ω
1kΩ
OPA2683
R
S
V
O
+5V
–5V
50Ω
C
L
953Ω
V
I
22pF
100pF
47pF
R
S
Adjusted to C
LOAD